除了一步之外,我已经完成了我的所有作业。
我以不同的方式做到了,但它以某种方式给出了正确的答案。无论如何,我必须探索一个迷宫,所以我一路走来,一切都完全正确,除了这个任务的一部分(Q COMMAND)。
我需要使用字符串方法.upper()
2.2.6 顶级界面
interact()
是定义文本基础用户界面的顶级功能,如介绍中所述。请注意,当用户退出或找到完成方块时,交互功能应该退出。
def interact():
mazefile = raw_input('Maze File: ')
maze = load_maze(mazefile)
position = (1, 1)
poshis = [position]
while True:
#print poshis, len(poshis)
print 'You are at position', position
command = raw_input('Command: ')
#print command
if command == '?':
print HELP
elif command == 'N' or command == 'E' or command == 'S'or command == 'W':
mov = move(maze, position, command)
if mov[0] == False: #invalid direction
print "You can't go in that direction"
elif mov[1] == True:#finished
print 'Congratulations - you made it!'
break
else: #can move, but not finished
position = mov[2]
poshis.append(position)
elif command == 'R': # reseting the maze to the first pos
position = (1, 1)
poshis = [position]
elif command == 'B': # back one move
if len(poshis) > 1:
poshis.pop()
position = poshis[-1]
elif command == 'L': # listing all possible leg dir
toggle = 0
result = ''
leg_list = get_legal_directions(maze, poshis[-1])
for Legal in leg_list:
if toggle:
result += ', '
result += Legal
else:
result += Legal
if not toggle:
toggle = 1
print result
elif command == 'Q': #quiting
m = raw_input('Are you sure you want to quit? [y] or n: ')
if m == 'y':
break
#print 'Are you sure you want to quit? [y] or n: '
#if raw_input == 'y':
# break
else: #invalid input
print 'Invalid Command:', command