python-3.x - 如果列表中的字符串以 (character) 结尾，如何删除它？

Question

您好，我正在尝试删除字符“+”

>>> a = ['eggs+', 'I don't want to remove this ', 'foo', 'spam+', 'bar+']
>>> a = [i[:-1] for i in a if i.ends with('+')]
>>> a
    ['eggs', 'spam', 'bar']
>>>

为什么“我不想删除这个”之类的东西会被删除，我该如何删除“+”并留下其他所有东西

>>>['eggs', 'I don't want to remove this ', 'foo', 'spam', 'bar']

Answer 1

尝试这个：

a = ['eggs+', 'I dont want to remove this ', 'foo', 'spam+', 'bar+']
a = [i[:-1] if i.endswith('+') else i for i in a]
a

['eggs', 'I dont want to remove this ', 'foo', 'spam', 'bar']

你有一些语法问题，if else 必须在迭代之前。