插入操作,以 key-value 的形式向持久化存储区中插入数据。
命名空间:Neo.SmartContract.Framework.Services
程序集:Neo.SmartContract.Framework
Put(StorageContext context, byte[] key, ByteString value);
Put(StorageContext context, byte[] key, byte[] value);
Put(StorageContext context, byte[] key, BigInteger value);
Put(StorageContext context, ByteString key, ByteString value);
Put(StorageContext context, ByteString key, BigInteger value);
Put(StorageContext context, byte[] key, byte[] value, StorageFlags flags);
Put(StorageContext context, byte[] key, BigInteger value, StorageFlags flags);
Put(StorageContext context, ByteString key, BigInteger value, StorageFlags flags);
Put(StorageContext context, ByteString key, ByteString value, StorageFlags flags);
参数:
- context:存储上下文,StorageContext 类型;
- key:键,字节数组/字符串;最大长度64字节。
- value:值,字节数组/大整数/字符串。
- flags:StorageFlags 类型,标识存储的是变量还是常量
返回值:void。
public class Contract1 : SmartContract.Framework.SmartContract
{
public static void Main()
{
byte[] key1 = new byte[] { 0 };
string key2 = "aa";
byte[] value1 = new byte[] { 1 };
BigInteger value2 = new BigInteger("1");
string value3 = "bb";
Storage.Put(Storage.CurrentContext, key1, value1);
Storage.Put(Storage.CurrentContext, key1, value2);
Storage.Put(Storage.CurrentContext, key1, value3);
Storage.Put(Storage.CurrentContext, key2, value1);
Storage.Put(Storage.CurrentContext, key2, value2);
Storage.Put(Storage.CurrentContext, key2, value3);
}
}