QComboBox() 下拉菜单
python
from PySide6.QtWidgets import QApplication, QWidget, QComboBox, QLabel
app = QApplication([])
win = QWidget()
win.setWindowTitle("QComboBox 示例")
win.resize(300, 180)
label = QLabel("请选择一个选项：", win)
label.move(20, 20)
combo = QComboBox(win)
combo.move(20, 60)
combo.resize(150, 30)
# 添加选项
combo.addItem("广州")
combo.addItem("杭州")
#一次添加多个选项
combo.addItems(["北京", "上海", "武汉", "大连"])
#可编辑
#combo.setEditable(True)
# 响应选择变化
def on_changed(text):
label.setText(f"当前选择：{text}")
combo.currentTextChanged.connect(on_changed)
win.show()
app.exec()
