tkinter如何绑定事件

组件绑定事件的通用语法

widget.bind(event,handle)      

bind会把事件源event的信号等信息发给handle处理函数

右击，弹出选择菜单

from tkinter import *
from tkinter import messagebox


class TestWin(Tk):
    def __init__(self):
        super().__init__()
        self.title("右击，弹出选择菜单")
        self.geometry("600x400+200+200")
        self.bind("<Button-3>",self.RightClicked)

        '''创建一个弹出菜单'''
        self.menu = Menu(self,
                    tearoff=False,
                    )
        self.menu.add_command(label="callback1", command=self.callback1)
        self.menu.add_command(label="callback2", command=self.callback2)
        self.menu.add_command(label="callback3", command=self.callback3)

    def RightClicked(self,event):
        self.menu.post(event.x_root, event.y_root)

    def callback1(self,event=None):
        messagebox.showinfo("Message", "callback1")

    def callback2(event=None):
        messagebox.showinfo("Message", "callback2")

    def callback3(event=None):
        messagebox.showinfo("Message", "callback3")

if __name__ == '__main__':
    win = TestWin()
    win.mainloop()