[ArgumentOutOfRangeException: 索引超出范围。必须为非负值并小于集合大小。
参数名: index]
System.Collections.ArrayList.get_Item(Int32 index) +14538231
studentArrayList.get_Item(Int32 i) in e:\web\netqdqs\App_Code\Class2.cs:180
b.Page_PreInit(Object sender, EventArgs e) in e:\web\netqdqs\b.aspx.cs:88
System.Web.UI.Page.OnPreInit(EventArgs e) +11692240
System.Web.UI.Page.PerformPreInit() +47
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +335
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