目标C对象按字符串名称命名吗? [英] Objective C object by string name?

问题描述

是否可以找到用特定字符串命名的对象.

Is it possible to find the object named with specific string.

例如，我可以在php中使用它

For example i can use that in php

$objectname="foo";
$foo="bar";
echo $$objectname="bar";

这可能吗?为此，objectbyname将是一个适当的功能.

is this possible? objectbyname would a proper function for this.

推荐答案

如果将命名对象存储为属性或某种字典，则有可能.然后您可以执行以下操作:

It could be possible if you stored named objects as properties or in some sort of dictionary. Then you could do something like this:

// Put object into dictionary
[dictionaryWithObjects setValue:someNamedObject forKey:@"someNamedObject"];

// and then retrieve it
id object = [dictionaryWithObjects valueForKey:@"someNamedObject"];

我不确定ObjectiveC是否支持该级别的元编程.

And I'm not sure ObjectiveC supports that level of metaprogramming.

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