swift - 访问 For in 循环 Collection View Swift

Question

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

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

然后为了访问它，我将此代码放入 Collection View 的扩展中

让 yourShare = model.dataSource?[indexPath.row] cell.yourShareLabel.text = "您的分享\(yourShare!.yourShareTitle)" cell.titleLabel?.font = UIFont.systemFont(ofSize: 1)

问题是当我运行它时它只是打印可选。为什么，我该如何解决这个问题？ 〜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)
}