System.NullReferenceException: 未将对象引用设置到对象的实例。
   at xjtvs060228.Global.StripHTML(String strHtml) in D:\myproject\xjtvs060228\Global.asax.cs:line 137
   at xjtvs060228.investigation.dc_ind03.settuijian() in D:\myproject\xjtvs060228\investigation\dc_ind03.aspx.cs:line 58