Scope属性也是一个必填项，但已被自动填写上。
The Scope attribute is also mandatory, but is filled in automatically.
Xforms 表单使用 Xpath 功能实现了自动填写的文本框。
XPath functions appear in this XForms form to provide the auto-filling text box.
Connection URL：在填写完以上信息时，应该会自动填写这个字段。
Connection URL: When you fill in the above information, the Connection URL field should get filled in automatically.
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