How does the H5 page evoke the mobile phone soft keyboard as soon as it enters the page?

Mobile input focus cannot directly evoke the mobile phone keyboard, what is the related auxiliary operation? Simple H5 page, do not use any framework, how to automatically evoke the soft keyboard?

Feb.27,2021

<textarea placeholder="......" autofocus="autofocus"></textarea>

I found it on the Internet. Try it or not, give me a reply

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-64f5-1bc529e-51def.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1bc529e-51def.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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