标签:async
C# async 与 await 疑问
private void DownLoadFile(string path, EmailMessage email, Attachment at) { try { Attachment attachment = email.Attachments.Single(x => x.Conte……
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private void DownLoadFile(string path, EmailMessage email, Attachment at) { try { Attachment attachment = email.Attachments.Single(x => x.Conte……