def play():
global board, inplay
print(helper.title)
print(helper.instruction)
helper.show_board(board)
while inplay:
# 根据玩家输入的方向移动棋盘。移动后要用 check_board 检查棋盘。
pass
def play():
global board, inplay
print(helper.title)
print(helper.instruction)
helper.show_board(board)
while inplay:
direction = input("按方向键移动数字：")
if direction == UP:
move_up(board)
elif direction == DOWN:
move_down(board)
elif direction == LEFT:
move_left(board)
elif direction == RIGHT:
move_right(board)
helper.show_board(board)
check_status(board)