211103.md

c++ 结构体的嵌套以及数组

struct，自定义数据类型，可以存放不同数据类型

基本定义

#include<iostream>
#include<string>
using namespace std;

struct Student {
    string name;
    int age;
}s3; // 第三种定义

int main () {
    // 第一种
    Student s1;
    s1.name = "张三";
    s1.age = 24;
    cout << "s1的名字：" << s1.name << endl;
    cout << "s1的年纪：" << s1.age << endl;
    // 第二种
    Student s2 = {"李四", 25};
    cout << "s2的名字：" << s2.name << endl;
    cout << "s2的年纪：" << s2.age << endl;
    s3.name = "王五";
    s3.age = 26;
    // 第三种赋值
    cout << "s3的名字：" << s3.name << endl;
    cout << "s3的年纪：" << s3.age << endl;
    return 0;
}

结构体嵌套

#include<iostream>
#include<string>
using namespace std;

struct Student {
    string name;
    int age;
};

struct Teacher {
    string name;
    int age;
    struct Student std;
};

int main () {
    // 结构体赋值
    Teacher t1;
    t1.name = "张三";
    t1.age = 24;
    t1.std.name = "李四";
    t1.std.age = 10;
    return 0;
}

结构体数组

#include<iostream>
#include<string>
using namespace std;

struct Student {
    string name;
    int age;
};

int main () {
    // 定义
    Student s1[2] = {
        {"张三", 25},
        {"李四", 26},
    };
    // 赋值
    s1[0].name = "张一一"; 
    s1[0].age = 24; 
}