uniapp 获取api排序参数 应用筛选组件修改参数值，实现排序功能

uniapp api获取的排序参数如何使用筛选条件改变参数值

下面是html部分代码

<zb-dropdown-menu style="width: 100%">
            <zb-dropdown-item :options="option" v-model="value1" @change="change1">zb-dropdown-item>
            <zb-dropdown-item :options="option2" v-model="value2" @change="change2">zb-dropdown-item>
            <zb-dropdown-item :options="option3" v-model="value3" @change="change3">zb-dropdown-item>
        zb-dropdown-menu>

下面是JS部分代码

export default {

        data() {

            return {
                List: [],
                px: '0',
                sousuo: [],
                pageId: 1,
                value1: 0,
                value2: 'a',
                value3: 4,
                option: [{
                        text: '综合',
                        value: 0

                    },
                    {
                        text: '只看有券',
                        value: 1
                    },
                    {
                        text: '优惠券升序',
                        value: 2
                    },
                    {
                        text: '优惠券降序',
                        value: 3
                    }
                ],
                option2: [{
                        text: '价格',
                        value: 'a'
                    },
                    {
                        text: '价格升序',
                        value: 'b'
                    },
                    {
                        text: '价格降序',
                        value: 'c'
                    },
                ],
                option3: [{
                        text: '销量',
                        value: 4
                    },
                    {
                        text: '销量升序',
                        value: 5
                    },
                    {
                        text: '销量降序',
                        value: 6
                    },
                ],
                title: 'Hello'
            }
        },

        onLoad: function(e) { //页面加载事件//
            console.log(e.vvv)
            console.log(e.sort)
            var that = this;
            var obj = 0;
            var obj = this.px;
            this.sousuo = decodeURIComponent(e.vvv)
            uni.request({
                url: 'https://openapi.dataoke.com/api/goods/list-super-goods',
                method: "GET",
                data: {
                    appKey: '6736a7b20e87c',
                    type: 0,
                    version: 'v1.3.0',
                    pageId: 1,
                    keyWords: e.vvv, //搜索词
                    pageSize: 20,
                    sort: obj,  //改代码为0时是综合排序 1为销量从高到低排序





                },

                header: {

                },
                success: (res) => {
                    console.log(res.data);
                    that.List = res.data.data.list;




                },

            });




        },

如何让chenge1按钮点击切换后 改变sort的值 并且让排序数据