仿美团--详情页与购物车开发

效果图

仿美团--详情页与购物车开发_第1张图片

 

首先是目录结构

仿美团--详情页与购物车开发_第2张图片

 

 

menu.html

DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>menutitle>
    <meta name="viewport" content="width=device-width,initial-scale=1.0,maximum-scale=1.0,minimum-scale=1.0,user-scalable=no">
    <script>
        (function(){
            //这段代码放在所有的样式文件之前,设置html根元素的fontSize
            var docEl=document.documentElement;

            function setRem(){
                // 这个10不是固定的,只是计算出来的rem要和cssrem插件setting中设置的37.5保持一致
                // iphone6设备宽度是375,因此基准值刚好是10
                var rem=docEl.clientWidth/10;//获取基准值
                docEl.style.fontSize=rem+"px";//动态设置html根元素的fontSize
            }

            setRem();

            window.addEventListener("resize",setRem);

            //用户每次浏览页面的时候, 就会触发pagesshow方法(有兼容性问题)
            window.addEventListener("pageshow",function(e){
                // 使用e.presisted就是判断当前页面是不是在缓存中加载
                // 如果缓存中加载(就是为true的时候),重新设置rem
                if(e.persisted){
                    setRem();
                }
            });
        })();

    script>
    <link rel="stylesheet" href="../lib/reset.css">
    <link rel="stylesheet" href="menu.css">
    <link rel="stylesheet" href="../common/common.css">
head>
<body>
    
    <div class="nav">
        <div class="back-icon">div>
        <h4 class="title">深圳麦当劳前海二餐厅h4>
    div>
    

    
    <div class="tab-bar">div>
    

    
    <div class="menu-inner">
        
        <div class="left-bar">
            <div class="left-bar-inner">div>
        div>
        
        <div class="right-content">
            <p class="right-title">p>
            <div class="right-list">
                <div class="right-list-inner">div>
            div>
        div>
        
        <div class="shop-bar">div>
        
        <div class="mask hide">div>
    div>
    

    <script src="../lib/jquery.min.js">script>
    <script src="menu.js">script>
    <script src="../common/common.js">script>
body>
html>

menu.css

/*header-tab*/
.tab-bar{
    font-size:0.426667rem;
    display:flex;
    border-bottom:0.026667rem solid #f0f0f0;
    margin-top:1.706667rem;
}
.tab-bar .tab-item{
    flex:1;
    height:1.2rem;
    line-height:1.2rem;
    position: relative;
    color:#666;
    text-align:center;
    text-decoration: none;
}
.tab-bar .tab-item.active::after{
    content:"";
    display: block;
    position: absolute;
    width:1.6rem;
    height:0.106667rem;
    bottom:0;
    background:#ffd161;/*美团黄*/
    /*设置居中*/
    left:50%;
    -webkit-transform:translateX(-50%);
    transform:translateX(-50%);
}

