C#实现.ini文件读写操作

1、ini文件是什么？

       见百度百科：https://baike.baidu.com/item/ini%E6%96%87%E4%BB%B6/9718973?fr=aladdin

2、C#语言实现ini文件的读写操作

  /// <summary>
     /// 配置文件 .ini操作类
     /// </summary>
     public class IniFileUtils
     {
         /// <summary>
         /// 写入INI文件
         /// </summary>
         /// <param name="section">节点名称[如TypeName]</param>
         /// <param name="key">键</param>
         /// <param name="val">值</param>
         /// <param name="filepath">文件路径</param>
         /// <returns></returns>
         [DllImport("kernel32")]
         private static extern long WritePrivateProfileString(string section, string key, string val, string filepath);
         /// <summary>
         /// 读取INI文件
         /// </summary>
         /// <param name="section">节点名称</param>
         /// <param name="key">键</param>
         /// <param name="def">值</param>
         /// <param name="retval">stringbulider对象</param>
         /// <param name="size">字节大小</param>
         /// <param name="filePath">文件路径</param>
         /// <returns></returns>
         [DllImport("kernel32")]
         private static extern int GetPrivateProfileString(string section, string key, string def, StringBuilder retval, int size, string filePath);

         /// <summary>
         /// 写入或更新.ini配置文件属性值
         /// </summary>
         /// <param name="section">区域（节点）</param>
         /// <param name="key">key键属性名称</param>
         /// <param name="value">key键对应属性值param>
         /// <param name="path">.ini文件所在路径</param>
         public static void WriteContentValue(string section, string key, string value, string path)
         {
             //判断文件是或否存在
             if (File.Exists(path))
             {
                 WritePrivateProfileString(section, key, value, path);
             }
         }

         /// <summary>
         /// 读取.ini配置文件属性值
         /// </summary>
         /// <param name="Section">区域(节点)</param>
         /// <param name="key">key键属性名称</param>
         /// <param name="path">.ini文件所在路径</param>
         /// <returns></returns>
         public static string ReadContentValue(string Section, string key, string path)
         {
             StringBuilder temp = new StringBuilder();
             //判断文件是或否存在
             if (File.Exists(path))
             {
                 GetPrivateProfileString(Section, key, "", temp, , path);
             }
             return temp.ToString();

         }
     }

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