c#怎么清空stringbuilder

Question

c#怎么清空stringbuilder

Answer 1

1\stringBuilder = null;//直接赋空值2\stringBuilder = new StringBuilder();//重新实例化对象，可再次使用3\stringBuilder.Dispose();//销毁对象4\using(StringBuilder stringBuilder = new StringBuilder){//自动销毁对象，用完即消//处理代码}