A tampermonkey script, to add a code copy button to Stack Overflow, Github, Zhihu and other web sites, as long as the source code is wrapped in the <pre> html tag.

Please go to https://openuserjs.org/scripts/neulana/copy2clipboard or https://greasyfork.org/zh-CN/scripts/375274-copy2clipboard

https://github.com/*
https://stackoverflow.com/*
https://*.zhihu.com/*
https://www.jianshu.com/*
https://dev.to/*

If you find any website that not in the above list, you can add your websites at the top of the script.there is some steps:

1. Find the Tampermonkey extension in the Chrome;

2. Click the "administration panel" in the popup list;

3. Find the "copy2clipboard", click the "edit" in the "operation" on the right;

4. Add your websites at the top of the script, support for regular expressions, for example:

   // @include      https://example.com/*

5. Happy Copy!

If you feel good about it, please give me a star⭐.