3个viewcontroller: A, B, C [A presentViewController: B animated: YES] [B presentViewController: C animated: YES] 在C中如何直接返回到A,当前我得做法: [c.presentingViewController.presentingViewContr...
1.有以下订单表Order(简表,XX...代表的数字一样,money和orderID与业务无关忽略处理,表数据在千万条): id username mac ip money orderID 1 mike 12:XX... 1.2.3.4 money orderID 2 leo EC:XX... 120.145.2.1 ...