检查元素是否存在于3D数组Swift中

let targetElement = 5
var array3D = [[[1, 2, 3], [4, 5, 6]], [[7, 8, 9], [10, 11, 12]]]

var isElementExist = false

for i in 0..<array3D.count {
    for j in 0..<array3D[i].count {
        for k in 0..<array3D[i][j].count {
            if array3D[i][j][k] == targetElement {
                isElementExist = true
                break
            }
        }
        if isElementExist {
            break
        }
    }
    if isElementExist {
        break
    }
}

if isElementExist {
    print("元素存在于3D数组中")
} else {
    print("元素不存在于3D数组中")
}

let targetElement = 5
var array3D = [[[1, 2, 3], [4, 5, 6]], [[7, 8, 9], [10, 11, 12]]]

let isElementExist = array3D.contains { $0.contains { $0.contains(targetElement) } }

if isElementExist {
    print("元素存在于3D数组中")
} else {
    print("元素不存在于3D数组中")
}

func isElementExist(in array: [[[Int]]], target: Int) -> Bool {
    for element in array {
        if let subArray = element as? [[[Int]]] {
            if isElementExist(in: subArray, target: target) {
                return true
            }
        } else if let subArray = element as? [[Int]] {
            if subArray.contains { $0.contains(target) } {
                return true
            }
        } else if let subArray = element as? [Int] {
            if subArray.contains(target) {
                return true
            }
        }
    }
    return false
}

let targetElement = 5
var array3D = [[[1, 2, 3], [4, 5, 6]], [[7, 8, 9], [10, 11, 12]]]

if isElementExist(in: array3D, target: targetElement) {
    print("元素存在于3D数组中")
} else {
    print("元素不存在于3D数组中")
}