代码为：

System.ArgumentOutOfRangeException: 索引超出范围。必须为非负值并小于集合大小。参数名: index at System.Collections.ArrayList.get_Item(Int32 index) at System.Collections.Specialized.NameObjectCollectionBase.BaseGet(Int32 index) at System.Collections.Specialized.NameValueCollection.Get(Int32 index) at System.Collections.Specialized.NameValueCollection.get_Item(Int32 index) at customer.tousu.info.WebBuyList.initPage() in E:\web_server\demo.shop7x24.cn\system\customer\tousu\info\WebTousuList.aspx.cs:line 76

如图：

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