1 func validateMobile(phoneNum:String)-> Bool {
 2 
 3     // 手机号以 13 14 15 18 开头   八个 \d 数字字符
 4 
 5     let phoneRegex = "^((13[0-9])|(17[0-9])|(14[^4,\\D])|(15[^4,\\D])|(18[0-9]))\\d{8}$|^1(7[0-9])\\d{8}$";
 6 
 7     let phoneTest = NSPredicate(format: "SELF MATCHES %@" , phoneRegex)
 8 
 9     return (phoneTest.evaluateWithObject(phoneNum));
10 
11 }