how to make somthing move in unity code example

Example 1: how to make an object move in unity

Vector3 input = new Vector3 (Input.GetAxis("Horizontal"), 0 , Input.GetAxis("Vertical");
Vector3 dir = input.normalized;
Vecotr3 vel = dir * speed * Time.deltaTime;

transform.Translate(vel);

Example 2: how to make character move unity

float horizontal = Input.GetAxis("Horizontal");
 float vertical = Input.GetAxis("Vertical");
 float speed = 5.0f;
 
 void Update(){
     transform.position = new Vector3(horizontal, 0, vertical) * speed * Time.deltaTime;
 }