answer = input('how are you')
if answer == 'good':
print('glad to hear it')
if answer == 'what?':
print('how are you?')
不使用break,如果用户输入'what?',如何再次从头开始?我如何只使用变量和循环?
答案 0 :(得分:1)
'''它一直循环直到答案是好的。没有使用任何标记'''
answer='#'
while(answer != 'good'):
answer = input('how are you\n')
if answer == 'good':
print('glad to hear it')
答案 1 :(得分:0)
这应该可以正常运作:
good = False
while not good:
answer = input('how are you?')
if answer == 'what?':
continue
if answer == 'good':
good = True
print('glad to hear it')
当变量good
变为True
时,循环停止。 continue
跳到循环的下一次迭代,但是,没有必要。离开它会向读者显示'what?'
是预期的输入。
现在,你说你不能使用break
,但是,如果可以的话,它会是这样的:
while True:
answer = input('how are you?')
if answer == 'what?':
continue
if answer == 'good':
print('glad to hear it')
break
答案 2 :(得分:0)
你不需要任何复杂的事情来实现这一点。
input = '' #nothing in input
while input != 'good': #true the first time
input = raw_input('how are you?') #assign user input to input
if input == 'good': #if it's good print message
print('glad to hear it')
或
input = 'what?' #what? in input
while input == 'what?': #true the first time
input = raw_input('how are you?') #assign user input to input
if input == 'good': #if it's good print message
print('glad to hear it')
else:
print('too bad')
第一种情况,如果您期望good
,则第二种情况,如果有任何回复,则what?
除外。