/*menu-inner*/
.menu-inner{
    position: absolute;
    top:2.933333rem;
    left:0;
    right:0;
    bottom:0;
    display: flex;
    overflow:hidden;
}
.menu-inner .left-bar{
    width:2.266667rem;
    background:#efefef;
    overflow:auto;
    height:100%;
    -webkit-overflow-scrolling:touch;/*局部滚动,尤其是移动端ios*/
}
.menu-inner .left-bar-inner{
    padding-bottom:2.266667rem;
}
.menu-inner .left-item{
    font-size:0.373333rem;
    color:#656565;
    text-align:center;
    border-bottom:0.026667rem solid #bfbfbf;
    display: flex;
    justify-content: center;
    height:1.6rem;
}
.menu-inner .left-item.active{
    background:#fff;
}
.menu-inner .item-text{
    text-align:center;
    align-self:center;
}
.menu-inner .item-icon{
    width:0.533333rem;
    height:0.533333rem;
    display: inline-block;
    margin-right:0.16rem;
    vertical-align:-0.106667rem;
}
.menu-inner .right-content{
    flex:1;
    margin-left:0.266667rem;
    height:100%;
    overflow:hidden;
    -webkit-overflow-scrolling:touch;/*触屏滚动*/
}
.menu-inner .right-title{
    font-size:0.346667rem;
    color:#333;
    margin-top:0.266667rem;
    padding-left:0.106667rem;
    border-left:0.053333rem solid #ffd161;
}
.menu-inner .right-list{
    height:100%;
    overflow:auto;/*可滚动*/
}
.menu-inner .right-list-inner{
    font-size:0.426667rem;
    padding-bottom:2.266667rem;
}
.right-list-inner .menu-item{
    display: flex;
    padding:0.666667rem 0;
    border-bottom:0.026667rem solid #f0f0f0;
    position: relative;
}
.right-list-inner .img{
    width:1.653333rem;
    height:1.653333rem;
    margin-right:0.266667rem;
}
.right-list-inner .menu-item-right{
    flex:1;
}
.right-list-inner .item-title{
    font-size:0.426667rem;
    color:#2f2f2f;
}
.right-list-inner .item-desc,
.right-list-inner .item-zan{
    color:#a9a9a9;
    font-size:0.32rem;
    margin-top:0.16rem;
    line-height:0.373333rem;
    padding-right:0.106667rem;
}
.right-list-inner .item-desc{
    line-height:0.453333rem;
}
.right-list-inner .item-price{
    margin-top:0.266667rem;
    color:#fe4d3d;
    font-size:0.48rem;
}
.right-list-inner .unit{
    color:#a9a9a9;
    font-size:0.32rem;
}
.right-list-inner .select-content{
    position: absolute;
    right:0.24rem;
    bottom:0.56rem;
    display: flex;
}
.right-list-inner .minus{
    width:0.666667rem;
    height:0.666667rem;
    background-image:url(images/minus.png);    
    background-size:cover;
}
.right-list-inner .count{
    font-size:0.4rem;
    color:#2f2f2f;
    width:0.666667rem;
    height:0.666667rem;
    line-height:0.666667rem;
    margin:0 0.053333rem;
    text-align:center;
}
.right-list-inner .plus{
    width:0.666667rem;
    height:0.666667rem;
    background-image:url(images/plus.png);    
    background-size:cover;
}

/*shopbar*/
.shop-bar{
    position: absolute;
    bottom:0;
    left:0;
    right:0;
    z-index:99;
}
.shop-bar .choose-content{
    background:#fff;
}
.shop-bar .content-top{
    height:0.933333rem;
    background-color:#f4f4f4;
    font-size:0.293333rem;
    display: flex;
    align-items: center;
    justify-content: flex-end;
}
.shop-bar .clear-car{
    margin:0 0.133333rem 0 0.266667rem;
    position: relative;
}
.shop-bar .clear-car::after{
    content:"";
    width:0.346667rem;
    height:0.346667rem;
    display: block;
    background-image:url(images/clear.jpeg);
    background-size:cover;
    position: absolute;
    top:-0.026667rem;
    left:-0.373333rem;
}
.shop-bar .bottom-content{
    height:1.333333rem;
    display: flex;
    background:rgba(51,51,51,.9);
}
.shop-bar .shop-icon{
    width:1.466667rem;
    height:1.466667rem;
    background-image:url(images/shop-icon.png);
    background-size:cover;
    margin-top:-0.4rem;
    margin-left:0.32rem;
    position: relative;
}
.shop-bar .dot-num{
    position: absolute;
    background-color: #fb4e44;
    width:0.4rem;
    height:0.4rem;
    font-size:0.32rem;
    color:#fff;
    border:0.026667rem solid #fff;
    border-radius:50%;
    right:0;
    top:0.053333rem;
    text-align: center;
    line-height:0.4rem;
}
.shop-bar .price-content{
    flex:1;
    padding-top:0.213333rem;
    padding-left:0.186667rem;
}
.shop-bar .total-price{
    font-size:0.533333rem;
    color:#fff;
}
.shop-bar .total-price-span{

}
.shop-bar .other-price{
    font-size:0.32rem;
    color:#999;
    margin-top:0.053333rem;
}
.shop-bar .shipping-fee{

}
.shop-bar .submit-btn{
    width:2.933333rem;
    height:100%;
    background:#ffd161;
    color:#333;
    font-size:0.426667rem;
    line-height:1.333333rem;
    text-align:center;
}
.choose-item{
    display: flex;
    font-size:0.4rem;
    color:#2f2f2f;
    height:0.933333rem;
    align-items: center;
    padding:0.266667rem 0;
    border-bottom:0.026667rem solid #ddd;
}
.choose-item .item-name{
    flex:1;
    padding-left:0.266667rem;
}
.choose-item .price{
    margin:0 0.666667rem 0 0.133333rem;
}
.choose-item .total{

