json - 无法将字符串类型的值转换为预期的参数类型 Int

Question

我正在玩代码。我在 GitHub ( https://github.com/avijeets/ConnectFour ) 上找到了这个问题，并被一个无法清除的错误彻底难住了。

错误是:

"Cannot convert value of type '[[CFCellState]]' to expected argument type 'Int'"

来自 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

试试这个:

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

为了使其正常工作，您可能需要从 ConnectFour.swift 文件中的这一行删除 private 关键字(查看周围第 #98 行):

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