You can drag both images and text into a regular form text field.
可以将图像和文本拖放到一个常规的文本域中。
If it's not available, you know that the request is made through a regular form post, and you should serve back a full page.
如果该字段无法获取，则表明请求是通过一个常规表单提交发出的，您应该返回一个完整的页面。
If it's not available, you know that the request is made through a regular form post, and you should serve back a full page.
如果该字段无法获取，则表明请求是通过一个常规表单提交发出的，您应该返回一个完整的页面。
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