}
.choose-item .select-content{
    position: relative;
    margin-right:0.213333rem;
    display: flex;
}
.choose-item .minus{
    width:0.666667rem;
    height:0.666667rem;
    background-image:url(images/minus.png);    
    background-size:cover;
}
.choose-item .plus{
    width:0.666667rem;
    height:0.666667rem;
    background-image:url(images/plus.png);    
    background-size:cover;
}
.choose-item .count{
    font-size:0.4rem;
    color:#2f2f2f;
    width:0.666667rem;
    height:0.666667rem;
    line-height:0.666667rem;
    margin:0 0.053333rem;
    text-align:center;
}
.menu-inner .mask{
    position: fixed;
    left:0;
    right:0;
    bottom:0;
    top:0;
    background-color: rgba(0,0,0,.7);
}

menu.js

(function(){

    //加载左侧类目
    function initLeftBar(){
        //左侧类目的模板字符串
        var itemTpl='
'+ '
$getItemContent
'+ '
'; var itemHtml=""; var page=0;//当前页 var isLoading=false;//当前是否处于加载中 //获取列表数据 function getList(){ page++; isLoading=true; $.get("../json/food.json",function(data){ var list=data.data.food_spu_tags || []; window.food_spu_tags=list;//把数据挂载到window对象上,方便其他模块调用 list.forEach(function(item,index){ var str=itemTpl.replace("$getItemContent",getItemContent(item)); var $target=$(str); //将item数据挂载到left-item上面 $target.data("itemData",item); $(".left-bar-inner").append($target); }) $(".left-item").first().click();//默认显示第一个tab isLoading=false; window.shopBar.changeShippingPrice(data.data.poi_info.shipping_fee || 0);//更新价格 }) //关于图标的处理 function getItemContent(data){ if(data.icon){ return ''+data.name; }else{ return data.name; } } } getList();//默认先请求一次 //滚动加载 window.addEventListener("scroll",function(){ var clientHeight=document.documentElement.clientHeight;//视窗高度 var scrollHeight=document.body.scrollHeight;//body滚动过的总长 var scrollTop=document.documentElement.scrollTop || document.body.scrollTop;//body滚动过的总长 var preDis=30;//提前的预值 if((scrollTop+clientHeight)>=(scrollHeight-preDis)){ //自定义页面,一次最多滚动3页 if(page<3){ if(isLoading) return; getList(); }else{ $(".loading").text("加载完成"); } } }); //左侧tab点击事件 $(".menu-inner").on("click",".left-item",function(e){ var $target=$(e.currentTarget); //添加点击样式 $target.addClass("active"); $target.siblings().removeClass("active"); //将数据传给右侧详情列表 initRightContent($target.data("itemData"));//加载右侧商品 }) } //加载右侧商品 function initRightContent(data){ //右侧商品的模板字符串 var itemTpl=''; $(".right-list-inner").html(""); var list=data.spus || []; list.forEach(function(item,index){ //默认为0 if(!item.chooseCount){ item.chooseCount=0; } var str=itemTpl .replace("$picture",item.picture) .replace("$name",item.name) .replace("$description",item.description) .replace("$praise_content",item.praise_content) .replace("$min_price",item.min_price) .replace("$unit",item.unit) .replace("$chooseCount",item.chooseCount); var $target=$(str); $target.data("itemData",item);//把数据挂载在data属性上,方便以后获取 $(".right-list-inner").append($target); }); //右侧顶部title $(".right-title").text(data.name); //加号事件 $(".menu-item").on("click",".plus",function(e){ var $count=$(e.currentTarget).parent("").find(".count"); $count.text(parseInt($count.text()||"0")+1); //更新挂载的数据 var $item=$(e.currentTarget).parents(".menu-item").first(); var itemData=$item.data("itemData"); itemData.chooseCount++; window.shopBar.renderItems();//购物车渲染 }) //减号事件 $(".menu-item").on("click",".minus",function(e){ var $count=$(e.currentTarget).parent("").find(".count"); if($count.text()==0) return; $count.text(parseInt($count.text()||"0")-1); //更新挂载的数据 var $item=$(e.currentTarget).parents(".menu-item").first(); var itemData=$item.data("itemData"); itemData.chooseCount--; window.shopBar.renderItems();//购物车渲染 }) } //shopbar function initShopBar(){ //shopbar的购物车上部分模板字符串 var itemTopTpl='
'+ '
'+ '
清空购物车
'+ '
'+ '
'; //shopbar的购物车下部分模板字符串 var itemBottomTpl='
'+ '
'+ '
'+ '
'+ '
'+ '

