<html>
<head>
<meta charset="utf-8">
<script src="jquery-1.9.1.min.js"></script>
<style>
</style>
<script>
var pro=["河南","山东","黑龙江"];
var city=[["郑州","开封","新政","濮阳","平顶山","洛阳","三门峡"],["济南","日照","烟台","德州","聊城"],["哈尔滨","齐齐哈尔","佳木斯","牡丹江"]];
$(function(){
//初始化省份下拉列表
for(var i=0;i<pro.length;i++){
$("#province").append($("<option></option>").val(i+1).html(pro[i]));
}
//为省份下拉列表绑定change事件
$("#province").change(function(){
var index=$(this).val()-1;//获取当前省的下标
$("#city").prop("length",1);//清空原有的数据
for(var i=0;i<city[index].length;i++){//重新为市赋值
$("#city").append($("<option>").val(i+1).html(city[index][i]));
}
});
})
</script>
</head>
<body>
</head>
<body>
<div style="height: 200px;width: 300px;background-color: aquamarine;text-align: center" id="div1">
<select id="province">
<option value="0" selected>-请选择-</option>
</select>省
<select id="city">
<option value="0" selected>-请选择-</option>
</select>市
</body>
</html>
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