Question

是的，所以即时尝试为一个tic tac toe游戏制作一个2d数组，并让viewcontrller没有名为：button0的成员，为什么我在尝试创建这个数组时得到错误

@IBOutlet weak var button0: UIButton!
@IBOutlet weak var button1: UIButton!
@IBOutlet weak var button2: UIButton!
@IBOutlet weak var button3: UIButton!
@IBOutlet weak var button4: UIButton!
@IBOutlet weak var button5: UIButton!
@IBOutlet weak var button6: UIButton!
@IBOutlet weak var button7: UIButton!
@IBOutlet weak var button8: UIButton!
let buttons = [
        [button0,button1,button2], //error comes from button0
        [button3,button4,button5],
        [button6,button7,button8]
    ]

Answer 1

将 btnArray 转换为UIButton，如下所示

var btnArray: [[UIButton]] = [
        [button0, button1, button2],
        [button3, button4, button5],
        [button6, button7, button8]
    ]

Answer 2

您无法在初始化阶段使用类成员，您应该在viewDidLoad中分配值：

<div class="vcard">
<div class="tel">
    12345555555
</div>

viewcontroller类型没有名为button0 tic tac toe的成员

2 个答案: