Question

如何实现自定义cell里面button的click事件

Answer 1

先说下代码怎么实现吧。取得cell里面的button（方法很多，最典型的就是tag）
然后就可以用下面的方法了。

addTarget:action:forControlEvents:

Adds a target and action for a particular event (or events) to an internal dispatch table.

- (void)addTarget:(id)target action:(SEL)action forControlEvents:(UIControlEvents)controlEvents
Parameters
target
The target object—that is, the object to which the action message is sent. If this is nil, the responder chain is searched for an object willing to respond to the action message.
action
A selector identifying an action message. It cannot be NULL.
controlEvents
A bitmask specifying the control events for which the action message is sent. See “Control Events” for bitmask constants.
Discussion
You may call this method multiple times, and you may specify multiple target-action pairs for a particular event. The action message may optionally include the sender and the event as parameters, in that order.

Availability
Available in iOS 2.0 and later.