NSMutableArray对象的总大小 [英] Total Size of NSMutableArray object

问题描述

我有一个 NSMutableArray ，它包含一堆对象，我想知道的是多少内存是数组使用。看了几个地方后，我知道调用的大小，当我使它得到32位（这是 NSMutableArray 对象的大小自己）。

I've got an NSMutableArray that holds a bunch of objects, what I'm trying to figure out is how much memory is the array using. After looking at a couple of places I know about the size of call, and when I make it I get 32 bits (which is the size of the NSMutableArray object it self).

示例代码：

NSMutableArray *temp = [[NSMutableArray alloc]init];
[temp addObject:objectxyz];
[temp addObject:objectabc];
[temp addObject:object123];

现在我想知道大小：）

推荐答案

要获取数组中的对象数，请使用

To get the number of objects in the array, use

[temp count]

如果你想要数组的总内存使用，你必须循环，加起来每个对象使用多少内存，但我不认为一个通用的对象会给你它的大小。一般来说，你不应该真正担心内存使用。

If you want the total memory usage of the array, you'll have to loop through and add up how much memory each object uses, but I don't think that a generic object will give you its size. In general, you shouldn't really have to worry about memory usage, though.

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