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天佐.乾坤袋

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简介

天佐.乾坤袋 基于抽屉式文件存储的NoSql数据库，可用于文件打包，数据整合，加密存放等多种用途。可以方便快捷的搭建和部署存储应用的系统。

传说: 弥勒所有，专做储物之用。拥有不可思议之力，内部有著奇异之空间，空间之大似能将天地收纳于内。袋中另有乾坤，应有尽有，取之不尽。

目标

构建一种使用简单接口调用就可以完成数据管理的NoSql数据库。

功能

• 🧩 集成简单
• 📦 存放文件可自由选择压缩
• 🪢 数据经过256位AES算法加密
• 📒 支持数据批量增加/删除/修改/查询
• 📃 支持直接获取原始数据流

截图

天佐.乾坤袋测试程序:

例子

cpp

#include <iostream>
#include <memory>
#include "tianzuo.QiankunInterface.h" // 接口头文件 interface heaher file

int main() {
    // 准备数据 prepare data
    Qiankun_db_verify_struct db_verify("qiankunDataBase.Ztz", "password");
    int integer = 12345678;
    Qiankun_data_type_struct data_type(Qiankun_data_type_integer, -1, "integer");
    Qiankun_user_data_struct user_data(&integer, 0);
    int data_size = 0;
    Qiankun_get_user_data_struct get_user_data(reinterpret_cast<void*&>(integer), &data_size);

    // 初始化接口 initialize the interface
    std::unique_ptr<tianzuo_QiankunInterface> qiankun_interface(new tianzuo_QiankunInterface());

    // 创建实例 create an instance
    tianzuo_QiankunInt* qiankun = qiankun_interface->initialize();

    // 初始化实例 initialize the instance
    int error_code = qiankun->initialize();
    if (error_code != Qiankun_errorcode_success) {
        std::cout << "initialize error: " << error_code;
        goto return_error;
        return -1;
    }
    
    // 创建数据库 create database
    error_code = qiankun->db_create_database(&db_verify, "qiankunDataBase", true);
    if (error_code != Qiankun_errorcode_success) {
        std::cout << "db_create_database error: " << error_code;
        goto return_error;
        return -1;
    }

    // 打开数据库 open database
    error_code = qiankun->db_open_database(&db_verify);
    if (error_code != Qiankun_errorcode_success) {
        std::cout << "db_open_database error: " << error_code;
        goto return_error;
        return -1;
    }

    // 向数据库写入一个整型数据 writes an integer to the database
    error_code = qiankun->data_combine(&db_verify, &data_type, nullptr, &user_data, false, -1);
    if (error_code != Qiankun_errorcode_success) {
        std::cout << "data_combine error: " << error_code;
        goto return_error;
        return -1;
    }


    // 读取刚写入的数据 read the data just written
    integer = -1;
    error_code = qiankun->data_extract(&db_verify, &data_type, nullptr, &get_user_data);
    if (error_code != Qiankun_errorcode_success) {
        std::cout << "data_extract error: " << error_code;
        goto return_error;
        return -1;
    }

    std::cout << "get integer data: " << integer;

    // 关闭数据库 close database
    error_code = qiankun->db_close_database(&db_verify);
    if (error_code != Qiankun_errorcode_success) {
        std::cout << "db_close_database error: " << error_code;
        goto return_error;
        return -1;
    }

return_error:

    // 释放接口 terminate the interface
    if (qiankun_interface != nullptr && qiankun != nullptr) {
        qiankun_interface->terminate(&qiankun);
    }

    std::cout << "test done -------------------";
    
    return 0;
}

python

from ctypes import *
from enum import Enum
import ctypes

tianzuo_QiankunLib = cdll.LoadLibrary('./tianzuo.Qiankun.dll')

class Qiankun_error_code(Enum):
    Qiankun_errorcode_success           = 1 # 正确的值
    Qiankun_errorcode_normal            = 2 # 错误的值
    Qiankun_errorcode_differ            = 3 # 数据库文件数效验未通过 (The number of database files fails to be verified)
    Qiankun_errorcode_no_rights         = 4 # 数据库密码效验未通过 (The database password verification failed)
    Qiankun_errorcode_db_not_exist      = 5 # 数据库文件不存在 (The database file does not exist)
    Qiankun_errorcode_exist             = 6 # 数据已存在 (Data already exists)
    Qiankun_errorcode_not_exist         = 7 # 数据不存在 (Data does not exist)
    Qiankun_errorcode_out_of_range      = 8 # 超出范围 (out of range)
    Qiankun_errorcode_type              = 9 # 类型不符 (wrong type)
    Qiankun_errorcode_param             = 10 # 参数错误 (parameter error)
    Qiankun_errorcode_compress          = 11 # 压缩错误 (compression error)
    Qiankun_errorcode_get_array         = 12 # 数组错误 (arrary error)
    Qiankun_errorcode_out_of_memory     = 13 # 内存溢出 (memory overflow)
    Qiankun_errorcode_handle            = 14 # 句柄错误 (error handle)
    Qiankun_errorcode_io                = 15 # IO错误 (io error)

class tianzuo_QiankunInt:
    def __init__(self):
        tianzuo_QiankunLib.tianzuo_QiankunInterface_initialize.restype = c_void_p
        self.obj = tianzuo_QiankunLib.tianzuo_QiankunInterface_initialize()

    def __del__(self):
        tianzuo_QiankunLib.tianzuo_QiankunInterface_terminate.argtypes = [c_void_p]
        tianzuo_QiankunLib.tianzuo_QiankunInterface_terminate(self.obj)

    def initialize(self):
        tianzuo_QiankunLib.tianzuo_QiankunInterface_initialize.restype = c_int
        tianzuo_QiankunLib.tianzuo_QiankunInt_initialize.argtypes = [c_void_p]
        return tianzuo_QiankunLib.tianzuo_QiankunInt_initialize(self.obj)

    def db_create_database(self, db_file_name, db_password, db_name, over_write):
        tianzuo_QiankunLib.tianzuo_QiankunInt_db_create_database.argtypes = [c_void_p, c_char_p, c_char_p, c_char_p, c_int]
        return tianzuo_QiankunLib.tianzuo_QiankunInt_db_create_database(self.obj, db_file_name, db_password, db_name, over_write)

