public string Upload(FormFile file, string index) { var fileName = file.FileName; var sPath = basePath + "\\images\\asn-check"; if (!Directory.Exists(sPath)) { Directory.CreateDirectory(sPath); } var i = fileName.LastIndexOf("."); var ext = fileName.Substring(i); var shortName = index + "-" + fileName; var sFileName = sPath + "\\" + shortName; var vName = "images/asn-check/" + shortName; FileInfo f = new FileInfo(sFileName); if (!f.Exists) { using (FileStream fs = new FileStream(file.ToString(), FileMode.Create)) { file.CopyTo(fs); System.Drawing.Bitmap bmp = new System.Drawing.Bitmap(fs);//将MemoryStream对象转换成Bitmap对象 bmp.Save(sFileName); } } return(vName); }