访问循环集合查看Swift

Question

我创建了这个数组：let yourShares = ["90%","40%", "23%","15%","10%"]然后来访问：

 for yourShare in yourShares {
        dataSource[0].yourShareTitle = "90%"
        dataSource[1].yourShareTitle = "40%"
        dataSource[2].yourShareTitle = "23%"
        dataSource[3].yourShareTitle = "10%"
    }

然后要访问它，我将此代码放在集合视图的扩展名

中

let yourShare = model.dataSource?[indexPath.row] cell.yourShareLabel.text = "Your Share \(yourShare!.yourShareTitle)" cell.titleLabel?.font = UIFont.systemFont(ofSize: 1)

问题是当我运行它时它只打印可选。为什么，我怎么能解决这个问题？ 〜谢谢

Answer 1

你需要打开它

if let yourShare = model.dataSource?[indexPath.row]?.yourShareTitle as? String {
        cell.yourShareLabel.text = "Your Share \(yourShare)"
        cell.titleLabel?.font = UIFont.systemFont(ofSize: 1)
}