    def db_open_database(self, db_file_name, db_password):
        tianzuo_QiankunLib.tianzuo_QiankunInt_db_open_database.argtypes = [c_void_p, c_char_p, c_char_p]
        return tianzuo_QiankunLib.tianzuo_QiankunInt_db_open_database(self.obj, db_file_name, db_password)

    def db_close_database(self, db_file_name, db_password):
        tianzuo_QiankunLib.tianzuo_QiankunInt_db_close_database.argtypes = [c_void_p, c_char_p, c_char_p]
        return tianzuo_QiankunLib.tianzuo_QiankunInt_db_close_database(self.obj, db_file_name, db_password)

    def data_int_combine(self, db_file_name, db_password, data_name, remark, data):
        tianzuo_QiankunLib.tianzuo_QiankunInt_data_int_combine.argtypes = [c_void_p, c_char_p, c_char_p, c_char_p, c_char_p, c_int]
        return tianzuo_QiankunLib.tianzuo_QiankunInt_data_int_combine(self.obj, db_file_name, db_password, data_name, remark, data)

    def data_int_extract(self, db_file_name, db_password, data_name, data):
        tianzuo_QiankunLib.tianzuo_QiankunInt_data_int_extract.argtypes = [c_void_p, c_char_p, c_char_p, c_char_p, ctypes.POINTER(ctypes.c_int)]
        return tianzuo_QiankunLib.tianzuo_QiankunInt_data_int_extract(self.obj, db_file_name, db_password, data_name, data)

def main():

    # 初始化接口 initialize the interface
    print("initialize the interface")

    # 创建实例 create an instance
    qiankun = tianzuo_QiankunInt()
    error_code = qiankun.initialize()
    if error_code != Qiankun_error_code.Qiankun_errorcode_success.value:
        print("initialize error:", error_code)
        return

    # 创建数据库 create database
    db_file_name = b"qiankunDataBase.Ztz"
    db_password = b"password"
    error_code = qiankun.db_create_database(db_file_name, db_password, b"qiankunDataBase", True)
    if error_code != Qiankun_error_code.Qiankun_errorcode_success.value:
        print("db_create_database error:", error_code)
        return

    # 打开数据库 open database
    error_code = qiankun.db_open_database(db_file_name, db_password)
    if error_code != Qiankun_error_code.Qiankun_errorcode_success.value:
        print("db_open_database error:", error_code)
        return

    # 向数据库写入一个整型数据 writes an integer to the database
    intInt = 12345678
    error_code = qiankun.data_int_combine(db_file_name, db_password, b"integer", None, intInt)
    if error_code != Qiankun_error_code.Qiankun_errorcode_success.value:
        print("data_combine error:", error_code)
        return

    # 读取刚写入的数据 read the data just written
    return_data = ctypes.c_int()
    error_code = qiankun.data_int_extract(db_file_name, db_password, b"integer", ctypes.byref(return_data))
    if error_code != Qiankun_error_code.Qiankun_errorcode_success.value:
        print("data_extract error:", error_code)
        return

    integer = return_data.value
    print("get integer data: {}".format(integer))

    # 关闭数据库 close database
    error_code = qiankun.db_close_database(db_file_name, db_password)
    if error_code != Qiankun_error_code.Qiankun_errorcode_success.value:
        print("db_close_database error:", error_code)
        return

    print("test done -------------------")

if __name__ == '__main__':
    main()

java

package cn.camelsoft;

import com.sun.jna.Library;
import com.sun.jna.Native;
import com.sun.jna.Pointer;

enum Qiankun_error_code {
    Qiankun_errorcode_success           (0x00000001),   ///<  正确的值
    Qiankun_errorcode_normal            (0x00000002),   ///<  错误的值
    Qiankun_errorcode_differ            (0x00000003),   ///<  数据库文件数效验未通过 (The number of database files fails to be verified)
    Qiankun_errorcode_no_rights         (0x00000004),   ///<  数据库密码效验未通过 (The database password verification failed)
    Qiankun_errorcode_db_not_exist      (0x00000005),   ///<  数据库文件不存在 (The database file does not exist)
    Qiankun_errorcode_exist             (0x00000006),   ///<  数据已存在 (Data already exists)
    Qiankun_errorcode_not_exist         (0x00000007),   ///<  数据不存在 (Data does not exist)
    Qiankun_errorcode_out_of_range      (0x00000008),   ///<  超出范围 (out of range)
    Qiankun_errorcode_type              (0x00000009),   ///<  类型不符 (wrong type)
    Qiankun_errorcode_param             (0x0000000A),   ///<  参数错误 (parameter error)
    Qiankun_errorcode_compress          (0x0000000B),   ///<  压缩错误 (compression error)
    Qiankun_errorcode_get_array         (0x0000000C),   ///<  数组错误 (arrary error)
    Qiankun_errorcode_out_of_memory     (0x0000000D),   ///<  内存溢出 (memory overflow)
    Qiankun_errorcode_handle            (0x0000000E),   ///<  句柄错误 (error handle)
    Qiankun_errorcode_io                (0x0000000F);   ///<  IO错误 (io error)

    private int value;

    Qiankun_error_code(int value) {
        this.value = value;
    }

    public int getValue() {
        return value;
    }
}

public class Main {

    public interface tianzuo_QiankunLib extends Library {
        tianzuo_QiankunLib instance = (tianzuo_QiankunLib) Native.load("./tianzuo.Qiankun.dll", tianzuo_QiankunLib.class);
        Pointer tianzuo_QiankunInterface_initialize();
        void tianzuo_QiankunInterface_terminate(Pointer qiankun);
        int tianzuo_QiankunInt_initialize(Pointer qiankun);

        int tianzuo_QiankunInt_db_create_database(Pointer qiankun, String db_file_name, String db_password, String db_name, Boolean over_write);
        int tianzuo_QiankunInt_db_open_database(Pointer qiankun, String db_file_name, String db_password);
        int tianzuo_QiankunInt_db_close_database(Pointer qiankun, String db_file_name, String db_password);
        int tianzuo_QiankunInt_data_int_combine(Pointer qiankun, String db_file_name, String db_password, String data_name, String remark, int data);
        int tianzuo_QiankunInt_data_int_extract(Pointer qiankun, String db_file_name, String db_password, String data_name, int[] data);
    }

    public static void main(String[] args) {
        System.setProperty("jna.encoding","UTF-8");

        // 初始化接口 initialize the interface
        System.out.printf("initialize the interface\n");

