配置文件操作（*.ini）

调用系统Dll对ini的文件进行读写

[DllImport("kernel32")]
       private static extern int GetPrivateProfileString(string section, string key, string defVal, StringBuilder retVal, int size, string filePath);
       [DllImport("kernel32")]
       private static extern long WritePrivateProfileString(string section, string key, string val, string filePath);
       private static string Path = Application.StartupPath.ToString() + "\\App.ini";
       /// <summary>
       /// 写INI文件
       /// </summary>
       /// <param name="section">段落</param>
       /// <param name="key">键</param>
       /// <param name="iValue">值</param>
       public static void IniWriteValue(string section, string key, string iValue)
       {
           WritePrivateProfileString(section, key, iValue, Path);
       }

       /// <summary>
       /// 读取INI文件
       /// </summary>
       /// <param name="section">段落</param>
       /// <param name="key">键</param>
       /// <returns>返回的键值</returns>
       public static string IniReadValue(string section, string key)
       {
           StringBuilder temp = new StringBuilder(255);

           int i = GetPrivateProfileString(section, key, "", temp, 255, Path);
           return temp.ToString();
       }