气轻PyQt6 20 下拉菜单(QComboBox)

 

在下拉菜单选中的选项会显示在标签中。

 

from PyQt6.QtWidgets import *

from PyQt6.QtCore import Qt

import sys

 

timeLabel = ['早饭前', '早饭后', '午饭前', '午饭后', '晚饭前', '晚饭后']

 

class PyQt620(QWidget):

    def __init__(self):

        super().__init__()

        self.initUI()

    def initUI(self):

        self.setWindowTitle('气轻PyQt6')                # 设置窗口标题

        self.resize(420, 50)                           # 设置窗口大小

        self.setStyleSheet('background-color:#FAEBD7')

 

        self.stage = QLabel(self)                       #设置label信息

        self.stage.setGeometry(10, 0,230, 40)           # 设置位置和大小

        self.stage.setText(timeLabel[0])

        self.stage.setObjectName('label')

        self.stage.setToolTip('时段')                   # 设置label提示

        self.stage.setAlignment(Qt.AlignmentFlag.AlignHCenter)# 居中设置

        self.stage.setStyleSheet('background-color:#ADD8E6;color : #00BFFF; \

                    font: bold italic large /"Times New Roman/";font-size:25px')

 

        self.combobox = QComboBox(self, minimumWidth=100)

        self.combobox.setGeometry(240, 0,170, 40)          # 设置位置和大小

        for i in range(len(timeLabel)):

            self.combobox.addItem(timeLabel[i])

        self.combobox.setCurrentIndex(0)

        self.combobox.setStyleSheet('background-color:#ADD8E6;color : #00BFFF; \

                    font: bold italic large /"Times New Roman/";font-size:25px')

        self.combobox.currentIndexChanged.connect(self.updateStage)

 

        self.show()

 

    def updateStage(self,val):

        self.stage.setText(self.combobox.currentText())

 

if __name__ == '__main__':

    app = QApplication(sys.argv)

    window = PyQt620()

    sys.exit(app.exec())

 

执行结果