/// <summary>如果指定的Url正确则返回Url字符串，否则返回空字符串</summary>
/// <param name="url">指定的Url</param>
/// <returns>如果指定的Url正确则返回Url字符串，否则返回空字符串</returns>
public static string GetUrls(string url)
{
if (Often.IsUrl(url))
{
if (url.IndexOf("/", 8) == -1)
{
url += "/";
}
return(url);
}
return("");
}
/// <summary>根据url或本地路径返回图片对象</summary>
/// <param name="path">url或本地路径</param>
/// <returns>根据url或本地路径返回图片对象</returns>
public static Image GetImage(string path)
{
try
{
if (Often.IsUrl(path))
{
Uri uri = new Uri(path);
WebRequest req = WebRequest.Create(uri);
WebResponse resp = req.GetResponse();
Stream str = resp.GetResponseStream();
Image img = Image.FromStream(str);
return(img);
}
else if (File.Exists(path))
{
Image img = Image.FromFile(path);
return(img);
}
}
catch
{
}
return(null);
}