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Владимир
Asked:2022-04-25 20:44:16 +0000 UTC2022-04-25 20:44:16 +0000 UTC

如何在 PyQt5 中使用 QProcess 运行文件？

  • 772

如何在PyQt5中运行文件QProcess？

按下按钮时，没有任何反应。

test_QProsess.py

import sys
import subprocess

from PyQt5 import Qt
from PyQt5.QtWidgets import QMainWindow, QApplication, QPushButton
from PyQt5.QtCore import QProcess

class StartProcess(QMainWindow):
    def __init__(self):
        super(StartProcess, self).__init__()
        self.setGeometry(50, 50, 500, 300)
        self.setWindowTitle('Главное окно')
        self.sprocess()

    def sprocess(self):
        btn_run = QPushButton('Пуск', self)
        filepath = "hello.py"
        btn_run.clicked.connect(lambda checked, arg=filepath: self.execute(arg))

        self.show()

    def execute(self, filepath):
        QProcess.startDetached(filepath)

if not QApplication.instance():
    app = QApplication(sys.argv)
else:
    app = QApplication.instance()

GUI = StartProcess()
app.exec_()

你好.py

print('Привет!')
python

1 个回答

  1. Best Answer

    试试这样：

    import sys
# ??? import subprocess
# ??? from PyQt5 import Qt
from PyQt5.QtWidgets import QMainWindow, QApplication, QPushButton
from PyQt5.QtCore import QProcess


class StartProcess(QMainWindow):
    def __init__(self):
        super(StartProcess, self).__init__()
        self.setGeometry(50, 50, 500, 300)
        self.setWindowTitle('Главное окно')
        self.sprocess()

    def sprocess(self):
        btn_run = QPushButton('Пуск', self)
        filepath = "hello.py"
        btn_run.clicked.connect(lambda checked, arg=filepath: self.execute(arg))

    def execute(self, filepath):
#        QProcess.startDetached(filepath)
        QProcess.startDetached(f"python {filepath}")                 # !!!


if __name__ == "__main__":
    app = QApplication(sys.argv)
    w = StartProcess()
    w.show()
    sys.exit(app.exec_())

    在此处输入图像描述

    • 2

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