[Guo Yan Jump Cliff] The play says arc under the weak and strong

Strong: As long as I strong quote you, you will not be dealloc. Weak: I just weak quote you. Only if there is someone else strong quoting you, my weak reference to you is valid.
This is like Guo Yan jumping the broken-hearted cliff, Guo Jing Huang Rong to arrive, all reach to seize the Guo Yan, formed 2 strong references. Guoff behind rushed, can only watch, is a weak reference, can see Guo Yan, is because there are Guo Jing Huang Rong 2 strong reference. If Guo Jing Huang Rong did not pull, two strong references to nil, then Guoff's eye references that weak references will immediately expire-Guo Yan jump into the deep cliff, Invisible (dealloc).

[Guo Yan Jump Cliff] The play says arc under the weak and strong