using System; namespace DemoConsole { class Program { static void Main(string[] args) { int intValue1, intValue2; long longValue1, longValue2; intValue1 = 123; longValue1 = 456; longValue2 = intValue1; // 隐式转换 intValue2 = (int)longValue1;// 显示转换 Console.WriteLine("{0} = {1}", intValue1, longValue2); Console.WriteLine("(int){0} = {1}", longValue1, intValue2); Console.Read(); } } }