Python while循环不继续答案

【问题标题】：Python while loop does not continuePython while循环不继续
【发布时间】：2016-04-25 22:25:00
【问题描述】：

程序应在回答“您要继续（Y/N）吗？”时不断要求用户输入标题和评论。是 Y。相反，它只询问用户一次。有人可以帮我弄清楚循环不继续吗？谢谢！

#!/usr/bin/env python

def main():

 listOfReviews = obtainListOfReviews()
 displayResults(listOfReviews)

def obtainListOfReviews():
 listOfReviews = []
 carryOn ='Y'
 while carryOn =='Y':
  title = raw_input("Enter title:")
  review = int(input("Enter review:"))

  st = MovieReview(title, review)
  listOfReviews.append(st)
  carryOn = raw_input("Do you want to continue?(Y/N)? ")
  carryOn = carryOn.upper()
  return listOfReviews

def displayResults(listOfReviews):
     for r in listOfReviews:
         print(r)

class MovieReview:
 def __init__(self, title = " ", review = 0):
  self._title = title
  self._review = review
 def setTitle(self, title):
  self._title = title
 def setReview(self, review):
  self._review = review
 def getTitle(self):
  return self._title
 def getReview(self):
  return self._review
 def __str__(self):
  return ("Title: " + str(self._title) + " \nreview: " + str(self._review))
main()

【问题讨论】：

因为你在while循环中有return
您的return 是while 循环的一部分。取消缩进。
return listOfReviews 导致函数obtainListOfReviews() 返回存储在listOfReviews 中的值，以分配给main() 中的变量listOfReviews。
如果你使用了合适的缩进级别，而不是单个空格，问题可能会更明显。

标签： python linux ubuntu while-loop pycharm

【解决方案1】：

“return listOfReviews”行的缩进错误：

def obtainListOfReviews():
 listOfReviews = []
 carryOn ='Y'
 while carryOn =='Y':
  title = raw_input("Enter title:")
  review = int(input("Enter review:"))

  st = MovieReview(title, review)
  listOfReviews.append(st)
  carryOn = raw_input("Do you want to continue?(Y/N)? ")
  carryOn = carryOn.upper()

 # Correct indentation
 return listOfReviews

【讨论】：