way1 call xxx.bat

        string exefile = @"C:\123.bat"; //exefile="D:\\XX\\xxx.bat"
        System.Diagnostics.ProcessStartInfo psi = new System.Diagnostics.ProcessStartInfo(exefile);
        psi.UseShellExecute = false;//要讓USER看到cmd畫面就設true
        //psi.CreateNoWindow = true;
        //psi.RedirectStandardOutput = true;
        //psi.RedirectStandardInput = true;
        //psi.RedirectStandardError = true;
        System.Diagnostics.Process proc = System.Diagnostics.Process.Start(psi);
        proc.WaitForExit();
        if (proc != null)
        {
            proc.Close();
            proc.Dispose();
            proc = null;
        }        
    

way2 call cmd.exe (和cmd.exe互動)

public string Exec(List<string> commandText)
{
    Process p = new Process();
    p.StartInfo.FileName = "cmd.exe";
    p.StartInfo.UseShellExecute = false;
    p.StartInfo.RedirectStandardInput = true;
    p.StartInfo.RedirectStandardOutput = true;
    p.StartInfo.RedirectStandardError = true;
    p.StartInfo.CreateNoWindow = true;
    string strOutput = null;
    try
    {
        p.Start();
        for (int i = 0; i < commandText.Count; i++)
        {
            string cmd = commandText[i];
            p.StandardInput.WriteLine(cmd);
        }
        p.StandardInput.WriteLine("exit");
        strOutput = p.StandardOutput.ReadToEnd();
        p.WaitForExit();
        p.Close();
    }
    catch (Exception e)
    {
        strOutput = e.Message;
    }
    return strOutput;
}