Vb.net 向命令提示符发送和从命令提示符接收消息

我正在使用VB 2010。我的问题是：

我可以在文本框中发送和显示send命令，没有任何问题 但是当我尝试在cmd中使用另一个.exe时，我无法在文本框中显示它 我的源代码是：

 Private Results As String

    'The "Delegate" is used to correct the threading issue (Can't update control directly in VB.net 08/10), and invokes the needed text update.
    Private Delegate Sub delUpdate()
    Private Finished As New delUpdate(AddressOf UpdateText)
    Private Sub UpdateText()
        TextBox2.Text = Results
    End Sub

    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

    End Sub

    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        Dim CMDThread As New Threading.Thread(AddressOf CMDAutomate)
        CMDThread.Start()
    End Sub

    Private Sub CMDAutomate()

        Dim myprocess As New Process
        Dim StartInfo As New System.Diagnostics.ProcessStartInfo

        'Starts the CMD Prompt
        StartInfo.FileName = "cmd.exe"
        StartInfo.RedirectStandardInput = True
        StartInfo.RedirectStandardOutput = True

        'Required to redirect
        StartInfo.UseShellExecute = False

        'Disables the creation of a CMD Prompt outside application.
        StartInfo.CreateNoWindow = True


        myprocess.StartInfo = StartInfo
        myprocess.Start()
        Dim SR As System.IO.StreamReader = myprocess.StandardOutput
        Dim SW As System.IO.StreamWriter = myprocess.StandardInput

        'Runs the command you entered...
        SW.WriteLine(TextBox1.Text)

        'Exits CMD Prompt 
        SW.WriteLine("exit")

        'Displayes the results...
        Results = SR.ReadToEnd
        SW.Close()
        SR.Close()

        'Invokes Finished delegate, which updates textbox with the results text
        Invoke(Finished)
    End Sub
End Class

例如，当我在cmd上使用命令

fastboot

时，我得到

usage: fastboot [ <option> ] <command>

commands:
  update <filename>                        reflash device from update.zip
  flashall                                 flash boot + recovery + system
  flash <partition> [ <filename> ]         write a file to a flash partition
  erase <partition>                        erase a flash partition
  format <partition>                       format a flash partition
  getvar <variable>                        display a bootloader variable
  boot <kernel> [ <ramdisk> ]              download and boot kernel
  flash:raw boot <kernel> [ <ramdisk> ]    create bootimage and flash it
  devices                                  list all connected devices
  continue                                 continue with autoboot
  reboot                                   reboot device normally
  reboot-bootloader                        reboot device into bootloader
  help                                     show this help message

options:
  -w                                       erase userdata and cache (and format
                                           if supported by partition type)
  -u                                       do not first erase partition before
                                           formatting
  -s <specific device>                     specify device serial number
                                           or path to device port
  -l                                       with "devices", lists device paths
  -p <product>                             specify product name
  -c <cmdline>                             override kernel commandline
  -i <vendor id>                           specify a custom USB vendor id
  -b <base_addr>                           specify a custom kernel base   address
  -n <page size>                           specify the nand page size.   default:
2048
  -S <size>[K|M|G]                         automatically sparse files greater th
an
                                           size.  0 to disable

---

在没有参数的情况下运行时，

fastboot.exe

的语法输出通过错误流显示；用于捕获此信息

StartInfo.RedirectStandardError = True
Dim SE As System.IO.StreamReader = myprocess.StandardError

---

Uni exception de première chance de type'System.InvalidOperationException's's's produite dans System.d使用您的代码（尽管在我的测试用例中运行了一些更改），这对我来说很好。您是否以与StandardOutput相同的方式实现它？“禁用在应用程序外部创建CMD提示符。StartInfo.CreateNoWindow=True StartInfo.RedirectStandardError=True myprocess.StartInfo=StartInfo myprocess.Start（）Dim SR As System.IO.StreamReader=myprocess.StandardOutput Dim SW As System.IO.StreamWriter=myprocess.StandardInput Dim SE As System.IO.StreamReader=myprocess.StandardError

StartInfo.RedirectStandardError = True
Dim SE As System.IO.StreamReader = myprocess.StandardError