        // 创建实例 create an instance
        Pointer qiankun = tianzuo_QiankunLib.instance.tianzuo_QiankunInterface_initialize();
        int error_code = tianzuo_QiankunLib.instance.tianzuo_QiankunInt_initialize(qiankun);
        if (error_code != Qiankun_error_code.Qiankun_errorcode_success.getValue()) {
            System.out.printf("tianzuo_QiankunInt_initialize error: %d\n", error_code);
            return;
        }

        // 创建数据库 create database
        String db_file_name = "qiankunDataBase.Ztz";
        String db_password = "password";
        error_code = tianzuo_QiankunLib.instance.tianzuo_QiankunInt_db_create_database(qiankun, db_file_name, db_password, "qiankunDataBase", true);
        if (error_code != Qiankun_error_code.Qiankun_errorcode_success.getValue()) {
            System.out.printf("tianzuo_QiankunInt_db_create_database error: %d\n", error_code);
            return;
        }

        // 打开数据库 open database
        error_code = tianzuo_QiankunLib.instance.tianzuo_QiankunInt_db_open_database(qiankun, db_file_name, db_password);
        if (error_code != Qiankun_error_code.Qiankun_errorcode_success.getValue()) {
            System.out.printf("tianzuo_QiankunInt_db_open_database error: %d\n", error_code);
            return;
        }

        // 向数据库写入一个整型数据 writes an integer to the database
        int intInt = 12345678;
        error_code = tianzuo_QiankunLib.instance.tianzuo_QiankunInt_data_int_combine(qiankun, db_file_name, db_password, "integer", "", intInt);
        if (error_code != Qiankun_error_code.Qiankun_errorcode_success.getValue()) {
            System.out.printf("tianzuo_QiankunInt_data_int_combine error: %d\n", error_code);
            return;
        }

        // 读取刚写入的数据 read the data just written
        int[] return_data = {0};
        error_code = tianzuo_QiankunLib.instance.tianzuo_QiankunInt_data_int_extract(qiankun, db_file_name, db_password, "integer", return_data);
        if (error_code != Qiankun_error_code.Qiankun_errorcode_success.getValue()) {
            System.out.printf("tianzuo_QiankunInt_data_int_extract error: %d\n", error_code);
            return;
        }

        System.out.printf("get int: %d\n", return_data[0]);

        // 关闭数据库 close database
        error_code = tianzuo_QiankunLib.instance.tianzuo_QiankunInt_db_close_database(qiankun, db_file_name, db_password);
        if (error_code != Qiankun_error_code.Qiankun_errorcode_success.getValue()) {
            System.out.printf("tianzuo_QiankunInt_db_close_database error: %d\n", error_code);
            return;
        }

        System.out.printf("test done -------------------\n");

        tianzuo_QiankunLib.instance.tianzuo_QiankunInterface_terminate(qiankun);
    }
}

csharp

using System.Runtime.InteropServices;

public enum Qiankun_error_code
{
    Qiankun_errorcode_success       = 0x00000001,              ///<  正确的值
    Qiankun_errorcode_normal        = 0x00000002,              ///<  错误的值
    Qiankun_errorcode_differ        = 0x00000003,              ///<  数据库文件数效验未通过 (The number of database files fails to be verified)
    Qiankun_errorcode_no_rights     = 0x00000004,              ///<  数据库密码效验未通过 (The database password verification failed)
    Qiankun_errorcode_db_not_exist  = 0x00000005,              ///<  数据库文件不存在 (The database file does not exist)
    Qiankun_errorcode_exist         = 0x00000006,              ///<  数据已存在 (Data already exists)
    Qiankun_errorcode_not_exist     = 0x00000007,              ///<  数据不存在 (Data does not exist)
    Qiankun_errorcode_out_of_range  = 0x00000008,              ///<  超出范围 (out of range)
    Qiankun_errorcode_type          = 0x00000009,              ///<  类型不符 (wrong type)
    Qiankun_errorcode_param         = 0x0000000A,              ///<  参数错误 (parameter error)
    Qiankun_errorcode_compress      = 0x0000000B,              ///<  压缩错误 (compression error)
    Qiankun_errorcode_get_array     = 0x0000000C,              ///<  数组错误 (arrary error)
    Qiankun_errorcode_out_of_memory = 0x0000000D,              ///<  内存溢出 (memory overflow)
    Qiankun_errorcode_handle        = 0x0000000E,              ///<  句柄错误 (error handle)
    Qiankun_errorcode_io            = 0x0000000F,              ///<  IO错误 (io error)
}

class Program {
    [DllImport("tianzuo.Qiankun.dll")]
    public static extern IntPtr tianzuo_QiankunInterface_initialize();
    [DllImport("tianzuo.Qiankun.dll")]
    public static extern void tianzuo_QiankunInterface_terminate(IntPtr qiankun);
    [DllImport("tianzuo.Qiankun.dll")]
    public static extern int tianzuo_QiankunInt_initialize(IntPtr qiankun);
    [DllImport("tianzuo.Qiankun.dll")]
    public static extern int tianzuo_QiankunInt_db_create_database(IntPtr qiankun, string db_file_name, string db_password, string db_name, bool over_write);
    [DllImport("tianzuo.Qiankun.dll")]
    public static extern int tianzuo_QiankunInt_db_open_database(IntPtr qiankun, string db_file_name, string db_password);
    [DllImport("tianzuo.Qiankun.dll")]
    public static extern int tianzuo_QiankunInt_db_close_database(IntPtr qiankun, string db_file_name, string db_password);
    [DllImport("tianzuo.Qiankun.dll")]
    public static extern int tianzuo_QiankunInt_data_int_combine(IntPtr qiankun, string db_file_name, string db_password, string data_name, string remark, int data);
    [DllImport("tianzuo.Qiankun.dll")]
    public static extern int tianzuo_QiankunInt_data_int_extract(IntPtr qiankun, string db_file_name, string db_password, string data_name, ref int data);
    
    static void Main(string[] args) {
        // 初始化接口 initialize the interface
        Console.WriteLine("initialize the interface\n");

        // 创建实例 create an instance
        IntPtr qiankun = tianzuo_QiankunInterface_initialize();
        int error_code = tianzuo_QiankunInt_initialize(qiankun);
        if (error_code != ((int)Qiankun_error_code.Qiankun_errorcode_success))
        {
            Console.WriteLine("tianzuo_QiankunInt_initialize error:" + error_code);
            return;
        }

