retain_count_有道手机词典

1.When retain count increase?
什么时候内存计数会增加？
dict.yoduao.com
2.Retain count -1: can somebody explain to me?
保持计数1：有人能解释给我吗？
dict.yoduao.com
3.The ownershippolicy is implemented through reference counting—typically called "retaincount" after the retain method. Each object has a retain count.
所有权政策是实现通过引用计数通常称为“保留计数”后保留方法。每一个对象都有一个保持计数。
dict.yoduao.com