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-[__NSCFDictionary setObject:forKey:]: mutating method sent to immutable object' 解决方法

2015-08-14 16:48 519 查看
-[__NSCFDictionary setObject:forKey:]: mutating method sent to immutable object' 解决方法:

错误:NSMutableDictionaryd =[[[NSUserDefaults standardUserDefaults] objectForKey:@"xxxx"] mutableCopy];

修改:NSMutableDictionaryd =[NSMutableDictionary dictionaryWithDictionary:[[NSUserDefaults standardUserDefaults]ValueForKey:@"xxxx"]];
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