Net Core 下載圖片

直接上代碼

string url = https://www.cnblogs.com/images/logo_small.gif;
//獲取網站當前根目錄
string sWebRootFolder = hostingEnv.WebRootPath;
//保存圖片路徑
var savePath = string.Format("\\Uploads\\{0}\\{1}\\{2}\\", DateTime.Now.Year, DateTime.Now.Month.ToString("D2"), DateTime.Now.Day.ToString("D2"));
//文件名
string filename = System.IO.Path.GetFileName(url);
//擴展名
string extension = System.IO.Path.GetExtension(url);
savePath = sWebRootFolder + savePath;
//無夾創建
if (!Directory.Exists(savePath))
{
　　Directory.CreateDirectory(savePath);
}
WebClient mywebclient = new WebClient();
//下載文件
mywebclient.DownloadFile(url, savePath + filename);