功能實現如題。如何將某個資料夾下的所有圖片找出來，這是將程式中一個截圖功能擷取到的所有圖片進行展示出來的功能需求，但是因為是通過GUI的方式，我感覺缺陷很大，下面有修改過的版本。

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

public class LoadAllImage : MonoBehaviour  
{  
    // 儲存獲取到的圖片  
    List<Texture2D> allTex2d = new List<Texture2D> ();  

    // Use this for initialization  
 

    void Start ()  
    {  
        load ();  
    }  

    void OnGUI ()  
    {  
        if (allTex2d.Count != 0) {  
            // 把儲存的圖片以Button的形式顯示出來  
            for (int i = 0; i < allTex2d.Count; i++) {  
                GUILayout.Button (allTex2d [i]);  
            }  
        }  
    }  

    void
 
 load ()  
    {  
        List<string> filePaths = new List<string> ();  
        string imgtype = "*.BMP|*.JPG|*.GIF|*.PNG";  
        string[] ImageType = imgtype.Split ('|');  
        for (int i = 0; i < ImageType.Length; i++) {  
            //獲取d盤中a資料夾下所有的圖片路徑  
            string
 
[] dirs = Directory.GetFiles (@"d:\\a", ImageType [i]);  
            for (int j = 0; j < dirs.Length; j++) {  
                filePaths.Add (dirs [j]);  
            }  
        }  

        for (int i = 0; i < filePaths.Count; i++) {  
            Texture2D tx = new Texture2D (100, 100);  
            tx.LoadImage (getImageByte (filePaths [i]));  
            allTex2d.Add (tx);  
        }  
    }  

    /// <summary>  
    /// 根據圖片路徑返回圖片的位元組流byte[]  
    /// </summary>  
    /// <param name="imagePath">圖片路徑</param>  
    /// <returns>返回的位元組流</returns>  
    private static byte[] getImageByte (string imagePath)  
    {  
        FileStream files = new FileStream (imagePath, FileMode.Open);  
        byte[] imgByte = new byte[files.Length];  
        files.Read (imgByte, 0, imgByte.Length);  
        files.Close ();  
        return imgByte;  
    }  

}  

 修改過後的版本一個是不是通過GUI去顯示所有的圖片，而是添加了一個ScrollRect，以Element的方式新增到其中，實現滾動，點選等多種功能，排版也更加清晰。

using UnityEngine;
using System.Collections.Generic;
using System.IO;
using UnityEngine.UI;

public class LoadAllPic : MonoBehaviour
{
    public GameObject StoreObj;

    // 儲存獲取到的圖片  
    List<Texture2D> allTex2d = new List<Texture2D>();

    // Use this for initialization  
    void Start()
    {
        load();
        for(int i = 0; i < allTex2d.Count; i++)
        {
            GameObject temp= GameObject.Instantiate(StoreObj, StoreObj.transform.position, Quaternion.identity);
            temp.GetComponent<Transform>().SetParent(StoreObj.transform.parent);
            Sprite sprite = Sprite.Create(allTex2d[i], new Rect(0, 0, allTex2d[i].width, allTex2d[i].height), new Vector2(0.5f, 0.5f));
            temp.GetComponent<Image>().sprite = sprite;
            temp.transform.name = "Element" + i;
        }
        StoreObj.SetActive(false);
    }


    void load()
    {
        List<string> filePaths = new List<string>();
        string imgtype = "*.BMP|*.JPG|*.GIF|*.PNG";
        string[] ImageType = imgtype.Split('|');
        for (int i = 0; i < ImageType.Length; i++)
        {
            //獲取Application.dataPath資料夾下所有的圖片路徑  
            string[] dirs = Directory.GetFiles((Application.dataPath+"/Screenshot"), ImageType[i]);
            for (int j = 0; j < dirs.Length; j++)
            {
                filePaths.Add(dirs[j]);
            }
        }

        for (int i = 0; i < filePaths.Count; i++)
        {
            Texture2D tx = new Texture2D(100, 100);
            tx.LoadImage(getImageByte(filePaths[i]));
            allTex2d.Add(tx);
        }
    }

    /// <summary>  
    /// 根據圖片路徑返回圖片的位元組流byte[]  
    /// </summary>  
    /// <param name="imagePath">圖片路徑</param>  
    /// <returns>返回的位元組流</returns>  
    private static byte[] getImageByte(string imagePath)
    {
        FileStream files = new FileStream(imagePath, FileMode.Open);
        byte[] imgByte = new byte[files.Length];
        files.Read(imgByte, 0, imgByte.Length);
        files.Close();
        return imgByte;
    }

}

 結構及最終實現如圖：