The submission URL for the submit button is provided as part of the tag.
提交按钮的提交URL作为标签的一部分提供。
You might have noticed earlier that a URL for your form submission is already defined.
您可能已经注意到为表单提交定义了一个URL。
The submission will take your model instance and post it to the URL specified in the submission action attribute.
提交将把模型实例传递给提交动作属性中指定的URL。
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