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/a974986042/article/details/84900690
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>使用jQuery完成省市二级联动</title>
<style type="text/css">
.top{
border: 1px solid red;
width: 32.9%;
height: 50px;
float: left;
}
#clear{
clear: both;
}
#menu{
border: 1px solid blue;
width: 99%;
height: 40px;
background-color: black;
}
#menu ul li{
display: inline;
color: white;
font-size: 19px;
}
#bottom{
text-align: center;
}
#contanier{
border: 1px solid red;
width: 99%;
height: 600px;
background: url(../img/regist_bg.jpg);
position: relative;
}
#content{
border: 5px solid gray;
width: 50%;
height: 60%;
position: absolute;
top: 100px;
left: 300px;
background-color: white;
padding-top: 50px;
}
</style>
<script type="text/javascript" src="../js/jquery-1.8.3.js" ></script>
<script>
$(function(){
//2.创建二维数组用于存储省份和城市
var cities = new Array(3);
cities[0] = new Array("武汉市","黄冈市","襄阳市","荆州市");
cities[1] = new Array("长沙市","郴州市","株洲市","岳阳市");
cities[2] = new Array("石家庄市","邯郸市","廊坊市","保定市");
cities[3] = new Array("郑州市","洛阳市","开封市","安阳市");
$("#province").change(function(){
//10.清除第二个下拉列表的内容
$("#city").empty();
//1.获取用户选择的省份
var val = this.value;
//alert(val);
//3.遍历二维数组中的省份
$.each(cities,function(i,n){
//alert(i+":"+n);
//4.判断用户选择的省份和遍历的省份
if(val==i){
//5.遍历该省份下的所有城市
$.each(cities[i], function(j,m) {
//alert(m);
//6.创建城市文本节点
var textNode = document.createTextNode(m);
//7.创建option元素节点
var opEle = document.createElement("option");
//8.将城市文本节点添加到option元素节点中去
$(opEle).append(textNode);
//9.将option元素节点追加到第二个下拉列表中去
$(opEle).appendTo($("#city"));
});
}
});
});
});
</script>
</head>
<body>
<div>
<!--1.logo部分的div-->
<div>
<!--切分为3个小的div-->
<div class="top">
<img src="../img/logo2.png" height="47px"/>
</div>
<div class="top">
<img src="../img/header.png" height="47px"/>
</div>
<div class="top" style="padding-top: 15px;height: 35px;">
<a href="#">登录</a>
<a href="#">注册</a>
<a href="#">购物车</a>
</div>
</div>
<!--清除浮动-->
<div id="clear">
</div>
<!--2.导航栏部分的div-->
<div id="menu">
<ul>
<li >首页</li>
<li >电脑办公</li>
<li >手机数码</li>
<li >孕婴保健</li>
<li >鞋靴箱包</li>
</ul>
</div>
<!--3.中间注册表单部分div-->
<div id="contanier">
<div id="content">
<table border="1" align="center" cellpadding="0" cellspacing="0" width="70%" height="70%" bgcolor="white">
<form method="get" action="#" onsubmit="return checkForm()">
<tr>
<td colspan="2" align="center">
<font size="5">会员注册</font>
</td>
</tr>
<tr>
<td>
用户名
</td>
<td>
<input type="text" name="username" id="username" onfocus="showTips('username','必须以字母开头')" onblur="check('username','用户名不能为空')" /><span id="usernamespan"></span>
</td>
</tr>
<tr>
<td>密码</td>
<td>
<input type="password" name="password" id="password" onfocus="showTips('password','密码长度不能低于6位！')" onblur="check('password','密码不能为空！')" /><span id="passwordspan"></span>
</td>
</tr>
<tr>
<td>确认密码</td>
<td>
<input type="password" name="repassword" />
</td>
</tr>
<tr>
<td>email</td>
<td>
<input type="text" name="email" id="email" />
</td>
</tr>
<tr>
<td>姓名</td>
<td>
<input type="text" name="name" />
</td>
</tr>
<!--1.编写HTML文件部分的内容-->
<tr>
<td>籍贯</td>
<td>
<!--2.确定事件，通过函数传参的方式拿到改变后的城市-->
<select id="province">
<option>--请选择--</option>
<option value="0">湖北</option>
<option value="1">湖南</option>
<option value="2">河北</option>
<option value="3">河南</option>
</select>
<select id="city">
</select>
</td>
</tr>
<tr>
<td>性别</td>
<td>
<input type="radio" name="sex" value="男"/>男
<input type="radio" name="sex" value="女"/>女
</td>
</tr>
<tr>
<td>出生日期</td>
<td>
<input type="text" name="birthday" />
</td>
</tr>
<tr>
<td>验证码</td>
<td>
<input type="text" name="yanzhengma" />
<img src="../img/yanzhengma.png" />
</td>
</tr>
<tr>
<td colspan="2">
<input type="submit" value="注册" />
</td>
</tr>
</form>
</table>
</div>
</div>
</div>
</body>
</html>