【QTdesigner】课时45.输入对话框（QInputDialog）【pyqt5+QTdesigner模式】

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不下载也可以，我每节课会吧代码贴出来

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视频链接

P44课时45.显示不同类型的消息对话框

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课程重点

QInputDialog.getItem 获取选项
QInputDialog.getText 获取文字
QInputDialog.getInt 获取数字

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代码位置

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完整代码

'''

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

    def initUI(self):
        self.setWindowTitle('输入对话框')
        layout = QFormLayout()

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

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

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

        self.setLayout(layout)

    def getItem(self):
        items = ('C','C++','Ruby','Python','Java')
        item, ok =QInputDialog.getItem(self,'请选择编程语言','语言列表',items)
        if ok and item:
            self.lineEdit1.setText(item)
    def getText(self):
        text, ok =QInputDialog.getText(self,'文本输入框','输入姓名')
        if ok and text:
            self.lineEdit2.setText(text)
    def getInt(self):
        num, ok =QInputDialog.getInt(self,'整数输入框','输入数字')
        if ok and num:
            self.lineEdit3.setText(str(num))

if __name__ == '__main__':
    app = QApplication(sys.argv)
    main = QInputDialogDemo()
    main.show()
    sys.exit(app.exec_())

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遇到的问题

不知道如何查帮助，应该可以设置Int的步长和范围之类的选项

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改写效果展示

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改写注意点

简单，没啥好注意的

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改写代码（QTdesigner模式）

# -*- coding:utf-8 -*-
'''
@Author: knocky
@Blog: https://blog.csdn.net/zzx188891020
@E-mail: [email protected]
@File: class_X.py
@CreateTime: 2020/5/11 23:36
'''

import sys
from PyQt5.QtWidgets import QApplication,QInputDialog
from PyQt5 import uic


class my_form():
    def __init__(self):
        super().__init__()
        self.ui = uic.loadUi("../ui_package/class45.ui")
        self.ui.pushButton1.clicked.connect(self.getItem)
        self.ui.pushButton2.clicked.connect(self.getText)
        self.ui.pushButton3.clicked.connect(self.getInt)

    def getItem(self):
        items = ('C', 'C++', 'Ruby', 'Python', 'Java')
        item, ok = QInputDialog.getItem(self.ui, '请选择编程语言', '语言列表', items)
        if ok and item:
            self.ui.lineEdit1.setText(item)

    def getText(self):
        text, ok = QInputDialog.getText(self.ui, '文本输入框', '输入姓名')
        if ok and text:
            self.ui.lineEdit2.setText(text)

    def getInt(self):
        num, ok = QInputDialog.getInt(self.ui, '整数输入框', '输入数字')
        if ok and num:
            self.ui.lineEdit3.setText(str(num))


if __name__ == '__main__':
    app = QApplication(sys.argv)
    main = my_form()
    main.ui.show()
    sys.exit(app.exec_())