程序代码：

class _Getch:
    """Gets a single character from standard input.  Does not echo to the screen."""
    def __init__(self):
        self.impl = _GetchWindows()
    def __call__(self): 
        return self.impl()
class _GetchWindows:
    def __init__(self):
        import msvcrt
    def __call__(self):
        import msvcrt
        return msvcrt.getch()
if __name__ == '__main__': # a little test
   print ('Press a key')
   inkey = _Getch()
   import sys
   for i in range(100):
      k=inkey()
      print ('you pressed ',k)
      if k.decode()=='q':
        break

n=input("...")  #输入你要值（引号里面）
if not(n=="石头" or n=="布" or n=="剪刀")
    exit()