stringbuilder和string拼字符串的性能，有点吓人。

代码            System.Text.StringBuilder sb  =   new  System.Text.StringBuilder();             int  i  =   0 ;             long  StartTime  =  DateTime.Now.Ticks;             while  (i  <   80000 )            {                sb.Append(i.ToString());                i ++ ;            }             long  EndTime  =  DateTime.Now.Ticks;            Console.WriteLine( " 时间: "   +  (EndTime  -  StartTime)  +   " \t Capacity: "   +  sb.Capacity  +   " \t Length: "              +  sb.Length);             string  sb1  =   null ;            i  =   0 ;            StartTime  =  DateTime.Now.Ticks;             while  (i  <   80000 )            {                sb1  +=  i;                i ++ ;            }            EndTime  =  DateTime.Now.Ticks;            Console.WriteLine( " 时间: "   +  (EndTime  -  StartTime));            Console.Read();

 

转载于:https://www.cnblogs.com/renjuwht/archive/2010/01/03/1638235.html

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