swift-正则验证手机号码

// 手机号验证正则表达式

 func validateMobile(phoneNum:String)-> Bool {

     // 手机号以 13 14 15 18 开头   八个 \d 数字字符

     let phoneRegex = "^((13[0-9])|(17[0-9])|(14[^4,\\D])|(15[^4,\\D])|(18[0-9]))\\d{8}$|^1(7[0-9])\\d{8}$";

     let phoneTest = NSPredicate(format: "SELF MATCHES %@" , phoneRegex)

     return (phoneTest.evaluateWithObject(phoneNum));

 }