c#api

 [DllImport("kernel32")]//获取ini数据
        private static extern int  GetPrivateProfileString(string section,string key,string def,StringBuilder retVal,int size,string filePath);
        [DllImport("kernel32")]//把数据写到ini
        private static extern int WritePrivateProfileString(string section, string key, string val, string filePath);
        [DllImport("kernel32")]//获取windows目录
        private static extern void GetWindowsDirectory(StringBuilder WinDir, int count);