0

'+ '

另需配送 ¥0

'+ '
'+ '
去结算
'+ '
'; var $strTop=$(itemTopTpl); var $strBottom=$(itemBottomTpl); $(".shop-bar").append($strTop); $(".shop-bar").append($strBottom); //渲染购物车数据 function renderItems(){ $strTop.find(".choose-item").remove();//每次操作之后先全部清空购物车 var list=window.food_spu_tags || []; var totalPrice=0; var tpl='
'+ '
$name
'+ '
$price
'+ '
'+ '
'+ '
$chooseCount
'+ '
'+ '
'+ '
'; list.forEach(function(item){ item.spus.forEach(function(_item){ if(_item.chooseCount>0){ var price=_item.chooseCount*_item.min_price; var row=tpl.replace("$name",_item.name) .replace("$price",price)//总价 .replace("$chooseCount",_item.chooseCount); totalPrice+=price; //挂载数据 var $row=$(row); $row.data("itemData",_item); $strTop.append($row); } }) window.shopBar.changeAllPrice(totalPrice);//更新总价 changeDot();//更新红点 }) } window.shopBar.renderItems=renderItems;//将该方法暴露到全局 //更新单商品总价 function changeShippingPrice(str){ $strBottom.find(".shipping-fee").text(str); } window.shopBar.changeShippingPrice=changeShippingPrice; //更新全商品总价 function changeAllPrice(str){ $strBottom.find(".total-price-span").text(str); } window.shopBar.changeAllPrice=changeAllPrice; //购物车里的加号事件 $strTop.on("click",".plus",function(e){ var $count=$(e.currentTarget).parent("").find(".count"); $count.text(parseInt($count.text()||"0")+1); //更新挂载的数据 var $item=$(e.currentTarget).parents(".choose-item").first(); var itemData=$item.data("itemData"); itemData.chooseCount++;//更新挂载数据,在列表里也会同步更新 window.shopBar.renderItems();//购物车渲染 //找到当前右侧详情的数据,进行联动 $(".left-item.active").click(); }) //购物车里的减号事件 $strTop.on("click",".minus",function(e){ var $count=$(e.currentTarget).parent("").find(".count"); if($count.text()==0) return; $count.text(parseInt($count.text()||"0")-1); //更新挂载的数据 var $item=$(e.currentTarget).parents(".choose-item").first(); var itemData=$item.data("itemData"); itemData.chooseCount--;//更新挂载数据,在列表里也会同步更新 window.shopBar.renderItems();//购物车渲染 //找到当前右侧详情的数据,进行联动 $(".left-item.active").click(); }) //点击显示或者隐藏购物车 $(".shop-icon").on("click",function(){ $(".mask").toggle(); $strTop.toggle(); }) //计算红点中的数量 function changeDot(){ var counts=$strTop.find(".count"); var total=0; for(var i=0;i){ total+=parseInt($(counts[i]).text()); } if(total>0){ $(".dot-num").show().text(total); }else{ $(".dot-num").hide(); } } } //暴露出来的方法 window.shopBar={}; function init(data){ initLeftBar();//加载左侧类目 initShopBar();//加载购物车 } init(); })();

common.css

/*header-tab*/
.tab-bar{
    font-size:0.426667rem;
    display:flex;
    border-bottom:0.026667rem solid #f0f0f0;
    margin-top:1.706667rem;
}
.tab-bar .tab-item{
    flex:1;
    height:1.2rem;
    line-height:1.2rem;
    position: relative;
    color:#666;
    text-align:center;
    text-decoration: none;
}
.tab-bar .tab-item.active::after{
    content:"";
    display: block;
    position: absolute;
    width:1.6rem;
    height:0.106667rem;
    bottom:0;
    background:#ffd161;/*美团黄*/
    /*设置居中*/
    left:50%;
    -webkit-transform:translateX(-50%);
    transform:translateX(-50%);
}

