√ C#

√ C#

1. 类型转换分为显式类型转换和隐式类型转换，分别对应关键字explicit和implicit，后面加上关键字operator。
2. 实现类型转换的方法必须是public static的，且放在被转换的类中。

using System;namespace _06
{class Program{static void Main(string[] args){Test1 test1 = new Test1(1);Console.WriteLine("*****测试显式转换*****");Test2 test2 = (Test2)test1;Console.WriteLine($"test2.value = {test2.value}");Console.WriteLine();Console.WriteLine("*****测试显式转换*****");Test3 test3 = test1;Console.WriteLine($"test3.value = {test3.value}");Console.WriteLine();}}class Test1{public int value;public Test1(int value){this.value = value;}public static explicit operator Test2(Test1 test1){return new Test2(test1.value + 1);}public static implicit operator Test3(Test1 test1){return new Test3(test1.value + 2);}}class Test2{public int value;public Test2(int value){this.value = value;}}class Test3{public int value;public Test3(int value){this.value = value;}}
}