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id是什么?int能否为id?如何封装成id?

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2021-12-26 20:15
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正确答案

id是任意对象类型int是整型,属于基本类型所以不是id因为int不是id,所以就通过转换的方式将int转换为id类型例如可以通过NSNumber封装成一个对象。


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