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<!DOCTYPE html> <html> <head> <style> a:focus, a:active { color: green; } </style> </head> <body> <a id="myAnchor" href="https://www.begtut.com">访问begtut.com</a> <p>单击按钮以提供焦点和/或从上面的链接中移除焦点。</p> <input type="button" onclick="getfocus()" value="获取焦点"> <input type="button" onclick="losefocus()" value="失去焦点"> <script> function getfocus() { document.getElementById("myAnchor").focus(); } function losefocus() { document.getElementById("myAnchor").blur(); } </script> </body> </html>