c#中System.Configuration.ConfigurationManager.AppSettings如何配置

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<AppSettings>
   <add key="config1" value="aaa" />
   <add key="config2" value="bbb" />
</AppSettings>

string str = System.Configuration.ConfigurationManager.AppSettings["config1"].ToString();//str等于aaa

string str1 = System.Configuration.ConfigurationManager.AppSettings["config2"].ToString();//str1等于bbb

string  settingValue = System.Configuration.ConfigurationManager.AppSettings.Get(“config1"); //获取config的值

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