为了将其放置在一起，您需要更改服务和客户端实现来发送并接收附件。
To put it all together, you need to modify both the service and client implementations to send and receive attachments.
我们将发送一个员工的姓名及照片，这是一个附件，然后接收验证姓名和照片是否正确的响应。
We will send the name of an employee with a photo, which will be an attachment, and receive a response that verifies that the name and photo are correct.
电子邮件可能包含附件，用户需要打印接收的文件。
Email involves attachments, and users need to print files that they receive.
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