在swift 3.0中，这就是我们如何将Int转换为字符串和字符串转换为Int

//convert Integer to String in Swift 3.0

let theIntegerValue :Int = 123  // this can be var also
let theStringValue :String = String(theIntegerValue)


//convert String to Integere in Swift 3.0


let stringValue : String = "123"
let integerValue : Int = Int(stringValue)!

在swift 3.0中，这就是我们如何将Int转换为字符串和字符串转换为Int

//convert Integer to String in Swift 3.0

let theIntegerValue :Int = 123  // this can be var also
let theStringValue :String = String(theIntegerValue)


//convert String to Integere in Swift 3.0


let stringValue : String = "123"
let integerValue : Int = Int(stringValue)!

不管出于什么原因，这个公认的答案对我不起作用。我采用了这样的方法:

var myInt:Int = 10
var myString:String = toString(myInt)

将String转换为Int

var numberA = Int("10")

Print(numberA) // It will print 10

将Int转换为String

var numberA = 10

1日)

print("numberA is \(numberA)") // It will print 10

2)

var strSomeNumber = String(numberA)

or

var strSomeNumber = "\(numberA)"

斯威夫特2:

var num1 = 4
var numString = "56"
var sum2 = String(num1) + numString
var sum3 = Int(numString)

let a =123456888
var str = String(a)

OR

var str = a as! String