        // 创建数据库 create database
        string db_file_name = "qiankunDataBase.Ztz";
        string db_password = "password";
        error_code = tianzuo_QiankunInt_db_create_database(qiankun, db_file_name, db_password, "qiankunDataBase", true);
        if (error_code != ((int)Qiankun_error_code.Qiankun_errorcode_success))
        {
            Console.WriteLine("tianzuo_QiankunInt_db_create_database error:" + error_code);
            return;
        }

        // 打开数据库 open database
        error_code = tianzuo_QiankunInt_db_open_database(qiankun, db_file_name, db_password);
        if (error_code != ((int)Qiankun_error_code.Qiankun_errorcode_success)) {
            Console.WriteLine("tianzuo_QiankunInt_db_open_database error:" + error_code);
            return;
        }

        // 向数据库写入一个整型数据 writes an integer to the database
        int intInt = 12345678;
        error_code = tianzuo_QiankunInt_data_int_combine(qiankun, db_file_name, db_password, "integer", "", intInt);
        if (error_code != ((int)Qiankun_error_code.Qiankun_errorcode_success))
        {
            Console.WriteLine("tianzuo_QiankunInt_data_int_combine error:" + error_code);
            return;
        }

        // 读取刚写入的数据 read the data just written
        int return_data = 0;
        error_code = tianzuo_QiankunInt_data_int_extract(qiankun, db_file_name, db_password, "integer", ref return_data);
        if (error_code != ((int)Qiankun_error_code.Qiankun_errorcode_success))
        {
            Console.WriteLine("tianzuo_QiankunInt_data_int_extract error:" + error_code);
            return;
        }

        Console.WriteLine("get int: " + return_data);

        // 关闭数据库 close database
        error_code = tianzuo_QiankunInt_db_close_database(qiankun, db_file_name, db_password);
        if (error_code != ((int)Qiankun_error_code.Qiankun_errorcode_success))
        {
            Console.WriteLine("tianzuo_QiankunInt_db_close_database error:" + error_code);
            return;
        }

        Console.WriteLine("test done -------------------\n");

        tianzuo_QiankunInterface_terminate(qiankun);

    }

}

javascript

Qiankun_errorcode_success           = 0x00000001;   ///<  正确的值
Qiankun_errorcode_normal            = 0x00000002;   ///<  错误的值
Qiankun_errorcode_differ            = 0x00000003;   ///<  数据库文件数效验未通过 (The number of database files fails to be verified)
Qiankun_errorcode_no_rights         = 0x00000004;   ///<  数据库密码效验未通过 (The database password verification failed)
Qiankun_errorcode_db_not_exist      = 0x00000005;   ///<  数据库文件不存在 (The database file does not exist)
Qiankun_errorcode_exist             = 0x00000006;   ///<  数据已存在 (Data already exists)
Qiankun_errorcode_not_exist         = 0x00000007;   ///<  数据不存在 (Data does not exist)
Qiankun_errorcode_out_of_range      = 0x00000008;   ///<  超出范围 (out of range)
Qiankun_errorcode_type              = 0x00000009;   ///<  类型不符 (wrong type)
Qiankun_errorcode_param             = 0x0000000A;   ///<  参数错误 (parameter error)
Qiankun_errorcode_compress          = 0x0000000B;   ///<  压缩错误 (compression error)
Qiankun_errorcode_get_array         = 0x0000000C;   ///<  数组错误 (arrary error)
Qiankun_errorcode_out_of_memory     = 0x0000000D;   ///<  内存溢出 (memory overflow)
Qiankun_errorcode_handle            = 0x0000000E;   ///<  句柄错误 (error handle)
Qiankun_errorcode_io                = 0x0000000F;   ///<  IO错误 (io error)

let ffi = require('ffi-napi')
const ref = require('ref-napi');

let tianzuo_QiankunLib = ffi.Library("tianzuo.Qiankun.dll", {
    'tianzuo_QiankunInterface_initialize': ['pointer', []],
    'tianzuo_QiankunInterface_terminate':['void',['pointer']],
    'tianzuo_QiankunInt_initialize':['int',['pointer']],
    'tianzuo_QiankunInt_db_create_database':['int',['pointer','string','string','string', 'bool']],
    'tianzuo_QiankunInt_db_open_database':['int',['pointer', 'string', 'string']],
    'tianzuo_QiankunInt_db_close_database':['int',['pointer', 'string', 'string']],
    'tianzuo_QiankunInt_data_int_combine':['int',['pointer','string','string','string', 'string', 'int']],
    'tianzuo_QiankunInt_data_int_extract':['int',['pointer','string','string','string', 'pointer']],
})


// 初始化接口 initialize the interface
console.log("initialize the interface\n");

// 创建实例 create an instance
let qiankun = tianzuo_QiankunLib.tianzuo_QiankunInterface_initialize();
let error_code = tianzuo_QiankunLib.tianzuo_QiankunInt_initialize(qiankun);
if (error_code !== Qiankun_errorcode_success) {
    console.log("tianzuo_QiankunInt_initialize error: %d\n", error_code);
    return;
}

// 创建数据库 create database
let db_file_name = "qiankunDataBase.Ztz";
let db_password = "password";
error_code = tianzuo_QiankunLib.tianzuo_QiankunInt_db_create_database(qiankun, db_file_name, db_password, "qiankunDataBase", true);
if (error_code !== Qiankun_errorcode_success) {
    console.log("tianzuo_QiankunInt_db_create_database error: %d\n", error_code);
    return;
}

// 打开数据库 open database
error_code = tianzuo_QiankunLib.tianzuo_QiankunInt_db_open_database(qiankun, db_file_name, db_password);
if (error_code !== Qiankun_errorcode_success) {
    console.log("tianzuo_QiankunInt_db_open_database error: %d\n", error_code);
    return;
}

// 向数据库写入一个整型数据 writes an integer to the database
let intInt = 12345678;
error_code = tianzuo_QiankunLib.tianzuo_QiankunInt_data_int_combine(qiankun, db_file_name, db_password, "integer", "", intInt);
if (error_code !== Qiankun_errorcode_success) {
    console.log("tianzuo_QiankunInt_data_int_combine error: %d\n", error_code);
    return;
}

