'subscript(_:)' 不可用：不能用 Int 下标 String (Swift 5)

Question

我在这里只找到了一个答案。我的问题是我没有使用Characters，除非String 是一个字符集合。我试着把它变成String 即；

        let name = String(array[indexPath.section][indexPath.row])

但我得到同样的错误无法将类型“字符”的值分配给类型“字符串？”。

这是我的手机：

struct SectionStrings {
    let sections = ["Stuff", "More Stuff", "Best Stuff"]
}

struct ArrayStrings {
    let array = ["Little Stuff", "Bigger Stuff", "Biggest Stuff"]

}

struct DetailArrayStrings {
    let detailArray = ["Teeny Stuff", "Teentsie Weentsie Stuff", "Invisible Stuff"]

}

这是我的控制器：

let sections = SectionStrings().sections
var array = ArrayStrings().array
let detailArray = DetailArrayStrings().detailArray

 override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {

        let cell = tableView.dequeueReusableCell(withIdentifier: reuseIdentifier, for: indexPath) as! SettingsCell

        let name = array[indexPath.section][indexPath.row] // errors here
        cell.textLabel?.text = name
        cell.textLabel?.font = UIFont.boldSystemFont(ofSize: 17)
        cell.textLabel?.textColor = .white

        let detailName = detailArray[indexPath.section][indexPath.row] // and here
        cell.detailTextLabel?.text = detailName
        cell.detailTextLabel?.font = UIFont.systemFont(ofSize: 15)
        cell.detailTextLabel?.textColor = .white
        cell.detailTextLabel?.numberOfLines = 0

        cell.selectionStyle = .none
        cell.backgroundColor = .black

        return cell
    }

Answer 1

您应该只使用row 获得indexPath 所需的name，如下所示，

let name = array[indexPath.row]
cell.textLabel?.text = name
cell.textLabel?.font = UIFont.boldSystemFont(ofSize: 17)
cell.textLabel?.textColor = .white

let detailName = detailArray[indexPath.row]