W3School TIY Editor
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暗黑模式
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<!DOCTYPE html> <html> <body> <input type="reset" id="myReset" autofocus> <p>请点击“试一试”按钮，查看页面加载时重置按钮是否自动获得焦点。</p> <button onclick="myFunction()">试一试</button> <p id="demo"></p> <script> function myFunction() { var x = document.getElementById("myReset").autofocus; document.getElementById("demo").innerHTML = x; } </script> </body> </html>