Returns whether the multimap contains an entry with the key.

判断是否包含指定的键。

youdao

You can also modify the program to maintain a multimap: if you know the source of each link, you can automatically generate a map of the site hierarchy and interconnections.

您也可以修改该程序以保持一个多重映射：如果您知道每个链接的源，您可以自动生成网站层次和互连的映射。

youdao

You can also modify the program to maintain a multimap: if you know the source of each link, you can automatically generate a map of the site hierarchy and interconnections.

您也可以修改该程序以保持一个多重映射：如果您知道每个链接的源，您可以自动生成网站层次和互连的映射。

youdao