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关于NSDictionary 怎样取得值所对应的key

2025-04-08 09:23:06

推荐回答（1个）

回答1：

hm已是一个HashMap的引用。如果你知道当前的这个key，可以通过hm.get(key)方法来获得value。迹叮管顾攮该归双害晶获得key的方法hm.keySet();因为你不知道key是哪个其实该方法就是获得一个key的集合。具体可以结合以下例子看看，里面有个迭代器用于遍历的。

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