Unity，如何一次更新一个UI元素

Question

I'm new to Unity and wants to make a Sudoku Solver. I've designed the input grid using input fields in the canvas. These input fields can display the numbers I generate in my grid script which will held the solving logic. My problem is that I want to update the input fields inside the loop to display(update all input fields to new value if there are one) when a value changes but can't get it right. Currently everything is displayed after the loop is done(in the next frame), but I need the values to update while the loop is running. Any ideas?

using System.Collections;
using System;
using System.Collections.Generic;
using System.Threading;
using UnityEngine;
using UnityEngine.UI;
using System.Diagnostics;
using Debug = UnityEngine.Debug;

public class SudokuGrid : MonoBehaviour
{
    public InputField v00, v01,v02, v03, v04, v05, v06, v07, v08;

    private int[,] arr = new int[9, 9];

    public void Upd()
    {
        v00.text = arr[0, 0].ToString();
        v01.text = arr[0, 1].ToString();
        v02.text = arr[0, 2].ToString();
        v03.text = arr[0, 3].ToString();
        v04.text = arr[0, 4].ToString();
        v05.text = arr[0, 5].ToString();
        v06.text = arr[0, 6].ToString();
        v07.text = arr[0, 7].ToString();
        v08.text = arr[0, 8].ToString();

    }
    void Start()
    {
    }

    void Update()
    {

        int c = 1;
        for (var a = 0; a < 9; a++)
        {
            for (var b = 0; b < 9; b++)
            {
                arr[a, b]  = c;
                c++;
                Upd();
                //need to update all the inputfields here to display on screen
            }
        }      
    }
}

Answer 1

This is why Coroutines exist

void Start()
{
    StartCoroutine(RevealNumber());
}

IEnumerator RevealNumber()
{

    int c = 1;
    for (var a = 0; a < 9; a++)
    {
        for (var b = 0; b < 9; b++)
        {
            arr[a, b]  = c;
            c++;
            Upd();
            //waits for 1 second.
            yield return new WaitForSeconds(1);
        }
    }      
}

Answer 2

Firstly, you can use 9x9 array of InputFields, its more readable

public InputField[,] InputFields;

Then you can update all the array using for loop:

for (int x = 0; x < 9; x++)
{
    for (int y = 0; y < 9; y++)
    {
        InputFields[x, y].text = arr[x, y];
    }
}      

OR you can detect user input in fields using on value change events to update only changed fields like this How to use the "On Value Change" in Unity3D Input Field UI component