Question

问题是不言自明的。如果代码长一行（与“Process.Start("...")”有关）会很棒吗？）。我研究了网络，但只找到了旧的例子和那些不起作用的例子（至少对我而言）。我想在我的类库中使用它来运行Git命令（如果这有帮助吗？）。

Answer 1

你可以尝试这种方法：

Public Class MyUtilities
    Shared Sub RunCommandCom(command as String, arguments as String, permanent as Boolean) 
        Dim p as Process = new Process() 
        Dim pi as ProcessStartInfo = new ProcessStartInfo() 
        pi.Arguments = " " + if(permanent = true, "/K" , "/C") + " " + command + " " + arguments 
        pi.FileName = "cmd.exe" 
        p.StartInfo = pi 
        p.Start() 
    End Sub
End Class

例如，以这种方式打电话：

MyUtilities.RunCommandCom("DIR", "/W", true)

编辑：对于一行上的多个命令，键是＆amp; | ＆安培;＆安培;和||命令连接器

A＆amp; B →执行命令A，然后执行命令B.
A | B →执行命令A，并将其所有输出重定向到输入命令B.
A＆amp;＆amp; B →执行命令A，运行后评估错误级别命令A，如果退出代码（errorlevel）为0，则只执行命令B.
A || B →执行命令A，评估该命令的退出代码如果它不是0，则只执行命令B.

Answer 2

您可以尝试运行此命令然后cmd退出

Process.Start("cmd", "/c YourCode")

您可以尝试运行此命令并让cmd等待更多命令

Process.Start("cmd", "/k YourCode")

Answer 3

我的灵感来自史蒂夫的答案，但我想我会为它添加一些亮点。我喜欢在编写扩展方法之前做好工作，以便稍后调用方法的工作量减少。

例如，使用下面史蒂夫的答案的修改版本，而不是拨打这个电话......

MyUtilities.RunCommandCom("DIR", "/W", true)

我实际上只需输入命令并从我的字符串中调用它......

直接在代码中。

Call "CD %APPDATA% & TREE".RunCMD()

OR

来自变量。

Dim MyCommand = "CD %APPDATA% & TREE"
MyCommand.RunCMD()

OR

来自文本框。

textbox.text.RunCMD(WaitForProcessComplete:=True)

扩展方法需要放在公共模块中，并在子上携带<Extension>属性。您还需要将Imports System.Runtime.CompilerServices添加到代码文件的顶部。

如果您需要进一步的帮助，有很多关于扩展方法的信息。

扩展方法

Public Module Extensions
''' <summary>
''' Extension method to run string as CMD command.
''' </summary>
''' <param name="command">[String] Command to run.</param>
''' <param name="ShowWindow">[Boolean](Default:False) Option to show CMD window.</param>
''' <param name="WaitForProcessComplete">[Boolean](Default:False) Option to wait for CMD process to complete before exiting sub.</param>
''' <param name="permanent">[Boolean](Default:False) Option to keep window visible after command has finished. Ignored if ShowWindow is False.</param>
<Extension>
Public Sub RunCMD(command As String, Optional ShowWindow As Boolean = False, Optional WaitForProcessComplete As Boolean = False, Optional permanent As Boolean = False)
    Dim p As Process = New Process()
    Dim pi As ProcessStartInfo = New ProcessStartInfo()
    pi.Arguments = " " + If(ShowWindow AndAlso permanent, "/K", "/C") + " " + command
    pi.FileName = "cmd.exe"
    pi.CreateNoWindow = Not ShowWindow
    If ShowWindow Then
        pi.WindowStyle = ProcessWindowStyle.Normal
    Else
        pi.WindowStyle = ProcessWindowStyle.Hidden
    End If
    p.StartInfo = pi
    p.Start()
    If WaitForProcessComplete Then Do Until p.HasExited : Loop
End Sub
End Module

Answer 4

Sub systemcmd(ByVal cmd As String)
    Shell("cmd /c """ & cmd & """", AppWinStyle.MinimizedFocus, True)
End Sub

Answer 5

Imports System.IO
Public Class Form1
    Public line, counter As String
    Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
        counter += 1
        If TextBox1.Text = "" Then
            MsgBox("Enter a DNS address to ping")
        Else
            'line = ":start" + vbNewLine
            'line += "ping " + TextBox1.Text
            'MsgBox(line)
            Dim StreamToWrite As StreamWriter
            StreamToWrite = New StreamWriter("C:\Desktop\Ping" + counter + ".bat")
            StreamToWrite.Write(":start" + vbNewLine + _
                                "Ping -t " + TextBox1.Text)
            StreamToWrite.Close()
            Dim p As New System.Diagnostics.Process()
            p.StartInfo.FileName = "C:\Desktop\Ping" + counter + ".bat"
            p.Start()
        End If
    End Sub
End Class

这也适用

如何从VB.NET运行DOS / CMD /命令提示符命令？

5 个答案: