当我使用os.system()或subprocess.call()时,如何隐藏控制台? [英] How do I hide the console when I use os.system() or subprocess.call()?

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问题描述

我写了如下的一些语句:

  os.system(cmd)#do something 
subprocess.call ('taskkill / F / IM exename.exe')

p>

如何阻止它弹出控制台?

解决方案

STARTUPINFO 可以隐藏控制台窗口:

  si = subprocess.STARTUPINFO()
si.dwFlags | = subprocess.STARTF_USESHOWWINDOW
#si.wShowWindow = subprocess.SW_HIDE#default
subprocess.call('taskkill / F / IM exename .exe',startupinfo = si)

或设置创建标志禁用创建窗口: P>

  CREATE_NO_WINDOW = 0x08000000 
subprocess.call('taskkill / F / IM exename.exe',creationflags = CREATE_NO_WINDOW)$ b上面仍然是一个控制台进程,有控制台I / O的有效句柄(通过调用<$ c $来验证)$ b



< c> GetFileType
GetStdHandle 返回的句柄上)。它只有没有窗口,并不继承父级的控制台(如果有)。



您可以通过强制孩子完全没有控制台来进一步:

  DETACHED_PROCESS = 0x00000008 
subprocess.call('taskkill / F / IM exename.exe',creationflags = DETACHED_PROCESS)

在这种情况下,子进程的标准句柄(即 GetStdHandle )为0,但可以将其设置为打开的磁盘文件或管道例如 subprocess.DEVNULL (3.3)或 subprocess.PIPE


I wrote some statements like below:

os.system(cmd) #do something
subprocess.call('taskkill /F /IM exename.exe')

both will pop up a console.

How can I stop it from popping up the console?

解决方案

The process STARTUPINFO can hide the console window:

si = subprocess.STARTUPINFO()
si.dwFlags |= subprocess.STARTF_USESHOWWINDOW
#si.wShowWindow = subprocess.SW_HIDE # default
subprocess.call('taskkill /F /IM exename.exe', startupinfo=si)

Or set the creation flags to disable creating the window:

CREATE_NO_WINDOW = 0x08000000
subprocess.call('taskkill /F /IM exename.exe', creationflags=CREATE_NO_WINDOW)

The above is still a console process with valid handles for console I/O (verified by calling GetFileType on the handles returned by GetStdHandle). It just has no window and doesn't inherit the parent's console, if any.

You can go a step farther by forcing the child to have no console at all:

DETACHED_PROCESS = 0x00000008
subprocess.call('taskkill /F /IM exename.exe', creationflags=DETACHED_PROCESS)

In this case the child's standard handles (i.e. GetStdHandle) are 0, but you can set them to an open disk file or pipe such as subprocess.DEVNULL (3.3) or subprocess.PIPE.

这篇关于当我使用os.system()或subprocess.call()时,如何隐藏控制台?的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!

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