/// <summary>
///  The application's main entry point.
/// </summary>
[STAThread]
static void Main()
{
　　if (RunCmd("net localgroup administrators").IndexOf(System.Environment.UserName) >= 0)
    {
　　　　// Smooth execution.
    }
    else
    {
        // Error prompt system is not the administrator user login, easy to cause the program crash. Please log out with administrator privileges.

               
        // And exit the program.
     }
}
/// <summary>
///  call cmd.exe The program executes the command.
/// </summary>
/// <param name="command"> The command to be executed </param>
/// <returns></returns>
static string RunCmd(string command)
{
    // The instance 1 a Process Class, start 1 Independent processes
    Process p = new Process();
    //Process Class has 1 a StartInfo Property, this is ProcessStartInfo Class, including 1 Some properties and methods, we use the following properties:
    p.StartInfo.FileName = "cmd.exe";           // Program name
    p.StartInfo.Arguments = "/c " + command;    // Set program execution parameters
    p.StartInfo.UseShellExecute = false;        // Shut down Shell The use of
    p.StartInfo.RedirectStandardInput = true;   // Redirect standard input
    p.StartInfo.RedirectStandardOutput = true;  // Redirect standard output
    p.StartInfo.RedirectStandardError = true;   // Redirect error output
    p.StartInfo.CreateNoWindow = true;          // Set not to display a window
    p.Start();   // Start the
    p.StandardInput.WriteLine("exit");        // But remember to add Exit Otherwise the 1 It will crash when the stroke is executed
    return p.StandardOutput.ReadToEnd();        // Get command execution results from the output stream
}