欢迎您访问程序员文章站本站旨在为大家提供分享程序员计算机编程知识!
您现在的位置是: 首页  >  IT编程

仿美团--详情页与购物车开发

程序员文章站 2022-07-06 12:38:41
效果图 首先是目录结构 menu.html menu

效果图

仿美团--详情页与购物车开发

 

首先是目录结构

仿美团--详情页与购物车开发

 

 

menu.html

<!doctype html>
<html lang="en">
<head>
    <meta charset="utf-8">
    <title>menu</title>
    <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"><!-- 拷贝一份通用重置样式 -->
    <link rel="stylesheet" href="menu.css">
    <link rel="stylesheet" href="../common/common.css">
</head>
<body>
    <!-- 头部开始 -->
    <div class="nav">
        <div class="back-icon"></div>
        <h4 class="title">深圳麦当劳前海二餐厅</h4>
    </div>
    <!-- 头部结束 -->

    <!-- tab开始 -->
    <div class="tab-bar"></div>
    <!-- tab结束 -->

    <!-- 点菜内容开始 -->
    <div class="menu-inner">
        <!-- 左侧tab -->
        <div class="left-bar">
            <div class="left-bar-inner"></div>
        </div>
        <!-- 右侧商品 -->
        <div class="right-content">
            <p class="right-title"></p>
            <div class="right-list">
                <div class="right-list-inner"></div>
            </div>
        </div>
        <!-- 购物车 -->
        <div class="shop-bar"></div>
        <!-- 遮罩 -->
        <div class="mask hide"></div>
    </div>
    <!-- 点菜内容结束 -->

    <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='<div class="left-item">'+
                        '<div class="item-text">$getitemcontent</div>'+
                    '</div>';
        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 '<img class="item-icon" src='+data.icon+'>'+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='<div class="menu-item">'+
                        '<img src=$picture class="img">'+
                        '<div class="menu-item-right">'+
                            '<p class="item-title">$name</p>'+
                            '<p class="item-desc">$description</p>'+
                            '<p class="item-zan">$praise_content</p>'+
                            '<p class="item-price">¥$min_price<span class="unit">/$unit</span></p>'+
                        '</div>'+
                        '<div class="select-content">'+
                            '<div class="minus"></div>'+
                            '<div class="count">$choosecount</div>'+
                            '<div class="plus"></div>'+
                        '</div>'+
                    '</div>';

        $(".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='<div class="choose-content hide">'+
                            '<div class="content-top">'+
                                '<div class="clear-car">清空购物车</div>'+
                            '</div>'+
                        '</div>';

        //shopbar的购物车下部分模板字符串
        var itembottomtpl='<div class="bottom-content">'+
                                '<div class="shop-icon">'+
                                    '<div class="dot-num hide"></div>'+
                                '</div>'+
                                '<div class="price-content">'+
                                    '<p class="total-price">¥<span class="total-price-span">0</span></p>'+
                                    '<p class="other-price">另需配送&nbsp;¥<span class="shipping-fee">0</span></p>'+
                                '</div>'+
                                '<div class="submit-btn">去结算</div>'+
                            '</div>';

        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='<div class="choose-item">'+
                        '<div class="item-name">$name</div>'+
                        '<div class="price">¥<span class="total">$price</span></div>'+
                        '<div class="select-content">'+
                            '<div class="minus"></div>'+
                            '<div class="count">$choosecount</div>'+
                            '<div class="plus"></div>'+
                        '</div>'+
                    '</div>';

            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=$strtop.find(".count");
            var total=0;
            for(var i=0;i<counts.length;i++){
                total+=parseint($(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='<a class="$key btn-item" href="../$key/$key.html">'+
                        '<div class="tab-icon"></div>'+
                        '<div class="btn-name">$text</div>'+
                    '</a>';
        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='<a class="$key tab-item" href="../$key/$key.html">'+
                        '$text'+
                    '</a>';
        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==