Swift编译器错误命令由于信号而失败：分段错误：11

Question

clubComments.removeAllObjects()
let findClubCommentData:PFQuery = PFQuery(className: "testObject")

findClubCommentData.findObjectsInBackgroundWithBlock {
    (objects:[PFObject]?, error:NSError?) -> Void in
    if (error == nil && objects != nil) {
        for object:PFObject! in objects!{
            self.clubComments.addObject(object)
        }

        let array: NSArray = self.clubComments.reverseObjectEnumerator().allObjects
        self.clubComments = array as! NSMutableArray
        self.tableView.reloadData()

从此代码中获取错误...有关如何解决此问题的任何建议？我卡住了......

Answer 1

在Swift中始终使用本机集合类型，它可以避免这些错误。例如，Swift数组的函数reverse()比reverseObjectEnumerator().allObjects

更有效

将clubComments声明为

var  clubComments = [PFObject]()

然后尝试

clubComments.removeAll()
let findClubCommentData = PFQuery(className: "testObject")

findClubCommentData.findObjectsInBackgroundWithBlock {
            (objects:[PFObject]?, error:NSError?) -> Void in
     if error == nil {
         self.clubComments = objects!.reverse()
         self.tableView.reloadData()
     }
}