C# for while文

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class test : MonoBehaviour
{
void Start()
{
for (int i = 0; i < 5; ++i)
{
Debug.Log(i);
}

    int i = 0;
    while (i < 5)
    {
        Debug.Log(i);
        ++i;
    }
}

// Update is called once per frame
void Update()
{

}

}