运行 ❯
获取您
自己的
网站
×
更改方向
保存代码
更改主题,深色/浅色
前往 Spaces
<!DOCTYPE html> <html> <body> <h1>HTML DOM Events</h1> <h2>The onmouseenter Event</h2> <p>Use the HTML DOM to assign an "onmouseenter" and "onmouseleave" event to a h1 element.</p> <h1 id="demo">Mouse over me</h1> <script> document.getElementById("demo").onmouseenter = function() {mouseEnter()}; document.getElementById("demo").onmouseleave = function() {mouseLeave()}; function mouseEnter() { document.getElementById("demo").style.color = "red"; } function mouseLeave() { document.getElementById("demo").style.color = "black"; } </script> </body> </html>