We also added three public methods that retrieve the size (i.e., the number of properties defined), retrieve a single element in the map, and update the map with a new element, respectively.

我们同时加入了3个公有方法来获取大小(例如，定义的属性个数)，获取map中的元素，以及更新map中对应的元素等。

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You cannot add more security methods. The maximum number of security methods have already been added.

您不能添加更多的安全措施。已经添加了最大数目的安全措施。

youdao

You cannot add more security methods. The maximum number of security methods have already been added.

您不能添加更多的安全措施。已经添加了最大数目的安全措施。

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