objective-c 如何在Objective-C中获取字典中每个键的值？
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How to get the value for each key in dictionary in Objective-C?
提问by suse
I'm maintaining a NSMutableDictionarywhich holds key and value pair.Now i need to perform some operation for each value in it.How to retrive value from dictionary.
我正在维护一个NSMutableDictionary包含键和值对的对象。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。
// this is NSMutableDIctionary
NSMutableDictionary *dictobj = [[NSMutableDictionary alloc]init];
// in methodA
-(void)methodA
{
//get the value for each key and peform an operation on it.
}
How to proceed? plz help
如何进行？请帮忙
回答by dreamlax
for (id key in dictobj)
{
id value = [dictobj objectForKey:key];
[value doSomething];
}
回答by andyvn22
I'm not entirely clear what your question is asking, but you might be looking for:
我不完全清楚您的问题在问什么，但您可能正在寻找：
for (id currentValue in [dictobj allValues])
{
//stuff with currentValue
}
回答by Ravi Kumar
NSArray *array = [viewControllers allValues];
for (int i = 0; i<array.count; i++) {
MenuListingVC *vc = array[i];
[vc tableDataReload];
}
