strong & weak 的理解
摘要：
1 import "ViewController.h" 2 3 @interface ViewController () 4 /*weak*/ 5 @property (nonatomic,weak)UISwitch *weakSwitch; 6 /*strong*/ 7 @property (nonatomic ,strong)UISwitch *strongSw... 阅读全文
posted @ 2016-07-29 13:40 Hello_IOS 阅读(681) 评论(0) 推荐(0) 编辑
