如何在Windows 8.1通用应用程序中发送带有附件的电子邮件

EmailMessage objEmail = new EmailMessage();
objEmail.Subject = "Abundantcode Article";
var localAppFolder = Windows.Storage.ApplicationData.Current.LocalFolder;
var fileHandle = await localAppFolder.CreateFileAsync("AbundantcodeData.txt", Windows.Storage.CreationCollisionOption.ReplaceExisting);
objEmail.Attachments.Add(new EmailAttachment(fileHandle.Name, fileHandle));
await EmailManager.ShowComposeNewEmailAsync(objEmail);