MultiListbox上的双击事件

import tkinter as tk
from tkinter import Listbox, Scrollbar

class MultiListbox(tk.Frame):
    def __init__(self, master=None, **kw):
        super().__init__(master, **kw)
        self.lists = []
        self.init_ui()

    def init_ui(self):
        for i in range(3):  # 创建三个列表框
            lb = Listbox(self)
            lb.pack(side=tk.LEFT, fill=tk.BOTH, expand=True)
            sb = Scrollbar(self, orient=tk.VERTICAL, command=lb.yview)
            lb.config(yscrollcommand=sb.set)
            sb.pack(side=tk.RIGHT, fill=tk.Y)
            self.lists.append(lb)

        # 绑定双击事件
        for lb in self.lists:
            lb.bind("<Double-Button-1>", self.on_double_click)

    def on_double_click(self, event):
        widget = event.widget
        selection = widget.curselection()
        if selection:
            index = selection[0]
            value = widget.get(index)
            print(f"Double clicked on: {value}")

if __name__ == "__main__":
    root = tk.Tk()
    app = MultiListbox(root)
    app.pack(fill=tk.BOTH, expand=True)
    root.mainloop()