問題描述
是否可以用一個字符串和一個int來引用一個變量，像這樣:
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..
上面的代碼給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.
我也試過這個，但它不起作用(原因很明顯):
I also tried this, but it doesnt work (for quite obvious reasons):
int j = 1;
NSString *refString = [NSString stringWithFormat:@"number%i", j];
refString = 3;
我真的很掙扎，我知道如何在 Javascript 中做到這一點，但在 Obj-C 中卻不知道，這可能嗎?
Im really struggling with this, I know how to do it in Javascript, but not in Obj-C, is it possible?
推薦答案
這是一個反模式 我稱之為窮人陣列.更好的方法是使用像數組這樣的適當集合，而不是使用一堆秘密相關的變量.如果做得好，帶有數組的代碼通常也會更短更簡潔.
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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