函数重载
using System;using System.Collections.Generic;using System.Linq;using System.Text;namespace exam{ class Program { ////// 函数重载 /// 函数名相同,参数类型或者参数个数不同 /// /// static void Main(string[] args) { Sayhello("Tom"); Sayhello(20); Console.ReadKey(); } static void Sayhello(string name) { Console.WriteLine("hello,{0}",name); } static void Sayhello(int age) { Console.WriteLine("u age is{0}", age); } }}