点击运行
<!DOCTYPE html> <html> <body> <img id="myImg" src="/zy/i/eg_bulboff.gif" /> <br><br> <button onclick="document.getElementById('myImg').src='/zy/i/eg_bulbon.gif'">On</button> <button onclick="document.getElementById('myImg').src='/zy/i/eg_bulboff.gif'">Off</button> </body> </html>
运行结果
