<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>JSDom获取图层节点</title>
</head>
<body>
<script type="text/javascript">
function getProvince(provinceValue) {
alert(provinceValue);
}
</script>
<select name="province" id="province" onchange="getProvince(this.value)" nam>
<option>--请选择省份--</option>
<option value="bj">北京市</option>
<option value="sh">上海</option>
<option value="tj">天津</option>
</select>
</body>
</html>
原文：https://www.cnblogs.com/god1/p/12115194.html