Unity3D实现批量下载图片功能

using System.IO;using UnityEngine;using System.Net;using System.Collections; public class Test : MonoBehaviour {   private string[] _urls=new string[10];  private string [] _localPath = new string[10];  // Use this for initialization void Start ()   {    for (int i = 0; i < _urls.Length; i++)    {      //所有图片的下载地址      _urls[i] = "http://192.168.1.41:8080/Test/picture/" + (i + 1).ToString() + ".jpg";      //所有图片的保存路径      _localPath[i] = Application.dataPath + "/Resources/" + (i + 1).ToString() + ".jpg";          } }   // Update is called once per frame  void Update()   {  }   void OnGUI()  {    if (GUI.Button(new Rect(0, 0, 100, 30), "下载所有图片"))    {      DownLoad();    }    //判断文件是否已下载    for (int i = 0; i < _urls.Length; i++)    {      if (File.Exists(_localPath[i]))      {        GUI.Button(new Rect(0, 30 * i+30, 50, 30), (i + 1).ToString());      }    }       }   //下载所有图片  private void DownLoad()  {    for (int i = 0; i < _urls.Length; i++)    {      DownLoadAllImages(_urls[i], _localPath[i]);    }  }    void DownLoadAllImages(string url, string localPath)  {    WebClient web = new WebClient();    web.DownloadFile(url, localPath);    //以下代码下载完成后执行  }}