03-QComboBox-数据获取.py

import sys

from PyQt5.Qt import *


class Window(QWidget):
    def __init__(self):
        super().__init__()
        self.setWindowTitle("QComboBox-数据获取")
        self.resize(500, 500)
        self.move(400, 250)
        self.setup_ui()

    def setup_ui(self):
        cbb = QComboBox(self)
        cbb.move(100, 100)
        cbb.resize(150, 20)
        cbb.addItems([str(i) for i in range(4)])
        cbb.addItem("字符串", {"name": "muzing"})
        btn = QPushButton("测试按钮", self)
        btn.move(100, 200)

        # btn.clicked.connect(lambda: print(cbb.count()))
        btn.clicked.connect(lambda: print(f"当前Text为 {cbb.currentText()}"))
        btn.clicked.connect(lambda: print(f"当前Index为 {cbb.currentIndex()}"))
        btn.clicked.connect(lambda: print(f"当前Data为 {cbb.currentData()}"))
        # btn.clicked.connect(lambda: print(f'当前Icon为 {cbb.itemIcon(cbb.currentIndex())}'))
        btn.clicked.connect(
            lambda: print(f"最后一项的Text为 {cbb.itemText(cbb.count() - 1)}")
        )


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

    window = Window()
    window.show()

    sys.exit(app.exec_())