pyqt5，python

Question

pyqt5

先附上完成的untiled.py代码

# -*- coding: utf-8 -*-

# Form implementation generated from reading ui file 'untitled.ui'
#
# Created by: PyQt5 UI code generator 5.13.0
#
# WARNING! All changes made in this file will be lost!
import os

from PyQt5 import QtCore, QtGui, QtWidgets
import  sys
from PyQt5.QtWidgets import QApplication, QMainWindow, QFileDialog



class Ui_MainWindow(object):
    def setupUi(self, MainWindow):
        MainWindow.setObjectName("MainWindow")
        MainWindow.resize(800, 600)
        self.centralwidget = QtWidgets.QWidget(MainWindow)
        self.centralwidget.setObjectName("centralwidget")
        self.pushButton = QtWidgets.QPushButton(self.centralwidget)
        self.pushButton.setGeometry(QtCore.QRect(340, 220, 93, 28))
        self.pushButton.setObjectName("pushButton")
        self.pushButton2 = QtWidgets.QPushButton(self.centralwidget)
        self.pushButton2.setGeometry(QtCore.QRect(340, 250, 93, 28))
        self.pushButton2.setObjectName("pushButton2")
        MainWindow.setCentralWidget(self.centralwidget)
        self.menubar = QtWidgets.QMenuBar(MainWindow)
        self.menubar.setGeometry(QtCore.QRect(0, 0, 800, 26))
        self.menubar.setObjectName("menubar")
        MainWindow.setMenuBar(self.menubar)
        self.statusbar = QtWidgets.QStatusBar(MainWindow)
        self.statusbar.setObjectName("statusbar")
        MainWindow.setStatusBar(self.statusbar)

        self.retranslateUi(MainWindow)
        QtCore.QMetaObject.connectSlotsByName(MainWindow)
        self.pushButton.clicked.connect(self.pbClicked)
        self.pushButton2.clicked.connect(self.pbClicked2)


    def retranslateUi(self, MainWindow):
        _translate = QtCore.QCoreApplication.translate
        MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow"))
        self.pushButton.setText(_translate("MainWindow", "PushButton"))
        self.pushButton2.setText(_translate("MainWindow", "PushButton2"))


    def pbClicked(self):
        self.fileName = QFileDialog.getOpenFileNames(None, "请选择要添加的文件",
                                     "E:\Program Files (x86)\PycharmProjects\nn\wangyiyun",
                                     "Text Files (*.xls);;All Files (*)")

        return self.fileName

    def pbClicked2(self):
        os.system('python test2.py')



if __name__=='__main__':
    app=QApplication(sys.argv)
    mainWindow=QMainWindow()
    ui=Ui_MainWindow()             #需要改名
    ui.setupUi(mainWindow)
    mainWindow.show()
    sys.exit(app.exec_())

def pbClicked(self):
        self.fileName = QFileDialog.getOpenFileNames(None, "请选择要添加的文件",
                                     "E:\Program Files (x86)\PycharmProjects\nn\wangyiyun",
                                     "Text Files (*.xls);;All Files (*)")

        return self.fileName

我想的是这个filename这个变量能够传到另一个py文件里面，并且能够输出

def pbClicked(self):
    self.fileName = QFileDialog.getOpenFileNames(None, "请选择要添加的文件",
                                 "E:\Program Files (x86)\PycharmProjects\nn\wangyiyun",
                                 "Text Files (*.xls);;All Files (*)")

    return self.fileName

def pbClicked2(self):
    os.system('python test2.py')

就是点这个第二个按钮，然后运行test2.py文件，然后在test2.py文件中能够获取到第一个按钮打开文件返回的文件路径

下面是test2.py

import Qtdesigner.untitled as ts
from Qtdesigner.untitled import Ui_MainWindow
filename = Ui_MainWindow.pbClicked()
print(filename)

但是这个Ui_MainWindow.pbClicked()，报错Parameter 'self' unfilled

Answer 1

qt里面的可以使用信号和槽 使用自定义的信号和自定义的槽，然后进行传输数据