链接按钮以运行 .py 文件

Question

我想要做的是能够通过单击 main.py 上的按钮打开 grid.py。最好保持相同的结构（ui 文件以及主要和网格 python 文件）。谢谢，

因此，我创建了一个简单的 UI 界面，其中仅包含一个带有 Qt 设计器的按钮 (test-open.ui)：

<?xml version="1.0" encoding="UTF-8"?>
<ui version="4.0">
 <class>MainWindow</class>
 <widget class="QMainWindow" name="MainWindow">
  <property name="geometry">
   <rect>
    <x>0</x>
    <y>0</y>
    <width>604</width>
    <height>424</height>
   </rect>
  </property>
  <property name="windowTitle">
   <string>MainWindow</string>
  </property>
  <widget class="QWidget" name="centralwidget">
   <widget class="QPushButton" name="pushButton">
    <property name="geometry">
     <rect>
      <x>230</x>
      <y>160</y>
      <width>75</width>
      <height>23</height>
     </rect>
    </property>
    <property name="text">
     <string>PushButton</string>
    </property>
   </widget>
  </widget>
  <widget class="QMenuBar" name="menubar">
   <property name="geometry">
    <rect>
     <x>0</x>
     <y>0</y>
     <width>604</width>
     <height>21</height>
    </rect>
   </property>
  </widget>
  <widget class="QStatusBar" name="statusbar"/>
 </widget>
 <resources/>
 <connections/>
</ui>

然后我创建了主 .py 文件（ma​​in.py）：

from PyQt5 import QtWidgets, uic

app = QtWidgets.QApplication([])
dlg = uic.loadUi(r"E:\Python\Project\test-open.ui")

dlg.show()
app.exec()

最后，这是我用 WxPython 创建的一个网格，我希望通过单击按钮来打开它 (grid.py)

import sys

from PyQt5.QtWidgets import QMainWindow, QApplication, QWidget, QAction, QTableWidget,QTableWidgetItem,QVBoxLayout
from PyQt5.QtGui import QIcon
from PyQt5.QtCore import pyqtSlot


class App(QWidget):

    def __init__(self):
        super().__init__()
        self.title = 'PyQt5 table - pythonspot.com'
        self.left = 0
        self.top = 0
        self.width = 460
        self.height = 200
        self.initUI()

    def initUI(self):
        self.setWindowTitle(self.title)
        self.setGeometry(self.left, self.top, self.width, self.height)

        self.createTable()

        # Add box layout, add table to box layout and add box layout to widget
        self.layout = QVBoxLayout()
        self.layout.addWidget(self.tableWidget) 
        self.setLayout(self.layout) 

        # Show widget
        self.show()

    def createTable(self):
       # Create table
        self.tableWidget = QTableWidget()
        self.tableWidget.setRowCount(4)
        self.tableWidget.setColumnCount(4)
        self.tableWidget.setItem(0,0, QTableWidgetItem("Cell (1,1)"))
        self.tableWidget.setItem(0,1, QTableWidgetItem("Cell (1,2)"))
        self.tableWidget.setItem(0,2, QTableWidgetItem("Cell (1,1)"))
        self.tableWidget.setItem(0,3, QTableWidgetItem("Cell (1,2)"))
        self.tableWidget.setItem(0,4, QTableWidgetItem("Cell (1,1)"))

        self.tableWidget.setItem(1,0, QTableWidgetItem("Cell (1,1)"))
        self.tableWidget.setItem(1,1, QTableWidgetItem("Cell (1,2)"))
        self.tableWidget.setItem(1,2, QTableWidgetItem("Cell (1,1)"))
        self.tableWidget.setItem(1,3, QTableWidgetItem("Cell (1,2)"))
        self.tableWidget.setItem(1,4, QTableWidgetItem("Cell (1,1)"))

        self.tableWidget.setItem(2,0, QTableWidgetItem("Cell (1,1)"))
        self.tableWidget.setItem(2,1, QTableWidgetItem("Cell (1,2)"))
        self.tableWidget.setItem(2,2, QTableWidgetItem("Cell (1,1)"))
        self.tableWidget.setItem(2,3, QTableWidgetItem("Cell (1,2)"))
        self.tableWidget.setItem(2,4, QTableWidgetItem("Cell (1,1)"))

        self.tableWidget.setItem(3,0, QTableWidgetItem("Cell (1,1)"))
        self.tableWidget.setItem(3,1, QTableWidgetItem("Cell (1,2)"))
        self.tableWidget.setItem(3,2, QTableWidgetItem("Cell (1,1)"))
        self.tableWidget.setItem(3,3, QTableWidgetItem("Cell (1,2)"))
        self.tableWidget.setItem(3,4, QTableWidgetItem("Cell (1,1)"))
        self.tableWidget.move(0,0)

