Question

在我的代码结束时，我试图在我们获得3次罢工时将其提升为1。如果声明我在底部收到错误。它说预期的声明

//
//  ViewController.swift
//  helloWordDemo
//
//  Created by Developer on 6/8/14.
//  Copyright (c) 2014 AECApps. All rights reserved.
//

import UIKit

class ViewController: UIViewController {

override func viewDidLoad() {
    super.viewDidLoad()
    // Do any additional setup after loading the view, typically from a nib.
}

override func didReceiveMemoryWarning() {
    super.didReceiveMemoryWarning()
    // Dispose of any resources that can be recreated.
}
@IBOutlet var labelDispaly : UILabel = nil
// dispaly Strikes

var counter = 1

@IBAction func buttonPressed(sender : AnyObject) {

    labelDispaly.text = "Strikes \(counter++)"
}
//button to add strikes

@IBOutlet var OutsDispaly : UILabel = nil

var outsCounter = 1
//outs dispaly

@IBAction func outsButtonPressed(sender : AnyObject) {

    OutsDispaly.text = "Outs \(outsCounter++)"

}
//button to add outs
if counter = 3 {
    outsCounter ++
   }
}

Answer 1

问题是if语句不在函数内部。当语句在class之外时，这是可以的，但在这种情况下不是这样。编写一个函数来运行语句。将此添加到您的班级：

func updateOuts(){
    if counter == 3 {
        outsCounter++
    }
}

此外，在if语句中，您应该使用==而不是=。这是因为==比较了两个值，=设置了变量。

Swift Xcode 6开发人员棒球计数器

1 个答案: