通过cell中的Button来获取这个Cell的IndexPath
[cell.btn addTarget:self action:@selector(cellBtnClicked:event:) forControlEvents:UIControlEventTouchUpInside];
- (void)cellBtnClicked:(id)sender event:(id)event {
NSSet *touches =[event allTouches];
UITouch *touch =[touches anyObject];
CGPoint currentTouchPosition = [touch locationInView:_tableView];
NSIndexPath *indexPath= [_tableView indexPathForRowAtPoint:currentTouchPosition];
if (indexPath!= nil) {
// do something
}
}
