如何在Objective-C中获取字典中每个键的值? [英] How to get the value for each key in dictionary in Objective-C?

问题描述

我正在维护一个 NSMutableDictionary ，它包含键和值对.现在我需要对其中的每个值执行一些操作.如何从字典中检索值.

I'm maintaining a NSMutableDictionary which holds key and value pair.Now i need to perform some operation for each value in it.How to retrive value from dictionary.

// this is NSMutableDIctionary 
NSMutableDictionary *dictobj = [[NSMutableDictionary alloc]init];
 // in methodA

-(void)methodA
{
   //get the value for each key and peform an operation on it.
}

如何进行?请帮忙

推荐答案

for (id key in dictobj)
{
    id value = [dictobj objectForKey:key];
    [value doSomething];
}

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