如下所示：

import sysfrom PyQt5.QtWidgets import QMainWindow,QApplication,QTextEdit,QAction,QFileDialogfrom PyQt5.QtGui import QIconclass Example(QMainWindow): def __init__(self): super(Example, self).__init__() self.initUI() def initUI(self): self.textEdit = QTextEdit() self.setCentralWidget(self.textEdit) self.statusBar() openfile = QAction(QIcon(r'C:\Users\Administrator\PycharmProjects\QT\picture\文件.jpg'),'open',self) openfile.setShortcut("Ctrl + 0") openfile.setStatusTip('open new file') openfile.triggered.connect(self.showDialog) menubar = self.menuBar() filemune = menubar.addMenu('$File') filemune.addAction(openfile) self.setGeometry(300,300,300,300) self.setWindowTitle('FIEL dialog') self.show() def showDialog(self): fname = QFileDialog.getOpenFileName(self,'open file', '/') if fname[0]: try: f = open(fname[0], 'r') with f: data = f.read() self.textEdit.setText(data) except: self.textEdit.setText("打开文件失败，可能是文件内型错误")if __name__ == "__main__": app = QApplication(sys.argv) ex = Example() sys.exit(app.exec_())

以上这篇Python 使用PyQt5 完成选择文件或目录的对话框方法就是小编分享给大家的全部内容了，希望能给大家一个参考，也希望大家多多支持。