[ArgumentOutOfRangeException: 长度不能小于 0。
参数名: length]
System.String.Substring(Int32 startIndex, Int32 length) +12953464
viewchapter2.Page_Load(Object sender, EventArgs e) in d:\wwwroot\qacn_www\wwwroot\viewchapter.aspx.cs:99
System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +52
System.Web.UI.Control.OnLoad(EventArgs e) +97
System.Web.UI.Control.LoadRecursive() +61
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +693
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