Swift 3 数组 indexOf 函数缺失

Question

当我尝试打印包含任何对象的数组的索引时。它不建议使用 indexOf 函数。当我尝试手动输入时，它显示错误，我附上了屏幕截图。

但它适用于字符串数组。谁能帮我解决这个问题？

我也在这里展示我的代码

import UIKit

class ViewController: UIViewController {

    var arrayOfAnyObject: [Any] = [Any]()
    var arrayOfStringObject: [String] = [String]()

    override func viewDidLoad() {
        super.viewDidLoad()


         print("Index of string object array \(arrayOfStringObject.index(of: "anyString")!)")

         print("Index of any object array \(arrayOfAnyObject.index(of: "anyObject")!)")




        // Do any additional setup after loading the view, typically from a nib.
    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }


}

Answer 1

您可以在数组中设置您需要的类型（Int、String 等），或者在执行之前将 arrayOfAnyObject 转换为 AnyObject indexOf，像这样：

print("Index of any object array \((arrayOfAnyObject as AnyObject).index(of: "anyObject"))")

Swift 3 数组 indexOf 函数缺失

Swift 3 array indexOf function is missing

arrays

any

ios

swift