/*menu-inner*/
.menu-inner{
    position: absolute;
    top:2.933333rem;
    left:0;
    right:0;
    bottom:0;
    display: flex;
    overflow:hidden;
}
.menu-inner .left-bar{
    width:2.266667rem;
    background:#efefef;
    overflow:auto;
    height:100%;
    -webkit-overflow-scrolling:touch;/*局部滚动,尤其是移动端ios*/
}
.menu-inner .left-bar-inner{
    padding-bottom:2.266667rem;
}
.menu-inner .left-item{
    font-size:0.373333rem;
    color:#656565;
    text-align:center;
    border-bottom:0.026667rem solid #bfbfbf;
    display: flex;
    justify-content: center;
    height:1.6rem;
}
.menu-inner .left-item.active{
    background:#fff;
}
.menu-inner .item-text{
    text-align:center;
    align-self:center;
}
.menu-inner .item-icon{
    width:0.533333rem;
    height:0.533333rem;
    display: inline-block;
    margin-right:0.16rem;
    vertical-align:-0.106667rem;
}
.menu-inner .right-content{
    flex:1;
    margin-left:0.266667rem;
    height:100%;
    overflow:hidden;
    -webkit-overflow-scrolling:touch;/*触屏滚动*/
}
.menu-inner .right-title{
    font-size:0.346667rem;
    color:#333;
    margin-top:0.266667rem;
    padding-left:0.106667rem;
    border-left:0.053333rem solid #ffd161;
}
.menu-inner .right-list{
    height:100%;
    overflow:auto;/*可滚动*/
}
.menu-inner .right-list-inner{
    font-size:0.426667rem;
    padding-bottom:2.266667rem;
}
.right-list-inner .menu-item{
    display: flex;
    padding:0.666667rem 0;
    border-bottom:0.026667rem solid #f0f0f0;
    position: relative;
}
.right-list-inner .img{
    width:1.653333rem;
    height:1.653333rem;
    margin-right:0.266667rem;
}
.right-list-inner .menu-item-right{
    flex:1;
}
.right-list-inner .item-title{
    font-size:0.426667rem;
    color:#2f2f2f;
}
.right-list-inner .item-desc,
.right-list-inner .item-zan{
    color:#a9a9a9;
    font-size:0.32rem;
    margin-top:0.16rem;
    line-height:0.373333rem;
    padding-right:0.106667rem;
}
.right-list-inner .item-desc{
    line-height:0.453333rem;
}
.right-list-inner .item-price{
    margin-top:0.266667rem;
    color:#fe4d3d;
    font-size:0.48rem;
}
.right-list-inner .unit{
    color:#a9a9a9;
    font-size:0.32rem;
}
.right-list-inner .select-content{
    position: absolute;
    right:0.24rem;
    bottom:0.56rem;
    display: flex;
}
.right-list-inner .minus{
    width:0.666667rem;
    height:0.666667rem;
    background-image:url(images/minus.png);    
    background-size:cover;
}
.right-list-inner .count{
    font-size:0.4rem;
    color:#2f2f2f;
    width:0.666667rem;
    height:0.666667rem;
    line-height:0.666667rem;
    margin:0 0.053333rem;
    text-align:center;
}
.right-list-inner .plus{
    width:0.666667rem;
    height:0.666667rem;
    background-image:url(images/plus.png);    
    background-size:cover;
}

