jq常用功能

1.ajax获取和设置值

$('#select_goods_button').attr('data-goods-id',goodsItem.goods_id);

2.往页面插入dom元素或者值

$('#selected_group_goods').empty().html(html);

3.隐藏显示

$('.selected-group-goods').show();

4.序列化form表单

$('#handleposition').serialize(),

 5.弹窗的几种方式

--------if ($('#end_time').val() == ''){

            layer.msg('请输入活动结束时间', {icon: 2,time: 1000});

            return false;

}

--------layer.alert("服务器繁忙, 请联系管理员!");

--------layer.msg(data.msg, {icon: 1, time: 1000}, function(){

location.href = "{:U('Admin/Promotion/auction_list')}";

});

6.ajax拼接url

(1.)var url = "{:U('Promotion/search_goods',array('tpl'=>'select_goods','prom_type'=>1,'prom_id'=>$info[id]))}";

(2.)var url = "/index.php?m=Admin&c=promotion&a=change_prom_is_end&id="+id_value,

(3.)url:{:U('Promotion/search_goods')};data:{id:1,val:2}