func isPassWord(string: String) {

? ? ?let allRegex:NSPredicate = NSPredicate(format: "SELF MATCHES %@", "^[\\x21-\\x7E]{6,16}$")

? ? ? let numberRegex:NSPredicate = NSPredicate(format: "SELF MATCHES %@", "^.*[0-9]+.*$")

? ? ?let letterRegex:NSPredicate = NSPredicate(format: "SELF MATCHES %@", "^.*[A-Za-z]+.*$")

? ? ?if numberRegex.evaluate(with: string) && letterRegex.evaluate(with: string){

? ? ? ? ? ?print(stri)

? ? ? ? ? ?if allRegex.evaluate(with: string){

? ? ? ? ? ? ? ? print(stri)

}

}

}

isPassWord(string: "isIS112")