xxxxxxxxxx<html><head><meta charset="utf-8"><title>W3Cschool教程(w3cschool.cn)</title></head><body><img id="image" src="/attachments/cover/cover_docker.png" width="160" height="120"><script>document.getElementById("image").src="/attachments/cover/cover_javascript.png";</script><p>原图片为 cover_docker.png,脚本将图片修改为 cover_javascript.png</p></body></html>