// 读取刚写入的数据 read the data just written
return_buf = Buffer.alloc(1 * ref.sizeof.int);
error_code = tianzuo_QiankunLib.tianzuo_QiankunInt_data_int_extract(qiankun, db_file_name, db_password, "integer", return_buf);
if (error_code !== Qiankun_errorcode_success) {
    console.log("tianzuo_QiankunInt_data_int_extract error: %d\n", error_code);
    return;
}

return_data = ref.get(return_buf, 0, ref.types.int);
console.log("get int: %d\n", return_data);

// 关闭数据库 close database
error_code = tianzuo_QiankunLib.tianzuo_QiankunInt_db_close_database(qiankun, db_file_name, db_password);
if (error_code !== Qiankun_errorcode_success) {
    console.log("tianzuo_QiankunInt_db_close_database error: %d\n", error_code);
   return;
}

console.log("test done -------------------\n");

tianzuo_QiankunLib.tianzuo_QiankunInterface_terminate(qiankun);

php

<?php

// 检查是否加载了 FFI 扩展
if (extension_loaded('ffi')) {
    echo("已启用 FFI 扩展\n");
} else {
    die("未启动 FFI 扩展\n");
}

enum Qiankun_error_code
{
const Qiankun_errorcode_success       = 0x00000001;            ///<  正确的值
const Qiankun_errorcode_normal        = 0x00000002;            ///<  错误的值
const Qiankun_errorcode_differ        = 0x00000003;            ///<  数据库文件数效验未通过 (The number of database files fails to be verified)
const Qiankun_errorcode_no_rights     = 0x00000004;            ///<  数据库密码效验未通过 (The database password verification failed)
const Qiankun_errorcode_db_not_exist  = 0x00000005;            ///<  数据库文件不存在 (The database file does not exist)
const Qiankun_errorcode_exist         = 0x00000006;            ///<  数据已存在 (Data already exists)
const Qiankun_errorcode_not_exist     = 0x00000007;            ///<  数据不存在 (Data does not exist)
const Qiankun_errorcode_out_of_range  = 0x00000008;            ///<  超出范围 (out of range)
const Qiankun_errorcode_type          = 0x00000009;            ///<  类型不符 (wrong type)
const Qiankun_errorcode_param         = 0x0000000A;            ///<  参数错误 (parameter error)
const Qiankun_errorcode_compress      = 0x0000000B;            ///<  压缩错误 (compression error)
const Qiankun_errorcode_get_array     = 0x0000000C;            ///<  数组错误 (arrary error)
const Qiankun_errorcode_out_of_memory = 0x0000000D;            ///<  内存溢出 (memory overflow)
const Qiankun_errorcode_handle        = 0x0000000E;            ///<  句柄错误 (error handle)
const Qiankun_errorcode_io            = 0x0000000F;            ///<  IO错误 (io error)
}

$ffi = FFI::cdef("
    void* tianzuo_QiankunInterface_initialize();
    void tianzuo_QiankunInterface_terminate(void* *QiankunInt_pointer);
    int tianzuo_QiankunInt_initialize(void* QiankunInt_pointer);
    int tianzuo_QiankunInt_db_create_database(void* QiankunInt_pointer, const char* db_file_name, const char* db_password, const char* db_name, bool const over_write);
    int tianzuo_QiankunInt_db_open_database(void* QiankunInt_pointer, const char* db_file_name, const char* db_password);
    int tianzuo_QiankunInt_db_close_database(void* QiankunInt_pointer, const char* db_file_name, const char* db_password);
    int tianzuo_QiankunInt_data_int_combine(void* QiankunInt_pointer, const char* db_file_name, const char* db_password, const char* data_name, const char* remark, int data);
    int tianzuo_QiankunInt_data_int_extract(void* QiankunInt_pointer, const char* db_file_name, const char* db_password, const char* data_name, int* data);
", "tianzuo.Qiankun.dll");

# 初始化接口 initialize the interface
echo "initialize the interface" . "\n";

# 创建实例 create an instance
$qiankun = $ffi->tianzuo_QiankunInterface_initialize();

$error_code = $ffi->tianzuo_QiankunInt_initialize($qiankun);
if ($error_code != Qiankun_error_code::Qiankun_errorcode_success) {
    echo "initialize error: " . $error_code . "\n";
    return;
}

# 创建数据库 create database
$db_file_name = "qiankunDataBase.Ztz";
$db_password = "password";
$error_code = $ffi->tianzuo_QiankunInt_db_create_database($qiankun, $db_file_name, $db_password, "qiankunDataBase", true);
if ($error_code != Qiankun_error_code::Qiankun_errorcode_success) {
    echo "tianzuo_QiankunInt_db_create_database error: " . $error_code . "\n";
    return;
}

# 打开数据库 open database
$error_code = $ffi->tianzuo_QiankunInt_db_open_database($qiankun, $db_file_name, $db_password);
if ($error_code != Qiankun_error_code::Qiankun_errorcode_success) {
    echo "tianzuo_QiankunInt_db_open_database error: " . $error_code . "\n";
    return;
}

# 向数据库写入一个整型数据 writes an integer to the database
$intInt = 12345678;
$error_code = $ffi->tianzuo_QiankunInt_data_int_combine($qiankun, $db_file_name, $db_password, "integer", "", $intInt);
if ($error_code != Qiankun_error_code::Qiankun_errorcode_success) {
    echo "tianzuo_QiankunInt_data_int_combine error: " . $error_code . "\n";
    return;
}

# 读取刚写入的数据 read the data just written
$return_data = FFI::new("int");
$error_code = $ffi->tianzuo_QiankunInt_data_int_extract($qiankun, $db_file_name, $db_password, "integer", FFI::addr($return_data));
if ($error_code != Qiankun_error_code::Qiankun_errorcode_success) {
    echo "tianzuo_QiankunInt_data_int_extract error: " . $error_code . "\n";
    return;
}

echo "get integer data: " . $return_data->cdata . "\n";

# 关闭数据库 close database
$error_code = $ffi->tianzuo_QiankunInt_db_close_database($qiankun, $db_file_name, $db_password);
if ($error_code != Qiankun_error_code::Qiankun_errorcode_success) {
    echo "tianzuo_QiankunInt_db_close_database error: " . $error_code . "\n";
    return;
}

echo "test done -------------------" . "\n";

