python - python函数中while循环的问题

Question

我有一个要求看电影的小应用程序。当评分超过 50 时，返回观看。如果没有，请选择另一部电影。虽然当我到达movieDec中的条件时，它不会回到函数的顶部来计算电影的分数。想不通这个

def getScore():
   choose = raw_input("pick a movie ")
   rt = RT()
   info = rt.search(choose)
   rating1 = info[0].get('ratings').get('critics_score')
   rating2 = info[0].get('ratings').get('audience_score')
   stars = (rating1 + rating2) / 2
   return rating1, rating2, stars


def movieDec():
   critic, aud, stars = getScore()
   print 'Critics gave it a %s' %critic
   print 'Audiences gave it a %s' %aud
   print 'The average rating is %s' %stars
   while stars < 50:
       print "That's no good, pick again"
       getScore()
    print 'Good choice.'

Answer 1

您没有更新stars循环中的变量。尝试：

while stars < 50:
   print "That's no good, pick again"
   critic, aud, stars = getScore()

Answer 2

在您的循环中，您忽略了的返回值getScore()：

   getScore()

将其更改为：

   critic, aud, stars = getScore()

Answer 3

上面这个更正的代码将第二次调用 getScore() 函数（如果星数 <50），但在循环如下所示之前它不会显示分数：

while stars < 50:
   print "That's no good, pick again"
   critic, aud, stars = getScore()
   print 'Critics gave it a %s' %critic
   print 'Audiences gave it a %s' %aud
   print 'The average rating is %s' %stars