无法将字符串类型的值转换为预期的参数类型Int

Question

我在玩代码。我在GitHub上找到的(https://github.com/avijeets/ConnectFour)被一个我无法清除的错误彻底难住了。

错误是：

"无法将“[[CFCellState]]”类型的值转换为预期的参数类型“Int”"

VC顶部的代码，其中定义了CFCellState：

enum CFCellState: CustomStringConvertible {
    case empty
    case occupied(CFPlayer)

    var description: String {
        switch self {
        case .empty:
            return "empty"
        case .occupied(let player):
            return player.description
        }
    }
}

发生错误的代码：

self.init(player: current!, opponent: opponent!, columns:ConnectFour.boardFrom(json: queryItems[1].value!)!)

Answer 1

请尝试以下方法:

self.init(player: current!, opponent: opponent!, board: ConnectFour.boardFrom(json: queryItems[1].value!)!)

为了实现这一点，您可能需要从< code>ConnectFour.swift文件的这一行中删除< code>private关键字(查看第98行):

private init(player: CFPlayer, opponent: CFPlayer, board: [[CFCellState]]) { ....