Map: a map is an associative array from a set of object keys to a collection of object values.

map型：map是一个从一组键值对象到一组值对象的关联数组。

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Map: a map is an associative array from a set of object keys to a collection of object values.

map型：map是一个从一组键值对象到一组值对象的关联数组。

youdao