是否可以使用字符串和 int 引用变量?

问题描述

是否可以用一个字符串和一个int来引用一个变量，像这样:

Is it possible to reference a variable with a string and an int, like this:

    int number1;

    int j = 1;

    @"number%i", j = 3; //Hope this makes sense..

上面的代码给了我警告并且不起作用，怎么可能呢.

The code above gives me warnings and does not work, how could this be done.

我也试过这个，但它不起作用(原因很明显):

I also tried this, but it doesnt work (for quite obvious reasons):

    int j = 1;

    NSString *refString = [NSString stringWithFormat:@"number%i", j];

    refString = 3;

我真的很挣扎，我知道如何在 Javascript 中做到这一点，但在 Obj-C 中却不知道，这可能吗?

Im really struggling with this, I know how to do it in Javascript, but not in Obj-C, is it possible?

推荐答案

这是一个反模式 我称之为穷人阵列.更好的方法是使用像数组这样的适当集合，而不是使用一堆秘密相关的变量.如果做得好，带有数组的代码通常也会更短更简洁.

This is an anti-pattern I call the Poor Man's Array. The better way to do this is to use a proper collection like an array instead of a bunch of variables that are secretly related. Done right, the code with an array will usually be a lot shorter and cleaner too.

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