fmpq.com
源代码:
点击运行
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>Fmpq教程(fmpq.com)</title> </head> <body> <form> 按钮: <input type="button" id="firstbtn" value="OK"> <input type="button" id="secondbtn" value="OK"> </form> <p>点击下面的按钮取消上面的第一个按钮。</p> <button onclick="disableElement()">取消按钮</button> <script> function disableElement(){ document.getElementById("firstbtn").disabled=true; } </script> </body> </html>
运行结果