是否可以将NSdictionary对象转换为NSMutableDictionary？
[英]Is it ok to cast a NSdictionary object to NSMutableDictionary?
问题描述
Is it ok to cast a NSdictionary object to NSMutableDictionary? 
是否可以将NSdictionary对象转换为NSMutableDictionary？
NSDictionary *dict;
NSMutableDictionary *mDict = (NSMutableDictionary *)dict;
Tried this and it worked fine. 尝试了一下，它工作正常。
1 个解决方案
解决方案1
6 已采纳 2010-09-05 06:56:57
No it is not. 不它不是。 If you want a mutable dictionary, make one: 如果您想要可变的字典，请制作一个：
NSMutableDictionary* mutableDict = [dict mutableCopy];
Do not forget in accordance with the rules you own mutableDict and must release it when you are done with it. 不要忘记按照您拥有的mutableDict 规则进行 mutableDict并且必须在完成mutableDict其释放。
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