在做tableviewcell的置顶的时候，关键代码如下

Question

 override func tableView(tableView: UITableView, editActionsForRowAtIndexPath indexPath: NSIndexPath) -> [AnyObject]? {
        //添加置顶按钮
        
          let topAction = UITableViewRowAction(style: .Default, title: "置顶") {
             (action: UITableViewRowAction!, indexPath: NSIndexPath!) -> Void in
             self.dataSource.exchangeObjectAtIndex(indexPath.row, withObjectAtIndex: 0)
            var first:NSIndexPath = NSIndexPath(index: 0)
            tableView.moveRowAtIndexPath(indexPath, toIndexPath: first)/***************崩在了这句****************/
        }            
        }
        
        return[topAction]
        
    }

Answer 1

     var first:NSIndexPath = NSIndexPath(index: 0)这个方法错了

Answer 2

http://blog.csdn.net/arodung/article/details/50846546

Answer 3

var first:NSIndexPath = NSIndexPath(forRow: 0, inSection: 0)