python - Python 练习中断命令

Question

我需要快速帮助学校锻炼。我必须从以下代码中删除命令 break 并在没有该 break 命令的情况下使代码正常工作。我将非常感谢您的建议。

city = 'Brooklyn'
searchable = input('Insert searchable symbol: ')
for index,symbol in enumerate(city):    # for every index
    if symbol == searchable:            # control if examining is found
        print("Symbol has been found at index: ", index) # if yes, print index
        break # stop search
    else:
        print('Symbol',searchable,'is not represented in word',city)

Answer 1

尝试这个：

city = 'Brooklyn'

searchable = raw_input('Insert searchable symbol: ')

print [idx for idx, ele in enumerate(city) if searchable == ele]

Answer 2

strhasfind方法，它搜索字符串，如果找到则返回出现索引，如果没有则返回 -1：

city = 'Brooklyn'
searchable = input('Insert searchable symbol: ')
index = city.find(searchable)
if index >= 0:
    print("Symbol has been found at index: ", index) # if yes, print index
else:
    print('Symbol',searchable,'is not represented in word',city)