?>

vb

Imports System.Runtime.InteropServices

Enum Qiankun_error_code
    Qiankun_errorcode_success = 1                     '  正确的值
    Qiankun_errorcode_normal = 2                      '  错误的值
    Qiankun_errorcode_differ = 3                      '  数据库文件数效验未通过 (The number Of database files fails To be verified)
    Qiankun_errorcode_no_rights = 4                   '  数据库密码效验未通过 (The database password verification failed)
    Qiankun_errorcode_db_not_exist = 5                '  数据库文件不存在 (The database file does Not exist)
    Qiankun_errorcode_exist = 6                       '  数据已存在 (Data already exists)
    Qiankun_errorcode_not_exist = 7                   '  数据不存在 (Data does Not exist)
    Qiankun_errorcode_out_of_range = 8                '  超出范围 (out Of range)
    Qiankun_errorcode_type = 9                        '  类型不符 (wrong type)
    Qiankun_errorcode_param = 10                      '  参数错误 (parameter Error)
    Qiankun_errorcode_compress = 11                   '  压缩错误 (compression Error)
    Qiankun_errorcode_get_array = 12                  '  数组错误 (arrary Error)
    Qiankun_errorcode_out_of_memory = 13              '  内存溢出 (memory overflow)
    Qiankun_errorcode_handle = 14                     '  句柄错误 (Error handle)
    Qiankun_errorcode_io = 15                         '  IO错误 (io Error)
End Enum

Module Program
    <DllImport("tianzuo.Qiankun.dll")>
    Public Function tianzuo_QiankunInterface_initialize() As IntPtr
    End Function
    <DllImport("tianzuo.Qiankun.dll")>
    Public Function tianzuo_QiankunInterface_terminate(ByRef QiankunInt_pointer As IntPtr)
    End Function
    <DllImport("tianzuo.Qiankun.dll")>
    Public Function tianzuo_QiankunInt_initialize(QiankunInt_pointer As IntPtr) As Integer
    End Function
    <DllImport("tianzuo.Qiankun.dll")>
    Public Function tianzuo_QiankunInt_db_create_database(QiankunInt_pointer As IntPtr, db_file_name As String, db_password As String, db_name As String, over_write As Boolean) As Integer
    End Function
    <DllImport("tianzuo.Qiankun.dll")>
    Public Function tianzuo_QiankunInt_db_open_database(QiankunInt_pointer As IntPtr, db_file_name As String, db_password As String) As Integer
    End Function
    <DllImport("tianzuo.Qiankun.dll")>
    Public Function tianzuo_QiankunInt_db_close_database(QiankunInt_pointer As IntPtr, db_file_name As String, db_password As String) As Integer
    End Function
    <DllImport("tianzuo.Qiankun.dll")>
    Public Function tianzuo_QiankunInt_data_int_combine(QiankunInt_pointer As IntPtr, db_file_name As String, db_password As String, data_name As String, remark As String, data As Integer) As Integer
    End Function
    <DllImport("tianzuo.Qiankun.dll")>
    Public Function tianzuo_QiankunInt_data_int_extract(QiankunInt_pointer As IntPtr, db_file_name As String, db_password As String, data_name As String, ByRef data As Integer) As Integer
    End Function

    Sub Main(args As String())
        ' 初始化接口 initialize the interface
        Console.WriteLine("initialize the interface")

        ' 创建实例 create an instance
        Dim qiankun As IntPtr = tianzuo_QiankunInterface_initialize()
        Dim error_code As Integer = tianzuo_QiankunInt_initialize(qiankun)
        If (error_code <> Qiankun_error_code.Qiankun_errorcode_success) Then
            Console.WriteLine("tianzuo_QiankunInt_initialize error:" + error_code.ToString)
            Return
        End If

        ' 创建数据库 create database
        Dim db_file_name As String = "qiankunDataBase.Ztz"
        Dim db_password As String = "password"
        error_code = tianzuo_QiankunInt_db_create_database(qiankun, db_file_name, db_password, "qiankunDataBase", True)
        If (error_code <> Qiankun_error_code.Qiankun_errorcode_success) Then
            Console.WriteLine("tianzuo_QiankunInt_db_create_database error:" + error_code.ToString)
            Return
        End If

        ' 打开数据库 open database
        error_code = tianzuo_QiankunInt_db_open_database(qiankun, db_file_name, db_password)
        If (error_code <> Qiankun_error_code.Qiankun_errorcode_success) Then
            Console.WriteLine("tianzuo_QiankunInt_db_open_database error:" + error_code.ToString)
            Return
        End If

        ' 向数据库写入一个整型数据 writes an integer to the database
        Dim intInt As Integer = 12345678
        error_code = tianzuo_QiankunInt_data_int_combine(qiankun, db_file_name, db_password, "integer", "", intInt)
        If (error_code <> Qiankun_error_code.Qiankun_errorcode_success) Then
            Console.WriteLine("tianzuo_QiankunInt_data_int_combine error:" + error_code.ToString)
            Return
        End If

        ' 读取刚写入的数据 read the data just written
        Dim return_data As Integer = 0
        error_code = tianzuo_QiankunInt_data_int_extract(qiankun, db_file_name, db_password, "integer", return_data)
        If (error_code <> Qiankun_error_code.Qiankun_errorcode_success) Then
            Console.WriteLine("tianzuo_QiankunInt_data_int_extract error:" + error_code.ToString)
            Return
        End If

        Console.WriteLine("get int: " + return_data.ToString)

        ' 关闭数据库 close database
        error_code = tianzuo_QiankunInt_db_close_database(qiankun, db_file_name, db_password)
        If (error_code <> Qiankun_error_code.Qiankun_errorcode_success) Then
            Console.WriteLine("tianzuo_QiankunInt_db_close_database error:" + error_code.ToString)
            Return
        End If

        Console.WriteLine("test done -------------------")

    End Sub
End Module

go

package main

/*
#include "tianzuo.QiankunInterface.h"
*/
import "C"
import (
	"fmt"
	"syscall"
	"unsafe"
)

const (
	Qiankun_errorcode_success       = 1  //  正确的值
	Qiankun_errorcode_normal        = 2  //  错误的值
	Qiankun_errorcode_differ        = 3  //  数据库文件数效验未通过 (The number Of database files fails To be verified)
	Qiankun_errorcode_no_rights     = 4  //  数据库密码效验未通过 (The database password verification failed)
	Qiankun_errorcode_db_not_exist  = 5  //  数据库文件不存在 (The database file does Not exist)
	Qiankun_errorcode_exist         = 6  //  数据已存在 (Data already exists)
	Qiankun_errorcode_not_exist     = 7  //  数据不存在 (Data does Not exist)
	Qiankun_errorcode_out_of_range  = 8  //  超出范围 (out Of range)
	Qiankun_errorcode_type          = 9  //  类型不符 (wrong type)
	Qiankun_errorcode_param         = 10 //  参数错误 (parameter Error)
	Qiankun_errorcode_compress      = 11 //  压缩错误 (compression Error)
	Qiankun_errorcode_get_array     = 12 //  数组错误 (arrary Error)
	Qiankun_errorcode_out_of_memory = 13 //  内存溢出 (memory overflow)
	Qiankun_errorcode_handle        = 14 //  句柄错误 (Error handle)
	Qiankun_errorcode_io            = 15 //  IO错误 (io Error)
)

func main() {
	// 初始化接口 initialize the interface
	dll := syscall.MustLoadDLL("tianzuo.Qiankun.dll")

	// 创建实例 create an instance
	tianzuo_QiankunInterface_initialize := dll.MustFindProc("tianzuo_QiankunInterface_initialize")
	qiankun, _, _ := tianzuo_QiankunInterface_initialize.Call()

	tianzuo_QiankunInt_initialize := dll.MustFindProc("tianzuo_QiankunInt_initialize")
	error_code, _, _ := tianzuo_QiankunInt_initialize.Call(qiankun)
	if error_code != Qiankun_errorcode_success {
		fmt.Println("tianzuo_QiankunInt_initialize error: ", error_code)
	}

	// 创建数据库 create database
	db_file_name := C.CString("qiankunDataBase.Ztz")
	db_password := C.CString("password")
	tianzuo_QiankunInt_db_create_database := dll.MustFindProc("tianzuo_QiankunInt_db_create_database")
	error_code, _, _ = tianzuo_QiankunInt_db_create_database.Call(qiankun, uintptr(unsafe.Pointer(db_file_name)), uintptr(unsafe.Pointer(db_password)), uintptr(unsafe.Pointer(C.CString("qiankunDataBase"))), 1)
	if error_code != Qiankun_errorcode_success {
		fmt.Println("tianzuo_QiankunInt_db_create_database error: ", error_code)
	}

	// 打开数据库 open database
	tianzuo_QiankunInt_db_open_database := dll.MustFindProc("tianzuo_QiankunInt_db_open_database")
	error_code, _, _ = tianzuo_QiankunInt_db_open_database.Call(qiankun, uintptr(unsafe.Pointer(db_file_name)), uintptr(unsafe.Pointer(db_password)))
	if error_code != Qiankun_errorcode_success {
		fmt.Println("tianzuo_QiankunInt_db_open_database error: ", error_code)
	}

	// 向数据库写入一个整型数据 writes an integer to the database
	intInt := C.int(12345678)
	tianzuo_QiankunInt_data_int_combine := dll.MustFindProc("tianzuo_QiankunInt_data_int_combine")
	error_code, _, _ = tianzuo_QiankunInt_data_int_combine.Call(qiankun, uintptr(unsafe.Pointer(db_file_name)), uintptr(unsafe.Pointer(db_password)), uintptr(unsafe.Pointer(C.CString("integer"))), uintptr(unsafe.Pointer(C.CString(""))), uintptr(intInt))
	if error_code != Qiankun_errorcode_success {
		fmt.Println("tianzuo_QiankunInt_data_int_combine error: ", error_code)
	}

	// 读取刚写入的数据 read the data just written
	return_int := C.int(0)
	tianzuo_QiankunInt_data_int_extract := dll.MustFindProc("tianzuo_QiankunInt_data_int_extract")
	error_code, _, _ = tianzuo_QiankunInt_data_int_extract.Call(qiankun, uintptr(unsafe.Pointer(db_file_name)), uintptr(unsafe.Pointer(db_password)), uintptr(unsafe.Pointer(C.CString("integer"))), uintptr(unsafe.Pointer(&return_int)))
	if error_code != Qiankun_errorcode_success {
		fmt.Println("tianzuo_QiankunInt_data_int_extract error: ", error_code)
	}

	fmt.Println("get integer data: ", return_int)

	// 关闭数据库 close database
	tianzuo_QiankunInt_db_close_database := dll.MustFindProc("tianzuo_QiankunInt_db_close_database")
	error_code, _, _ = tianzuo_QiankunInt_db_close_database.Call(qiankun, uintptr(unsafe.Pointer(db_file_name)), uintptr(unsafe.Pointer(db_password)))
	if error_code != Qiankun_errorcode_success {
		fmt.Println("tianzuo_QiankunInt_db_close_database error: ", error_code)
	}

	fmt.Println("test done -------------------")
}

rust

use std::os::raw::c_char;
use std::ffi::{c_int};
use std::ffi::CString;
use std::ptr::null;

#[link(name = "tianzuo.Qiankun")]
extern {
    fn tianzuo_QiankunInterface_initialize() -> *mut std::ffi::c_void;
    fn tianzuo_QiankunInterface_terminate(obj: *mut std::ffi::c_void);
    fn tianzuo_QiankunInt_initialize(obj: *mut std::ffi::c_void) -> c_int;
    fn tianzuo_QiankunInt_db_create_database(obj: *mut std::ffi::c_void, db_file_name: *const c_char, db_password: *const c_char, db_name: *const c_char, over_write: c_int) -> c_int;
    fn tianzuo_QiankunInt_db_open_database(obj: *mut std::ffi::c_void, db_file_name: *const c_char, db_password: *const c_char) -> c_int;
    fn tianzuo_QiankunInt_db_close_database(obj: *mut std::ffi::c_void, db_file_name: *const c_char, db_password: *const c_char) -> c_int;
    fn tianzuo_QiankunInt_data_int_combine(obj: *mut std::ffi::c_void, db_file_name: *const c_char, db_password: *const c_char, data_name: *const c_char, remark: *const c_char, data: c_int) -> c_int;
    fn tianzuo_QiankunInt_data_int_extract(obj: *mut std::ffi::c_void, db_file_name: *const c_char, db_password: *const c_char, data_name: *const c_char, data: *const c_int) -> c_int;
}

fn main() {
    unsafe {
        // 初始化接口 initialize the interface
        println!("initialize the interface");

        // 创建实例 create an instance
        let qiankun = tianzuo_QiankunInterface_initialize();
        let error_code = tianzuo_QiankunInt_initialize(qiankun);
        if 1 != error_code {
            println!("initialize error: {:?}", error_code);
        }

