JS realizes that the prompt box similar to QQ news pops up on the scheduled page_javascript skills

I also encountered a requirement when working on China Unicom's IOM project, which required that a prompt message pop up on the page every half hour (the message pops up in a form similar to QQ News). I found such information online at that time, but I can’t remember the source of the original text

Copy the code The code is as follows:

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