python集合条件判断
时间: 2023-10-18 12:28:49 浏览: 40
在Python中,可以使用关键字`in`和`not in`来判断一个值是否包含在集合中。如果一个值在集合中存在,则返回True,否则返回False。例如,对于一个列表list1,可以使用`value in list1`来判断value是否在list1中,如果在则返回True,否则返回False。同样地,可以使用`value not in list1`来判断value是否不在list1中,如果不在则返回True,否则返回False。这种判断方式适用于各种集合类型,包括列表、字符串等等。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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