版权声明：本文为博主原创文章，未经博主允许不得转载。 https://blog.csdn.net/diyinqian/article/details/86027780
<!DOCTYPE html>
<html>
<body>
<select onchange="_sel(this.options[this.options.selectedIndex])">
<option value="volvo">Volvo</option>
<option value="saab">Saab</option>
<option value="opel">Opel</option>
<option value="audi">Audi</option>
</select>
<script>
function _sel(val){
alert(val.innerHTML);
alert(val.value)
}
</script>
</body>
</html>