Question

我在Repl.it上运行这个程序用于分叉目的 - 很奇怪，它似乎不起作用，因为Repl.it自动运行然后停止程序。

found = False
i = 0 

capital = ["London","New Dehli","Jerusalem","Paris","Washington DC","Riyadh","Kaula Lumpur"]

user_search = ("Which capital do you wish to search for \n - ")
while found == False and i < len(capital):
  if user_search == capital[i]:
    print ("Capital found")
    found = True
  i= i+1

Answer 1

你没有得到输入，所以改变它：

user_search = input("Which capital do you wish to search for \n - ")

通过适当的缩进，间距和正确的拼写，它应该是：

found = False
i = 0 
capital = ["London", "New Delhi", "Jerusalem", "Paris", "Washington DC", "Riyadh", "Kuala Lumpur"]

user_search = input("Which capital do you wish to search for \n - ")

while found == False and i < len(capital):
    if user_search == capital[i]:
        print("Capital found")
        found = True
    i = i + 1

如果你没有while循环，就像其他人说的那样，你可以使用if statement和成员资格运算符in。

capital = ["London", "New Delhi", "Jerusalem", "Paris", "Washington DC", "Riyadh", "Kuala Lumpur"]
user_search = input("Which capital do you wish to search for \n - ")

if user_search in capital:
    print("Capital found")

Answer 2

如果你想要它输出你需要输入的任何东西，我建议你不要做while循环，你可以在列表中查找一个字符串，如下所示：

capital = ["London","New Dehli","Jerusalem","Paris","Washington DC","Riyadh","Kaula Lumpur"]
user_search = input("Which capital do you wish to search for \n - ")
if user_search in capital:
    print ("found it")

脚本立即运行并停止

2 个答案: