原生H5界面，怎么跳转微信小程序

原生H5界面，怎么点击确定能跳转微信小程序呢，该怎么写还要传值给后台


<div class="hktshare">
            <div>客厅div> 
        div>
            <div class="del_mask" id="hktshare_pop" style="display: none;">
                <div class="del_block">
                  <div class="del_content">即将打开"微信"小程序div>
                  <div>
                     <div class="del_cancel" v-on:click="delhkt()">取消div>
                     <div class="del_sure" v-on:click="surehkt()">确定div>
                  div>
                div>
             div>
<script src="https://res.wx.qq.com/open/js/jweixin-1.3.2.js">script>

$(".hktshare").click(function(){
    $("#hktshare_pop").show();
 })


.hktshare{
    width: 2.2rem;
    height: 2.2rem;
    border-radius: 50%;
    background-color: #029dff;
    position: absolute;
    right: 1.5rem;
    top: 18rem;
    z-index: 99999999999999;
    color: white;
}
.hktshare div{
    margin: auto;
}

.del_mask {
    z-index: 20;
    background-color: rgba(0, 0, 0, 0.4);
}

.del_block {
    top: 6.67rem;
    position: absolute;
    border-radius: 0.2rem;
    background-color: white;
    width: 85%;
    text-align: center;
    margin: 0 7.5%;
}

.del_content {
    padding: 2rem 0.5rem;
    color: #212121;
    font-size: 0.6rem;
    font-weight: 600;
}

.del_cancel {
    float: left;
    line-height: 1.6rem;
    width: 49%;
    color: #212121;
    font-weight: 600;
}

.del_sure {
    float: left;
    line-height: 1.6rem;
    width: 49%;
    color: #4f7b97;
    font-weight: 600;
}

这个功能使用微信开发能力中的开放标签 [wx-open-launch-weapp] 可以实现。
示例：

<wx-open-launch-weapp
  id="launch-btn"
  username="gh_xxxxxxxx"
  path="pages/home/index?user=123&action=abc"
>
  <script type="text/wxtag-template">
    <style>.btn { padding: 12px }</style>
    <button class="btn">打开小程序</button>
  </script>
</wx-open-launch-weapp>
<script>
  var btn = document.getElementById('launch-btn');
  btn.addEventListener('launch', function (e) {
    console.log('success');
  });
  btn.addEventListener('error', function (e) {
    console.log('fail', e.detail);
  });
</script>

具体参数含义可以看官方文档：https://developers.weixin.qq.com/doc/offiaccount/OA_Web_Apps/Wechat_Open_Tag.html#21