tkinter响应键盘事件

from tkinter import *
root = Tk()

def printCoords(event):
print ('event.char = ',event.char)
print ('event.keycode = ',event.keycode)

# 创建一个Button,并将它与BackSpace键绑定
bt = Button(root,text = 'Press Key')
bt.bind('',printCoords)

# 将焦点设置到Button上
bt.focus_set()
bt.grid()
root.mainloop()