列表中另一个常用的运算是过滤：根据某些用户定义的条件过滤列表中的项以创建一个较小的列表。

Another common operation on lists is filtering: creating a smaller list by filtering items in a list based on some user-defined criteria. Filtering is illustrated in Figure 5.

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列表中另一个常用的运算是过滤：根据某些用户定义的条件过滤列表中的项以创建一个较小的列表。

Another common operation on lists is filtering: creating a smaller list by filtering items in a list based on some user-defined criteria. Filtering is illustrated in Figure 5.

youdao