C#操作XML配置文件

代码为C#操作xml配置文件的范例类，函数SetValue用于向配置文件写入一个值，GetValue用于根据Key获取相应值。这种方法的配置文件不需要手动创建，程序在运行后会自动处理创建。

注意：1.需要在解决方案上右键引用system.Configuration，并且要在单元头处using system.Configuration

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public class ConfigAppSettings     {         //写入值         public static void SetValue(String key, string value)         {             //             Configuration LocalConf = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None);             if (LocalConf.AppSettings.Settings[key] == null)             {                 LocalConf.AppSettings.Settings.Add(key, value);             }             else             {                 LocalConf.AppSettings.Settings[key].Value = value;             }             LocalConf.Save(ConfigurationSaveMode.Full);             ConfigurationManager.RefreshSection("appSettings");         }       //读取指定Key的值         public static string GetValue(string key)         {             Configuration LocalConf = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None);             if (LocalConf.AppSettings.Settings[key] == null)                 return "";             else                 return LocalConf.AppSettings.Settings[key].Value;         }     }