html How to block the built-in functions of mobile browser_html/css_WEB-ITnose

I made a webpage and browsed it on the mobile phone
There is an event of long pressing the picture, but mobile browsers such as UC and WeChat browsers will respond to the function of copying the picture and saving the picture. How can I block it in html?
Or is there a long Press event function

Thank you

Reply to discussion (solution)

Everyone went home for the New Year
None The answer is

It probably won’t work, many event responses are covered by the mobile operating system

Go check out jquery mobile and I can’t help you if you don’t have it. . . . . .

Then give up the function of long pressing the picture