基于jQuery+JSON的省市联动效果

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$(function(){
    $("#city_1").citySelect({
        nodata:"none",
        required:false
    }); 
    $("#city_2").citySelect({
        prov:"北京",
        nodata:"none"
    });
    
    $("#city_3").citySelect({
        prov:"湖南", 
        city:"长沙"
    });
    $("#city_4").citySelect({
        prov:"湖南", 
        city:"长沙",
        dist:"岳麓区",
        nodata:"none"
    }); 
    
    $("#city_5").citySelect({
        url:{"citylist":[
                {"p":"前端技术","c":[{"n":"HTML"},{"n":"CSS","a":[{"s":"CSS2.0"},{"s":"CSS3.0"}]},{"n":"JAVASCIPT"}]},
                {"p":"编程语言","c":[{"n":"C"},{"n":"C++"},{"n":"Objective-C"},{"n":"PHP"},{"n":"JAVA"}]},
                {"p":"数据库","c":[{"n":"Mysql"},{"n":"SqlServer"},{"n":"Oracle"},{"n":"DB2"}]},
            ]},
        prov:"",
        city:"",
        dist:"",
        nodata:"none"
    });
});
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  <h2 class="top_title"><a href="http://www.helloweba.com/view-blog-188.html">基于jQuery+JSON的省市联动效果</a></h2>
  

  <div class="demo">
      <h3>直接调用</h3>
    <p>二级联动,默认选项为:请选择</p>
      <div id="city_1">
          <select class="prov"></select> 
        <select class="city" disabled="disabled"></select>
    </div>
    <p>三级联动,默认省份:北京,隐藏无数据的子级select</p>
    <div id="city_2">
          <select class="prov"></select> 
        <select class="city" disabled="disabled"></select>
        <select class="dist" disabled="disabled"></select>
    </div>
    <pre>
$("#city_1").citySelect({nodata:"none",required:false}); 
$("#city_2").citySelect({prov:"北京",nodata:"none"});
    </pre>
  </div>
  
  <div class="demo">
      <h3>设置省份、城市、地区(县)的默认值</h3>
    <p>二级联动</p>
      <div id="city_3">
          <select class="prov"></select> 
        <select class="city" disabled="disabled"></select>
    </div>
    <p>三级联动</p>
    <div id="city_4">
          <select class="prov"></select> 
        <select class="city" disabled="disabled"></select>
        <select class="dist" disabled="disabled"></select>
    </div>
    <pre>
$("#city_3").citySelect({prov:"湖南", city:"长沙"});
$("#city_4").citySelect({prov:"湖南", city:"长沙", dist:"岳麓区"}); 
    </pre>
  </div>
  
  <div class="demo">
      <h3>自定义下拉选项</h3>
      <div id="city_5">
          <select class="prov"></select>
        <select class="city" disabled="disabled"></select>
        <select class="dist" disabled="disabled"></select>
    </div>
    <pre>
$("#city_5").citySelect({
    url:{"citylist":[
        {"p":"前端技术","c":[{"n":"HTML"},{"n":"CSS","a":[{"s":"CSS2.0"},{"s":"CSS3.0"}]},{"n":"JAVASCIPT"}]},
        {"p":"编程语言","c":[{"n":"C"},{"n":"C++"},{"n":"Objective-C"},{"n":"PHP"},{"n":"JAVA"}]},
        {"p":"数据库","c":[{"n":"Mysql"},{"n":"SqlServer"},{"n":"Oracle"},{"n":"DB2"}]},
    ]},
    prov:"",
    city:"",
    dist:"",
    nodata:"none"
});
    </pre>
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本文转载自helloweba

下载源码:cityselect.zip

原文地址:https://www.cnblogs.com/shcolo/p/4968797.html