camera movement in unity code example

Example 1: unity camera movement script

using UnityEngine;

public class CameraController : MonoBehaviour {

    private float moveSpeed = 0.5f;
    private float scrollSpeed = 10f;

    void Update () {
        if (Input.GetAxisRaw("Horizontal") != 0 || Input.GetAxisRaw("Vertical") != 0) {
            transform.position += moveSpeed * new Vector3(Input.GetAxisRaw("Horizontal"), 0, Input.GetAxisRaw("Vertical"));
        }

        if (Input.GetAxis("Mouse ScrollWheel") != 0) {
            transform.position += scrollSpeed * new Vector3(0, -Input.GetAxis("Mouse ScrollWheel"), 0);
        }
    }

}

Example 2: how to code a move camera in unity

void Update()
 {
     if(Input.GetKey(KeyCode.RightArrow))
     {
         transform.Translate(new Vector3(speed * Time.deltaTime,0,0));
     }
     if(Input.GetKey(KeyCode.LeftArrow))
     {
         transform.Translate(new Vector3(-speed * Time.deltaTime,0,0));
     }
     if(Input.GetKey(KeyCode.DownArrow))
     {
         transform.Translate(new Vector3(0,-speed * Time.deltaTime,0));
     }
     if(Input.GetKey(KeyCode.UpArrow))
     {
         transform.Translate(new Vector3(0,speed * Time.deltaTime,0));
     }
 }