W3School TIY
编辑您的代码：
<!DOCTYPE html> <html> <head> <script> function lighton() { document.getElementById('myimage').src="../i/eg_bulbon.gif"/*tpa=http://www.layui1.com/i/eg_bulbon.gif*/; } function lightoff() { document.getElementById('myimage').src="../i/eg_bulboff.gif"/*tpa=http://www.layui1.com/i/eg_bulboff.gif*/; } </script> </head> <body> <img id="myimage" onmousedown="lighton()" onmouseup="lightoff()" src="../i/eg_bulboff.gif" /> <p>按住鼠标不放可以点亮这盏灯！</p> </body> </html>
查看结果: