基本操作

import sys
from PyQt5.QtCore import *
from PyQt5.QtGui import *
from PyQt5.QtWidgets import *class InputdialogDemo(QWidget):def __init__(self, parent=None):super(InputdialogDemo, self).__init__(parent)layout = QFormLayout()self.btn1 = QPushButton("获得列表里的选项")self.btn1.clicked.connect(self.getItem)self.le1 = QLineEdit()layout.addRow(self.btn1,self.le1)self.btn2 = QPushButton("获得字符串")self.btn2.clicked.connect(self.getIext)self.le2 = QLineEdit()layout.addRow(self.btn2,self.le2)self.btn3 = QPushButton("获得整数")self.btn3.clicked.connect(self.getInt)self.le3 = QLineEdit()layout.addRow(self.btn3,self.le3)self.setLayout(layout)self.setWindowTitle("Input Dialog 例子")def getItem(self):items = ("C", "C++", "Java", "Python")item, ok = QInputDialog.getItem(self, "select input dialog","语言列表", items, 0, False)if ok and item:self.le1.setText(item)def getIext(self): text, ok = QInputDialog.getText(self, 'Text Input Dialog', '输入姓名:')if ok:self.le2.setText(str(text)) def getInt(self):num,ok = QInputDialog.getInt(self,"integer input dualog","输入数字")if ok:self.le3.setText(str(num))if __name__ == '__main__':app = QApplication(sys.argv)demo = InputdialogDemo()demo.show()sys.exit(app.exec_())