摘要：
__block RACDisposable* dispose = [[RACObserve(self, price) skip:1]subscribeNext:^(NSNumber* x) { [dispose dispose]; }]; 阅读全文
摘要：
@property (assign,nonatomic) int price;@property (assign,nonatomic) int time;[RACObserve(self,price) subscribNext:(id x){}];1.仅调用price的set方法时，才会触发rac观... 阅读全文