PyQt5基础学习-QInputDialog(输入对话框) 1.QInputDialog.getItem(选择对话框) 2.QInputDialog.getText(文本输入框) 3.QInputDialog.getInt(数字输入框)

使用表单布局FormLayer, 通过点击按钮，绑定对话框，点击完按钮对话框弹出

QInputDialogDemo.py

"""
输入对话框: QInputDialog

QInputDialog.getItem
QInputDialog.getText
QInputDialog.getInt
"""

import sys
from PyQt5.QtCore import *
from PyQt5.QtGui import *
from PyQt5.QtWidgets import *
from PyQt5.QtCore import Qt


class QInputDialogDemo(QWidget):
    def __init__(self):
        super(QInputDialogDemo, self).__init__()
        self.initUI()

    def initUI(self):
        self.setWindowTitle("输入对话框")
        #表单对话框
        layout = QFormLayout()

        self.button1 = QPushButton("获取列表中的选项")
        self.button1.clicked.connect(self.getItem)
        self.lineEdit1 = QLineEdit()
        self.lineEdit1.setDisabled(True)
        layout.addRow(self.button1, self.lineEdit1)

        self.button2 = QPushButton("获取字符串")
        self.button2.clicked.connect(self.getText)
        self.lineEdit2 = QLineEdit()
        self.lineEdit2.setDisabled(True)
        layout.addRow(self.button2, self.lineEdit2)

        self.button3 = QPushButton("获取整数")
        self.button3.clicked.connect(self.getInt)
        self.lineEdit3 = QLineEdit()
        self.lineEdit3.setDisabled(True)
        layout.addRow(self.button3, self.lineEdit3)

        self.setLayout(layout)

    def getItem(self):
        items = ('C', "C++", 'Ruby', 'Python', 'Java')
        # 构造选项对话框
        item, ok = QInputDialog.getItem(self, "请选择编程语言", "语言列表", items)
        # 如果有选择, 就显示在文本框中
        if ok and item:
            self.lineEdit1.setText(item)

    def getText(self):
        # 构造文本对话框
        text, ok = QInputDialog.getText(self, "文本输入框", "输入姓名")
        # 如果有输入就显示在文本框中
        if ok and text:
            self.lineEdit2.setText(text)

    def getInt(self):
        # 构造数字对话框
        num, ok = QInputDialog.getInt(self, "整数输入框", '输入数字')
        # 如果有输入就显示在文本框中
        if ok and num:
            self.lineEdit3.setText(str(num))

if __name__ == "__main__":
    app = QApplication(sys.argv)

    main = QInputDialogDemo()
    main.show()

    sys.exit(app.exec_())