        # table selection change
        self.tableWidget.doubleClicked.connect(self.on_click)

    @pyqtSlot()
    def on_click(self):
        print("\n")
        for currentQTableWidgetItem in self.tableWidget.selectedItems():
            print(currentQTableWidgetItem.row(), currentQTableWidgetItem.column(), currentQTableWidgetItem.text())

if __name__ == '__main__':
    app = QApplication(sys.argv)
    ex = App()
    sys.exit(app.exec_())  

Answer 1

您混淆了概念，程序不是一组文件，而是基于类创建的对象之间的交互。所以在实现任何东西之前，我会假设文件具有以下结构：

├── grid.py
├── main.py
└── test-open.ui

另一方面，在 App 类构造函数中，您正在显示窗口，这不是您想要的，最初必须关闭窗口，因此我将删除该行。切入正题，您必须在 main 中导入 grid 模块才能创建 App 小部件对象。

grid.py

import sys

from PyQt5.QtWidgets import (
    QMainWindow,
    QApplication,
    QWidget,
    QAction,
    QTableWidget,
    QTableWidgetItem,
    QVBoxLayout,
)
from PyQt5.QtGui import QIcon
from PyQt5.QtCore import pyqtSlot


class App(QWidget):
    def __init__(self):
        super().__init__()
        self.title = "PyQt5 table - pythonspot.com"
        self.left = 0
        self.top = 0
        self.width = 460
        self.height = 200
        self.initUI()

    def initUI(self):
        self.setWindowTitle(self.title)
        self.setGeometry(self.left, self.top, self.width, self.height)

        self.createTable()

        # Add box layout, add table to box layout and add box layout to widget
        self.layout = QVBoxLayout()
        self.layout.addWidget(self.tableWidget)
        self.setLayout(self.layout)

    def createTable(self):
        # Create table
        self.tableWidget = QTableWidget()
        self.tableWidget.setRowCount(4)
        self.tableWidget.setColumnCount(4)
        self.tableWidget.setItem(0, 0, QTableWidgetItem("Cell (1,1)"))
        self.tableWidget.setItem(0, 1, QTableWidgetItem("Cell (1,2)"))
        self.tableWidget.setItem(0, 2, QTableWidgetItem("Cell (1,1)"))
        self.tableWidget.setItem(0, 3, QTableWidgetItem("Cell (1,2)"))
        self.tableWidget.setItem(0, 4, QTableWidgetItem("Cell (1,1)"))

        self.tableWidget.setItem(1, 0, QTableWidgetItem("Cell (1,1)"))
        self.tableWidget.setItem(1, 1, QTableWidgetItem("Cell (1,2)"))
        self.tableWidget.setItem(1, 2, QTableWidgetItem("Cell (1,1)"))
        self.tableWidget.setItem(1, 3, QTableWidgetItem("Cell (1,2)"))
        self.tableWidget.setItem(1, 4, QTableWidgetItem("Cell (1,1)"))

        self.tableWidget.setItem(2, 0, QTableWidgetItem("Cell (1,1)"))
        self.tableWidget.setItem(2, 1, QTableWidgetItem("Cell (1,2)"))
        self.tableWidget.setItem(2, 2, QTableWidgetItem("Cell (1,1)"))
        self.tableWidget.setItem(2, 3, QTableWidgetItem("Cell (1,2)"))
        self.tableWidget.setItem(2, 4, QTableWidgetItem("Cell (1,1)"))

        self.tableWidget.setItem(3, 0, QTableWidgetItem("Cell (1,1)"))
        self.tableWidget.setItem(3, 1, QTableWidgetItem("Cell (1,2)"))
        self.tableWidget.setItem(3, 2, QTableWidgetItem("Cell (1,1)"))
        self.tableWidget.setItem(3, 3, QTableWidgetItem("Cell (1,2)"))
        self.tableWidget.setItem(3, 4, QTableWidgetItem("Cell (1,1)"))
        self.tableWidget.move(0, 0)

        # table selection change
        self.tableWidget.doubleClicked.connect(self.on_click)

    @pyqtSlot()
    def on_click(self):
        print("\n")
        for currentQTableWidgetItem in self.tableWidget.selectedItems():
            print(
                currentQTableWidgetItem.row(),
                currentQTableWidgetItem.column(),
                currentQTableWidgetItem.text(),
            )


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

ma​​in.py

from PyQt5 import QtWidgets, uic
from grid import App


if __name__ == "__main__":
    import os
    import sys

    app = QtWidgets.QApplication(sys.argv)
    file = os.path.join(
        os.path.dirname(os.path.realpath(__file__)), "test-open.ui"
    )
    dlg = uic.loadUi(file)
    w = App()
    dlg.pushButton.clicked.connect(w.show)
    dlg.show()
    sys.exit(app.exec_())