警告 1 “System.Configuration.ConfigurationSettings.AppSettings”已过时:“"This method is obsolete, it has been replaced by System.Configuration!System.Configuration.ConfigurationManager.AppSettings"” D:\C\ST_GinShopManage\App_Code\ST_PageBase.cs 47 21 D:\C\ST_GinShopManage\
将ConfigurationSettings改为：ConfigurationManager，再在文件内加入ConfigurationManager的引用：using System.Configuration;