Apple 代码中缺少发布版本？
在此 Apple 代码中： http://developer.apple.com/library /ios/#qa/qa1702/_index.html
我可以看到在init方法开始时分配的会话没有释放。
为什么 ？这是有原因的吗？
In this Apple code: http://developer.apple.com/library/ios/#qa/qa1702/_index.html
I can see that the session allocated at the start of the init method is not released.
Why ? Is there a reason to this ?
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我想到了几个可能的原因：
autorelease调用。init方法末尾获取session的 ivar 被声明为@property (assign)，因此他们故意希望保留它目前。如果我没记错的话，这是一种糟糕的做法 - 他们应该有autoreleased 会话并声明@property (retain)。释放会话。严格来说，这并不是不好的做法，但肯定会令人困惑且难以阅读，并且可能会导致以后维护中的错误（当有人失去对retain-release平衡的跟踪时）。无论如何，你是对的，这与良好的内存管理实践有些不一致。然而，很难确定它是否有明确的原因没有发布。
A couple possible reasons come to mind:
autoreleasecall later in the same snippet.sessionat the end of theinitmethod is declared@property (assign), and so they deliberately wanted to keep it retained for now. If I remember right, this is poor practice - they should haveautoreleased session and declared the@property (retain).releasethesessionlater. Not strictly poor practice, but certainly confusing and hard to read, and may lead to a bug in maintenance later (when someone loses track of theretain-releasebalance).In any event, you're right in that it's somewhat inconsistent with good memory management practices. It's hard to tell for sure, however, whether there's a definitive reason it's not released.