这是示例代码。
System.IO.MemoryStream ms = new System.IO.MemoryStream();System.IO.StreamWriter writer = new System.IO.StreamWriter(ms);writer.Write("Hello its my sample file");writer.Flush();writer.Dispose();ms.Position = 0;System.Net.Mime.ContentType ct = new System.Net.Mime.ContentType(System.Net.Mime.MediaTypeNames.Text.Plain);System.Net.Mail.Attachment attach = new System.Net.Mail.Attachment(ms, ct);attach.ContentDisposition.FileName = "myFile.txt";// I guess you know how to send email with an attachment// after sending emailms.Close();编辑1
您可以通过System.Net.Mime.MimeTypeNames指定其他文件类型，例如
System.Net.Mime.MediaTypeNames.Application.Pdf
根据 Mime类型， 您需要在FileName中指定实例扩展名
"myFile.pdf"
