C# .NET如何清空stringbuilder

就红色的代码可以：

 

System.Text.StringBuilder sb = new System.Text.StringBuilder();

sb.Append("hello");

sb.Append("world");

Response.Write("Length:" + sb.Length);

sb.Remove(0, sb.Length);//清空StringBuilder的方法

Response.Write("|" + sb.ToString() + "|");