        // 创建数据库 create database
        let db_file_name = CString::new(String::from("qiankunDataBase.Ztz")).expect("Failed to create CString");
        let db_password = CString::new(String::from("password")).expect("Failed to create CString");
        let db_name = CString::new(String::from("qiankunDataBase")).expect("Failed to create CString");
        let error_code = tianzuo_QiankunInt_db_create_database(qiankun, db_file_name.as_ptr(), db_password.as_ptr(), db_name.as_ptr(), 1);
        if 1 != error_code {
            println!("db_create_database error: {:?}", error_code);
        }

        // 打开数据库 open database
        let error_code = tianzuo_QiankunInt_db_open_database(qiankun, db_file_name.as_ptr(), db_password.as_ptr());
        if 1 != error_code {
            println!("db_open_database error: {:?}", error_code);
        }

        // 向数据库写入一个整型数据 writes an integer to the database
        let int = 12345678;
        let data_name = CString::new(String::from("integer")).expect("Failed to create CString");
        let error_code = tianzuo_QiankunInt_data_int_combine(qiankun, db_file_name.as_ptr(), db_password.as_ptr(), data_name.as_ptr(), null(), int);
        if 1 != error_code {
            println!("data_combine error: {:?}", error_code);
        }

        // 读取刚写入的数据 read the data just written
        let mut return_data: c_int = 0;
        let error_code = tianzuo_QiankunInt_data_int_extract(qiankun, db_file_name.as_ptr(), db_password.as_ptr(), data_name.as_ptr(), &mut return_data);
        if 1 != error_code {
            println!("data_extract error: {:?}", error_code);
        }

        println!("get integer data: {:?}", return_data);

        // 关闭数据库 close database
        let error_code = tianzuo_QiankunInt_db_close_database(qiankun, db_file_name.as_ptr(), db_password.as_ptr());
        if 1 != error_code {
            println!("db_close_database error: {:?}", error_code);
        }

        println!("test done -------------------")
    }
}

ruby

require 'fiddle'

lib = Fiddle::dlopen('C:/Users/zhengtianzuo/RubymineProjects/tianzuo.QiankunTest/tianzuo.Qiankun.dll')
tianzuo_QiankunInterface_initialize = Fiddle::Function.new(lib['tianzuo_QiankunInterface_initialize'], [], Fiddle::TYPE_VOIDP)
tianzuo_QiankunInterface_terminate = Fiddle::Function.new(lib['tianzuo_QiankunInterface_terminate'], [Fiddle::TYPE_VOIDP], Fiddle::TYPE_VOID)
tianzuo_QiankunInt_initialize = Fiddle::Function.new(lib['tianzuo_QiankunInt_initialize'], [Fiddle::TYPE_VOIDP], Fiddle::TYPE_INT)
tianzuo_QiankunInt_db_create_database = Fiddle::Function.new(lib['tianzuo_QiankunInt_db_create_database'], [Fiddle::TYPE_VOIDP, Fiddle::TYPE_VOIDP, Fiddle::TYPE_VOIDP, Fiddle::TYPE_VOIDP, Fiddle::TYPE_INT], Fiddle::TYPE_INT)
tianzuo_QiankunInt_db_open_database = Fiddle::Function.new(lib['tianzuo_QiankunInt_db_open_database'], [Fiddle::TYPE_VOIDP, Fiddle::TYPE_VOIDP, Fiddle::TYPE_VOIDP], Fiddle::TYPE_INT)
tianzuo_QiankunInt_data_int_combine = Fiddle::Function.new(lib['tianzuo_QiankunInt_data_int_combine'], [Fiddle::TYPE_VOIDP, Fiddle::TYPE_VOIDP, Fiddle::TYPE_VOIDP, Fiddle::TYPE_VOIDP, Fiddle::TYPE_VOIDP, Fiddle::TYPE_INT], Fiddle::TYPE_INT)
tianzuo_QiankunInt_data_int_extract = Fiddle::Function.new(lib['tianzuo_QiankunInt_data_int_extract'], [Fiddle::TYPE_VOIDP, Fiddle::TYPE_VOIDP, Fiddle::TYPE_VOIDP, Fiddle::TYPE_VOIDP, Fiddle::TYPE_VOIDP], Fiddle::TYPE_INT)
tianzuo_QiankunInt_db_close_database = Fiddle::Function.new(lib['tianzuo_QiankunInt_db_close_database'], [Fiddle::TYPE_VOIDP, Fiddle::TYPE_VOIDP, Fiddle::TYPE_VOIDP], Fiddle::TYPE_INT)

# 初始化接口 initialize the interface
print("initialize the interface\n")

# 创建实例 create an instance
qiankun = tianzuo_QiankunInterface_initialize.call()
error_code = tianzuo_QiankunInt_initialize.call(qiankun)
if error_code != 1
  print("initialize error:", error_code, "\n")
  return
end

# 创建数据库 create database
db_file_name = "qiankunDataBase.Ztz"
db_password = "password"
error_code = tianzuo_QiankunInt_db_create_database.call(qiankun, db_file_name, db_password, "qiankunDataBase", 1)
if error_code != 1
  print("db_create_database error:", error_code, "\n")
  return
end

# 打开数据库 open database
error_code = tianzuo_QiankunInt_db_open_database.call(qiankun, db_file_name, db_password)
if error_code != 1
  print("db_open_database error:", error_code, "\n")
return
end

# 向数据库写入一个整型数据 writes an integer to the database
intInt = 12345678
error_code = tianzuo_QiankunInt_data_int_combine.call(qiankun, db_file_name, db_password, "integer", "", intInt)
if error_code != 1
  print("data_combine error:", error_code, "\n")
return
end

# 读取刚写入的数据 read the data just written
return_data = Fiddle::Pointer.malloc(Fiddle::SIZEOF_INT)
error_code = tianzuo_QiankunInt_data_int_extract.call(qiankun, db_file_name, db_password, "integer", return_data)
if error_code != 1
  print("data_extract error:", error_code, "\n")
return
end

integer = return_data[0, Fiddle::SIZEOF_INT].unpack('I')[0]
print("get integer data: ", integer, "\n")

# 关闭数据库 close database
error_code = tianzuo_QiankunInt_db_close_database.call(qiankun, db_file_name, db_password)
if error_code != 1
  print("db_close_database error:", error_code)
return
end

print("test done -------------------")

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