Summary of objective-C Memory Management

1. When you create an object using new, alloc, or copy, the Count retain of the object reaches 1. You must delete this object release or autolease. In this way, it can be cleared only when its lifecycle ends.

2. When you use other methods to obtain an object, you can think that it has retaken a count and autolease has fallen. You don't have to worry about cleaning problems related to it. But if you want to keep this object, you need to retain it and make sure that you release it later.

3. If you retain an object, you always need release or autolease.

These three rules are being writtenCodeYou must comply with the rules. Once you comply with the rules, there will be no memory leakage issues.