C#-StringBuilder类的使用---ShinePans

//StringBuilderusing System;using System.Text;class program{    static void Main()    {        int Num = 689;        StringBuilder SBuilder = new StringBuilder("ABCD", 100);        //实例化一个StringBuilder 对象,并且将其赋值为ABCD,初始长度为100        SBuilder.Append(")abcd.");  //"abcd"添加到结尾        Console.WriteLine("Step1:"+SBuilder);        SBuilder.AppendFormat("{0:C}", Num);  //{0:C}输出元符号        SBuilder.Insert(0, "software");  //将software添加到开头,索引为0处        Console.WriteLine("Step2:"+SBuilder);        SBuilder.Remove(14, SBuilder.Length - 14);  //删去指定字符        Console.WriteLine("Step3:"+SBuilder);        SBuilder.Replace("software", "--software replaced--"); //替换指定字符        Console.WriteLine("Step4:"+SBuilder);        Console.ReadLine();    }}