NSMutableDictionary in iPhone

After adding the key value pairs in NSMutableDictionary, when i retrive开发者_运维知识库 the key/values from it, will that retrived key/value be removed from NSMutableDictionary? or is it stil maintained in NSMutableDictionary?

If you are using objectForkey to retrieve the value, the key/value will stay in the dictionary. If you would like to remove an object for a particular key from the dictionary, you need to use removeObjectForKey.

Unless you call removeObjectForKey or similar, it stays in there.