针对selectpicker实现的多级联动

$(document).on("change", "#c-county_id", function(){
    //变更后的回调事件
    var county_id = $(this).val();
    console.log(county_id)
    // 动态修改selectPage请求参数
    $('[name="row[street_id]_text"]').data('selectPageObject').option.params = function () {
        return {custom: {'county_id':county_id}};
    }
    $('#c-street_id').selectPageClear();
});