python的pyqt5，常用实例代码

# -*- coding: utf-8 -*- # Form implementation generated from reading ui file 'test.ui' # # Created by: PyQt5 UI code generator 5.11.3 # # WARNING! All changes made in this file will be lost! import sys from PyQt5 import QtCore, QtGui, QtWidgets class Ui_Dialog(object): def setupUi(self, Dialog): Dialog.setObjectName("Dialog") Dialog.resize(400, 300) self.pushButton = QtWidgets.QPushButton(Dialog) self.pushButton.setGeometry(QtCore.QRect(140, 160, 75, 23)) self.pushButton.setObjectName("pushButton") self.label = QtWidgets.QLabel(Dialog) self.label.setGeometry(QtCore.QRect(80, 80, 54, 12)) self.label.setObjectName("label") self.lineEdit = QtWidgets.QLineEdit(Dialog) self.lineEdit.setGeometry(QtCore.QRect(100, 100, 181, 31)) self.lineEdit.setObjectName("lineEdit") self.pushButton.clicked.connect(self.A) self.retranslateUi(Dialog) QtCore.QMetaObject.connectSlotsByName(Dialog) def retranslateUi(self, Dialog): _translate = QtCore.QCoreApplication.translate Dialog.setWindowTitle(_translate("Dialog", "Dialog")) self.pushButton.setText(_translate("Dialog", "确定")) self.label.setText(_translate("Dialog", "录入数据：")) def A(self,Dialog): try: EditText=self.lineEdit.text() _translate = QtCore.QCoreApplication.translate self.label.setText(_translate("Dialog", EditText)) except: print(sys.exc_info()) if __name__=='__main__': app=QtWidgets.QApplication(sys.argv) Form=QtWidgets.QWidget() ui=Ui_Dialog() ui.setupUi(Form) Form.show() sys.exit(app.exec_())