目标C-内存管理问题? [英] Objective C - Memory management question?

问题描述

我知道，当我拥有设置为保留或复制的对象的属性时，必须执行以下操作.

I know that when i have a property for an object which is set to retain or copy i must do the following.

Object *o = [[Object alloc] init];
self.myObject = o;
[o release];

但是如果我没有为myObject定义属性怎么办?

but what if i don't define a property for myObject?

我可以进行以下操作而不会泄漏吗?

Can i do the following without having a leak?

为每个班级中的每个变量定义一个属性是否更好? 为什么?

Is it better to define a property for every variable I have in every class? Why??

myObject = [[Object alloc] init];

推荐答案

您可以做的是确保在将拥有该对象的变量分配给新实例之前，先释放先前分配的对象(该对象是另一个对象的保留版本，或者副本).

What you can do is ensure you release the previously allocated object before assigning the variable holding it to a new instance (be it a retained version of another object, or a copy of it).

如果您没有为其定义属性，请不要使用点语法.

If you don't define a property for it, don't use the dot syntax.

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