Swift 无法将类型“NSRange”（又名“NSRange”）的值转换为预期的参数类型“Range”（又名“Range”）

我的代码中有一个错误，例如无法将“NSRange”aka“\u NSRange”类型的值转换为预期的参数类型“Range”aka“Range”，但我不知道如何解决此问题。请任何人帮助我

在这里我张贴我的代码

NSUserDefaults.standardUserDefaults().setObject("Hey I have started using this Chat App", forKey: "Status")
            var strNumber: String = txtPhoneNumber.text!
            var myRange: NSRange = NSMakeRange(0, 2)
            var myRange1: NSRange = NSMakeRange(0, 1)
            var ran: String = strNumber.substringWithRange(myRange)  ------>  //This line error shows.
            var ran1: String = strNumber.substringWithRange(myRange1)
            if (ran == "00") || (ran == "60") || (ran == "62") || (ran == "65") || (ran == "91") || (ran == "44") {
                strNumber = strNumber.stringByReplacingOccurrencesOfString(ran, withString: "") as String
            }
            else if (ran1 == "0") {

                strNumber = strNumber.stringByReplacingOccurrencesOfString(ran1, withString: myRange1) as NSString
                //str_number = str_number.stringByReplacingOccurrencesOfString(ran1, withString: "", options: NSCaseInsensitiveSearch, range: myRange1)
            }

您应该将strNumber转换为NSString:var strNumber:NSString=txtPhoneNumber.text

更多信息：

substringWithRange方法适用于NSString类型

换线

var strNumber: NSString = txtPhoneNumber.text as! NSString

Swift 4：

首先将类型转换为字符串，然后在此类型转换的字符串上使用class方法

let typeCasteToStringFirst = textField.text as NSString?
let newString = typeCasteToStringFirst?.replacingCharacters(in: range, with: string)

---

非常感谢你的帮助，这对我很有用…@礼貌

let typeCasteToStringFirst = textField.text as NSString?
let newString = typeCasteToStringFirst?.replacingCharacters(in: range, with: string)