C# 获取外网图片并保存到相对应路径

C# 获取外网图片并保存到相对应路径
public static int SaveImageFromWeb(string imgUrl,string path,string fileName)
  ...{
   if(path.Equals(""))
    throw new Exception("未指定保存文件的路径");

   string imgName = imgUrl.ToString().Substring(imgUrl.ToString().LastIndexOf("/")+1);
   string defaultType = ".jpg";
   string[] imgTypes = new string[]...{".jpg",".jpeg",".png",".gif",".bmp"};
   string imgType = imgUrl.ToString().Substring(imgUrl.ToString().LastIndexOf("."));
   foreach (string it in imgTypes)
   ...{
    if (imgType.ToLower().Equals(it))
     break;
    if (it.Equals(".bmp"))
     imgType = defaultType;
   }

   HttpWebRequest request = (HttpWebRequest)WebRequest.Create(imgUrl);
   request.UserAgent = "Mozilla/6.0 (MSIE 6.0; Windows NT 5.1; Natas.Robot)";
   request.Timeout = 3000;

   WebResponse response = request.GetResponse();
   Stream stream = response.GetResponseStream();

   if( response.ContentType.ToLower().StartsWith("image/") )
   ...{
    byte[] arrayByte = new byte[1024];
    int imgLong = (int)response.ContentLength;
    int l = 0;

    if(fileName == "")
     fileName = imgName;

    FileStream fso = new FileStream(path+fileName+imgType,FileMode.Create);
    while(l    ...{
     int i = stream.Read(arrayByte,0,1024);
     fso.Write(arrayByte,0,i);
     l += i;
    }

    fso.Close();
    stream.Close();
    response.Close();

    return 1;
   }
   else
   ...{
    return 0;
   }
  }   <> <>

C# 获取外网图片并保存到相对应路径

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