/*shopbar*/
.shop-bar{
    position: absolute;
    bottom:0;
    left:0;
    right:0;
    z-index:99;
}
.shop-bar .choose-content{
    background:#fff;
}
.shop-bar .content-top{
    height:0.933333rem;
    background-color:#f4f4f4;
    font-size:0.293333rem;
    display: flex;
    align-items: center;
    justify-content: flex-end;
}
.shop-bar .clear-car{
    margin:0 0.133333rem 0 0.266667rem;
    position: relative;
}
.shop-bar .clear-car::after{
    content:"";
    width:0.346667rem;
    height:0.346667rem;
    display: block;
    background-image:url(images/clear.jpeg);
    background-size:cover;
    position: absolute;
    top:-0.026667rem;
    left:-0.373333rem;
}
.shop-bar .bottom-content{
    height:1.333333rem;
    display: flex;
    background:rgba(51,51,51,.9);
}
.shop-bar .shop-icon{
    width:1.466667rem;
    height:1.466667rem;
    background-image:url(images/shop-icon.png);
    background-size:cover;
    margin-top:-0.4rem;
    margin-left:0.32rem;
    position: relative;
}
.shop-bar .dot-num{
    position: absolute;
    background-color: #fb4e44;
    width:0.4rem;
    height:0.4rem;
    font-size:0.32rem;
    color:#fff;
    border:0.026667rem solid #fff;
    border-radius:50%;
    right:0;
    top:0.053333rem;
    text-align: center;
    line-height:0.4rem;
}
.shop-bar .price-content{
    flex:1;
    padding-top:0.213333rem;
    padding-left:0.186667rem;
}
.shop-bar .total-price{
    font-size:0.533333rem;
    color:#fff;
}
.shop-bar .total-price-span{

}
.shop-bar .other-price{
    font-size:0.32rem;
    color:#999;
    margin-top:0.053333rem;
}
.shop-bar .shipping-fee{

}
.shop-bar .submit-btn{
    width:2.933333rem;
    height:100%;
    background:#ffd161;
    color:#333;
    font-size:0.426667rem;
    line-height:1.333333rem;
    text-align:center;
}
.choose-item{
    display: flex;
    font-size:0.4rem;
    color:#2f2f2f;
    height:0.933333rem;
    align-items: center;
    padding:0.266667rem 0;
    border-bottom:0.026667rem solid #ddd;
}
.choose-item .item-name{
    flex:1;
    padding-left:0.266667rem;
}
.choose-item .price{
    margin:0 0.666667rem 0 0.133333rem;
}
.choose-item .total{

}
.choose-item .select-content{
    position: relative;
    margin-right:0.213333rem;
    display: flex;
}
.choose-item .minus{
    width:0.666667rem;
    height:0.666667rem;
    background-image:url(images/minus.png);    
    background-size:cover;
}
.choose-item .plus{
    width:0.666667rem;
    height:0.666667rem;
    background-image:url(images/plus.png);    
    background-size:cover;
}
.choose-item .count{
    font-size:0.4rem;
    color:#2f2f2f;
    width:0.666667rem;
    height:0.666667rem;
    line-height:0.666667rem;
    margin:0 0.053333rem;
    text-align:center;
}
.menu-inner .mask{
    position: fixed;
    left:0;
    right:0;
    bottom:0;
    top:0;
    background-color: rgba(0,0,0,.7);
}

common.js

(function(){

    //加载底部菜单
    function initBottomBar(){
        //底部菜单的模板字符串
        var itemTpl=''+
                        '
'+ '
$text
'+ '
'; var items=[{ key:"index", text:"首页" },{ key:"order", text:"订单" },{ key:"my", text:"我的" }]; var str=""; items.forEach(function(item){ str+=itemTpl.replace(/\$key/g,item.key)//正则解决全局替换的问题 .replace("$text",item.text); }); $(".bottom-bar").append(str); //判断当前属于哪个页面 var arr=window.location.pathname.split("/"); var page=arr[arr.length-1].replace(".html","");//最后一个元素,去掉.html page=page==""?"index":page;//默认显示首页 $("a.btn-item").removeClass("active"); $("a."+page).addClass("active"); } //加载menu页的头部 function initTabBar(){ //menu页的模板字符串 var itemTpl=''+ '$text'+ ''; var items=[{ key:"menu", text:"点菜" },{ key:"comment", text:"评价" },{ key:"restaurant", text:"商家" }]; var str=""; items.forEach(function(item){ str+=itemTpl.replace(/\$key/g,item.key)//正则解决全局替换的问题 .replace("$text",item.text); }); $(".tab-bar").append(str); //判断当前属于哪个页面 var arr=window.location.pathname.split("/"); var page=arr[arr.length-1].replace(".html","");//最后一个元素,去掉.html $("a."+page).addClass("active"); } function init(){ initBottomBar();//加载底部菜单 initTabBar();//加载menu页的头部 } init(); })();

food.json

 太多了放不上来,大家自己琢磨吧==

 

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