html中的四级联动 jQuery四级联动下拉菜单代码

部分js代码

var $town = $('#demo3 select[name="town"]');

var townFormat = function(info){

$town.hide().empty();

if(info['code']%1e4&&info['code']<7e5){//是否为“区”且不是港澳台地区

$.ajax({

url:'http://passer-/data_location/town/'+info['code']+'.json',

dataType:'json',

success:function(town){

$town.show();

for(i in town){

$town.append(''+town[i]+'');

}

}

});

}

};

$('#demo3').citys({

province:'福建',

city:'厦门',

area:'思明',

onChange:function(info){

townFormat(info);

}

},function(api){

var info = api.getInfo();

townFormat(info);

});