Specific methods of operating config files in C#

The following is the definition of app.config or web.config, which defines a parameter with the key Isinit and the value false
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< ;add key ="IsInit" value="false"/>
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The following are the method definitions for reading and writing config files:

Write:

internal void settingApp_write(string key, string val) 
 { 
     System.Configuration.Configuration config = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None); 
 config.AppSettings.Settings["IsInit"].Value = val; 
 config.Save(ConfigurationSaveMode.Modified); 
 ConfigurationManager.RefreshSection("appSettings"); 
 }

Read :

internal string settingApp_read(string key) 
{ 
    var val = ConfigurationManager.AppSettings[key]; 
    return val; 
}

Usage:

Write test:

settingApp_write("IsInit","true");

Take out test:

var setting = settingApp_read("Isinit");

The modifications at this level are Project-level config file modification is the operation of the config file in the Bin directory of your final program.

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