python中while循环的多个条件 [英] multiple conditions with while loop in python

问题描述

我在 python 中遇到了包含多个带有 while 循环的语句的问题.它在单个条件下工作得很好，但是当我包含多个条件时，循环不会终止.我在这里做错了吗?

I am having problems including multiple statements with while loop in python. It works perfectly fine with single condition but when i include multiple conditions, the loop does not terminate. Am i doing something wrong here?

name = raw_input("Please enter a word in the sentence (enter . ! or ? to end.)")

final = list()

while (name != ".") or (name != "!") or (name != "?"):
    final.append(name)
    print "...currently:", " ".join(final)
    name = raw_input("Please enter a word in the sentence (enter . ! or ? to end.)")
print " ".join(final)

推荐答案

需要使用和；如果满足所有条件，而不仅仅是一个条件，您希望循环继续:

You need to use and; you want the loop to continue if all conditions are met, not just one:

while (name != ".") and (name != "!") and (name != "?"):

但是您不需要括号.

最好在这里测试会员资格:

Better would be to test for membership here:

while name not in '.!?':

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