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  • Why can't search engines include content in mobile app platform? What is the technical principle?

    search engines, no matter google or bing, cannot search the content of mobile app platforms such as Wechat official account. It is said that the mobile platform is not open to search engine crawlers, so is this rejection based on the server of the mobile...

  • MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
    MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1b32efd-2be69.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
    MySQL Errno : 1021
    Message : Disk full (/tmp/#sql-temptable-64f5-1b32efd-2be69.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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