python - 用os.system打开程序卡在CMD窗口上怎么办？

Question

这是一个Windos自动登录QQ的一段代码，但是有个问题。（win10， python2.7） {代码...} 其中， {代码...} 这一步是打开QQ，并把鼠标指在账号输入的地方。 可是CMD打开QQ后，CMD窗口依然停留在桌面上，导致接下来...

ringa_lee · Answer

The problem is that os.system is blocked. You must complete the previous step before you can do the next step. You need to call the mouse while opening QQ, so the two are contradictory

Use subprocess

instead

import subprocess
import win32api
import win32con
import time

from ctypes import *

qq_exe = r"D:\qq\Bin\QQ.exe"
subprocess.Popen([qq_exe])
time.sleep(5)//由于非阻塞 sleep时间要增大 或者可以调用其他方法 探测qq的窗口存在吗
windll.user32.SetCursorPos(969, 583)
win32api.mouse_event(win32con.MOUSEEVENTF_LEFTDOWN, 0, 0, 0, 0)
win32api.mouse_event(win32con.MOUSEEVENTF_LEFTUP, 0, 0, 0, 0)

黄舟 · Answer

Because os.system actually creates a cmd.exe process, and then this process creates the qq process. In order to avoid the cmd.exe process, you can directly use a module such as subprocess to open qq directly.