Swift 一维数组转二维数组

有些东西想着很简单，写的时候一下子又写不出来，尴尬😓！

方法一

  /// 一维数组转二维数组
    /// - Parameters:
    ///   - oneDArray: 一维数组
    ///   - rawCount: 被分割的个数
    /// - Returns: 转换后的二维数组
    private func convertToTwoDArrayFrom(oneDArray: [Any], rawCount: Int) -> [[Any]] {
        let twoDArray = stride(from: 0, to: oneDArray.count, by: rawCount).map { (index) -> [Any] in
            if (index + rawCount) > oneDArray.count {
                return Array(oneDArray[index...])
            } else {
                return Array(oneDArray[index..<index + rawCount])
            }
        }
        print("转换后的二维数组\(twoDArray)")
        return twoDArray
    }

方法二

private func convertToTwoDArrayFrom(oneDArray: [Any], rawCount: Int) -> [[Any]] {
        let totalCount = oneDArray.count
        var lineNum: Int = 0
        
        if totalCount % rawCount == 0 {
            lineNum = totalCount / rawCount
        } else {
            lineNum = Int(floor(Float(totalCount) / Float(rawCount) + 1.0))
        }
        
        var twoDArray: [[Any]] = []
        for index in 0..<lineNum {
            let tempArray = Array(oneDArray[(index * rawCount)..<(index * rawCount + rawCount)])
            twoDArray.append(tempArray)
        }
       
       return twoDArray
    }