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()?

问题描述

我写了一些如下的语句:

I wrote some statements like below:

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

两者都会弹出一个控制台.

both will pop up a console.

如何阻止它弹出控制台?

How can I stop it from popping up the console?

推荐答案

进程STARTUPINFO可以隐藏控制台窗口:

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)

或者设置创建标志来禁止创建窗口:

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)

以上仍然是一个具有控制台 I/O 有效句柄的控制台进程(通过对 GetStdHandle 返回的句柄调用 GetFileType 进行验证).它只是没有窗口并且不继承父级的控制台(如果有的话).

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.

你可以通过强迫孩子根​​本没有控制台来更进一步:

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)

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

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.

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