WebApp package long Press Save Picture method

problem description

when you open the page and press the picture on top of the browser, you can save it as a picture, but when I package it out of App, there is no way to save the picture

the environmental background of the problems and what methods you have tried

related codes

what result do you expect? What is the error message actually seen?

are there any good plug-ins? Or method, try-webkit-touch-callout:none;

Nov.08,2021

can implement a long-press save function on its own, using touchstart and touchend

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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-64f5-1e32409-44198.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1e32409-44198.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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