swift 从Any转换？进入Int32？

Posted 2021-05-19

//: Playground - noun: a place where people can play

import UIKit
import Foundation


//Пробовать с разными - раскоментаривать по очереди
var someString: String? = "bjbb"
//var someString: String? = "3456"
//var someString: Int? = 3456
//var someString: Int?

func CastToInt32(someId: Any?) -> Int32? {
	var identifier: Int32?
	if let stateCode = someId as? Int ?? Int(someId as? String ?? "") {
		identifier = Int32(stateCode)
		return identifier
	} else {
		return nil
	}
}

let myInt32 = CastToInt32(someId: someString)