使用 while 循环计算列表中的元素 [英] Using while loops to count elements in a list

问题描述

places = ["Jack", "John", "Sochi"]
count=0
multi_word=0
place  = places[count]
while place != "Sochi" and count < len(places):
    if ' ' in place:
        multi_word += 1

    count += 1
    place = places[count]

print ('Number of cities before Sochi:', count)

我的代码应该打印 Sochi 之前的城市数量，不包括 Sochi .我不明白这行 (place =places[count]) 的作用，也不明白为什么我需要它两次.

My code should print the number of cities before Sochi excluding Sochi . I don't understand what this line (place = places[count]) does, nor do I understand why I need it twice.

推荐答案

foreach 将其整理好

foreach would neaten it up

places = ["Jack", "John", "Sochi"]
count = 0
for place in places:
    if ' ' in place:
        multi_word += 1
    if place == "Sochi":
        break
    count += 1

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