实现原理代码如下(对算法稍有了解都会明白原理的:)): using System;using System.Collections.Generic;using System.Collections;using System.Text; namespace DataStructureConsoleApplication{    class GenericProgram    {        //exchange the variables using the generic        static void Swap<T>(ref T val1, ref T val2)        {            T temp;            temp = val1;            val1 = val2;            val2 = temp;                }        static void Main(string[] args)        {            //assign the integer variables using the generic            int num1 = 100;            int num2 = 200;            Console.WriteLine("num1={0}",num1);            Console.WriteLine("num2={0}",num2);            Swap<int>(ref num1,ref num2);            Console.WriteLine("num1={0}", num1);            Console.WriteLine("num2={0}", num2);             //assign the string variables using the generic            string str1 = "goal";            string str2 = "bell";            Console.WriteLine("str1={0}" , str1);            Console.WriteLine("str2={0}" ,str2);            Swap<string>(ref str1,ref str2);            Console.WriteLine("str1={0}", str1);            Console.WriteLine("str2={0}", str2);                 }    }} 运行结果: num1=100 num2=200 num1=200 num2=100 str1=goal str2=bell str1=bell str2=goal  

评论