键盘操作管理模块

    # -*- coding: utf-8 -*-
    """
    Created on Tue Feb 26 12:29:57 2019
    
    @author: 车路历程
    """
    from tkinter import *
     
    def Advance(event):
    print("前进")
     
    def Retreat(event):
    print("后退")
     
    def Left(event):
    print("向左")
     
    def Right(event):
    print("向右")
     
    def stop(evnet):
    print('停止')
    
    # 主函数
    def main(): 
    # 使用tkinter.Tk() 生成主窗口
    root = Tk()
    frame = Frame(root, width=100, height=100)
    frame.bind_all("<Up>", Advance)
    frame.bind_all("<Down>", Retreat)
    frame.bind_al