The Add button appends a new input field to the form, the Remove button deletes the last field, and Send submits the form data to the server.
Add按钮将新的输入字段附加到表单，Remove 按钮删除上一个字段，Send向服务器提交表单数据。
The Add button appends a new input field to the form, the Remove button deletes the last field, and Send submits the form data to the server.
Add按钮将新的输入字段附加到表单，Remove 按钮删除上一个字段，Send向服务器提交表单数据。
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