“System.Configuration.ConfigurationSettings.AppSettings”已过时---请高和解决
警告1“System.Configuration.ConfigurationSettings.AppSettings”已过时:“This method is obsolete, it has been replaced by System.Configuration!System.Configuration.ConfigurationManager.AppSettings”E:\n\3CMarketY\Mkt3C_Class\MailClass.cs19223Mkt3C_Class


[解决办法]
用他System.Configuration.ConfigurationManager.AppSettings代替啊
[解决办法]
没关系的．

新的方法是：
System.Configuration.ConfigurationManager.AppSettings