本文实例为大家分享了jQuery实现简单三级联动的具体代码，供大家参考，具体内容如下
首先写一个JSON数据
[
{
"province": "吉林省",
"cities": [
{
"city": "长春市",
"counties": ["朝阳区", "经济开发区", "高新区"]
},
{
"city": "吉林市",
"counties": ["东城区", "经济开发区", "老城区"]
},
{
"city": "白山市",
"counties": ["二道区", "河东区", "高新区"]
}
]
},
{
"province": "辽宁省",
"cities": [
{
"city": "沈阳市",
"counties": ["朝阳区", "经济开发区", "高新区"]
},
{
"city": "大连市",
"counties": ["东城区", "经济开发区", "老城区"]
},
{
"city": "铁岭市",
"counties": ["二道区", "河东区", "高新区"]
}
]
},
{
"province": "山东省",
"cities": [
{
"city": "青岛市",
"counties": ["朝阳区", "经济开发区", "高新区"]
},
{
"city": "济南市",
"counties": ["东城区", "经济开发区", "老城区"]
},
{
"city": "威海市",
"counties": ["二道区", "河东区", "高新区"]
}
]
}
]
然后用Ajax动态获取JSON文件中的数据
完整代码
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8" /> <meta name="viewport" content="width=device-width, initial-scale=1.0" /> <title>三级联动</title> </head> <body> <!-- 三级联动 - 两个二级联动 --> <select id="province"> <option value="">---</option> </select> <select id="city"> <option value="">---</option> </select> <select id="county"> <option value="">---</option> </select> <script src="/UploadFiles/2021-04-02/jquery-1.12.4.js">效果如下
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。
