告诉打印命令仅将每个用户名依次追加到一个文件中。

tells the print command to append each username one after another to a file only.

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在此过程中，用户无需将她的用户名和密码告诉打印站点。

At no point did the user share her username and password with the printer site.

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您将添加一个获取用户名的文本框，以及一个 Submit 按钮，单击这个按钮，就会打印出 “Hello World from <user name>”。

You will add a text box that will take the user's name and a Submit button which, when clicked, will print "Hello World from <user name>."

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