[NullReferenceException: 未将对象引用设置到对象的实例。]
Web.showcouse.getCourse() in F:\中睿-工作\zmj\公司网站\trunk\NEWS\Web\showcouse.aspx.cs:104
Web.showcouse.Page_Load(Object sender, EventArgs e) in F:\中睿-工作\zmj\公司网站\trunk\NEWS\Web\showcouse.aspx.cs:29
System.Web.UI.Control.OnLoad(EventArgs e) +107
System.Web.UI.Control.LoadRecursive() +89
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1532
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