拥有并发布Swift和Parse,在线教程已经更新到Swift1.2但是我收到错误,教程不是。在论坛或其他问题上没有任何内容。由于这里和其他学生,已经能够找到并解决一些小问题。但这个让我陷入困境。
提出: -
if(self.object!= nil){'!='不是前缀一元运算符"
var object: PFObject!
override func viewDidLoad() {
super.viewDidLoad()
if (self.object !=nil) {
self.dateField?.text = self.object["date"] as? String
self.detailsField?.text = self.object["details"] as? String
}else {
self.object = PFObject(className: "incident")
}
// Uncomment the following line to preserve selection between presentations
// self.clearsSelectionOnViewWillAppear = false
// Uncomment the following line to display an Edit button in the navigation bar for this view controller.
// self.navigationItem.rightBarButtonItem = self.editButtonItem()
}
答案 0 :(得分:2)
在!=和nil之间加一个空格。