dex nan spa tar window 发的 head listen select
- <html>
- <head>
- <script type="text/javascript">
- window.onload = function() {
- var sel = document.getElementById("mySelect");
- if(sel&&sel.addEventListener){
- sel.addEventListener(‘change‘,function(e){
- var ev = e||window.event;
- var target = ev.target||ev.srcElement;
- alert(target.value);
- },false)
- }
- }
- </script>
- </head>
- <body>
- <form>
- Select your favorite fruit:
- <select id="mySelect">
- <option value="20">Apple</option>
- <option value="30">Orange</option>
- <option value="40">Pineapple</option>
- <option value="50">Banana</option>
- </select>
- <br /><br />
- <input type="button" value="Alert index of selected option">
- </form>
- </body>
- </html>
选择select里面某个option触发的事件
来源: http://www.bubuko.com/infodetail-2373061.html