PyQt5主窗口动态加载Widget实例代码
PyQt是一个创建GUI应用程序的工具包。它是Python编程语言和Qt库的成功融合。Qt库是目前最强大的库之一。PyQt是由Phil Thompson 开发。
我们通过Qt Designer设计两个窗口，命名为主窗口(MainForm)和子窗口(ChildrenForm)。我们在主窗口的空白中央添加一个栅格布局并命名为MaingridLayout，等会需要将ChildrenForm放进去。
编写代码
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from PyQt5 import QtWidgets from MainForm import Ui_MainForm from Children import Ui_Form from PyQt5.QtWidgets import QFileDialog class MainForm(QtWidgets.QMainWindow,Ui_MainForm): def __init__(self): super(MainForm,self).__init__() self.setupUi(self) self.child=ChildrenForm() #self.child = children()生成子窗口实例self.child self.fileOpen.triggered.connect(self.openMsg) #菜单的点击事件是triggered self.fileClose.triggered.connect(self.close) self.actionTst.triggered.connect(self.childShow) #点击actionTst,子窗口就会显示在主窗口的MaingridLayout中 def childShow(self): self.MaingridLayout.addWidget(self.child) #添加子窗口 self.child.show() def openMsg(self): file,ok=QFileDialog.getOpenFileName(self,"打开","C:/","All Files (*);;Text Files (*.txt)") self.statusbar.showMessage(file) #在状态栏显示文件地址 class ChildrenForm(QtWidgets.QWidget,Ui_Form): def __init__(self): super(ChildrenForm,self).__init__() self.setupUi(self) if __name__=="__main__": import sys app=QtWidgets.QApplication(sys.argv) myshow=MainForm() myshow.show() sys.exit(app.exec_()) |
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