What are the DEDE collection filtering rules?

What are the DEDE collection filtering rules?

DEDE collection filtering rules often used in the collection process of Dreamweaver DEDECMS

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Generally in DEDE During the collection process, you need to filter or delete, or comment out some other people's information, such as hyperlinks, pictures, etc., you need to use these filtering rules to comment out all the resources that you do not want to collect. This greatly reduces the amount of spam collected and takes up space.

{dede:trim}{/dede:trim} {dede:trim}{/dede:trim} {dede:trim}{/dede:trim} {dede:trim}

{/dede:trim} {dede:trim}