包括全选反选、数据的统计和本地持久化的处理。
html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<link rel="stylesheet" href="./css/inputnumber.css" />
<link rel="stylesheet" href="./css/index.css" />
<title>购物车</title>
</head>
<body>
<div class="app-container" id="app">
<!-- 顶部banner -->
<div class="banner-box"><img src="img/fruit.jpg" alt="" /></div>
<!-- 面包屑 -->
<div class="breadcrumb">
<span>🏠</span>
/
<span>购物车</span>
</div>
<!-- 购物车主体 -->
<div class="main" v-if="fruitList.length>0">
<div class="table">
<!-- 头部 -->
<div class="thead">
<div class="tr">
<div class="th">选中</div>
<div class="th th-pic">图片</div>
<div class="th">单价</div>
<div class="th num-th">个数</div>
<div class="th">小计</div>
<div class="th">操作</div>
</div>
</div>
<!-- 身体 -->
<div class="tbody" v-for="(item,index) in fruitList" :key="item.id">
<div class="tr" :class="{active:item.isChecked}">
<div class="td"><input type="checkbox" v-model="item.isChecked" /></div>
<div class="td"><img :src="item.icon" alt="" /></div>
<div class="td">{{item.price}}</div>
<div class="td">
<div class="my-input-number">
<button class="decrease" @click="item.num-=1" :disabled="item.num<=0"> - </button>
<span class="my-input__inner">{{item.num}}</span>
<button class="increase" @click="add(item.id)"> + </button>
</div>
</div>
<div class="td">{{item.num*item.price}}</div>
<div class="td"><button @click="del(item.id)">删除</button></div>
</div>
</div>
</div>
<!-- 底部 -->
<div class="bottom">
<!-- 全选 -->
<label class="check-all">
<input type="checkbox" v-model="isAll"/>
全选
</label>
<div class="right-box">
<!-- 所有商品总价 -->
<span class="price-box">总价 : ¥ <span class="price">{{allMoney}}</span></span>
<!-- 结算按钮 -->
<button class="pay">结算( {{allNum}} )</button>
</div>
</div>
</div>
<!-- 空车 -->
<div class="empty" v-else>🛒空空如也</div>
</div>
<script src="https://cdn.jsdelivr.net/npm/vue@2/dist/vue.js"></script>
<script>
const defaultArr = [
{
id: 1,
icon: "img/火龙果.png",
isChecked: true,
num: 2,
price: 6,
},
{
id: 2,
icon: 'img/荔枝.png',
isChecked: false,
num: 7,
price: 20,
},
{
id: 3,
icon: 'img/榴莲.png',
isChecked: false,
num: 3,
price: 40,
},
{
id: 4,
icon: 'img/鸭梨.png',
isChecked: true,
num: 10,
price: 3,
},
{
id: 5,
icon: 'img/樱桃.png',
isChecked: false,
num: 20,
price: 34,
},
]
const app = new Vue({
el: '#app',
data: {
// 水果列表
fruitList:JSON.parse(localStorage.getItem('list'))||defaultArr
},
methods: {
del (id){
this.fruitList = this.fruitList.filter(item =>item.id!=id)
},
add(id){
const fruit = this.fruitList.find(item => item.id == id)
fruit.num += 1
}
},
computed:{
isAll:{
get(){
return this.fruitList.every(item => item.isChecked)
},
set(value){
this.fruitList.forEach(item => {
item.isChecked = value
});
}
},
allMoney(){
return this.fruitList.reduce((sum,item) => {
if(item.isChecked){
return sum+item.num*item.price
}
else{
return sum
}
},0)
},
allNum(){
return this.fruitList.reduce((sum,item) => {
if(item.isChecked){
return sum+item.num
}
else{
return sum
}
},0)
}
},
watch:{
fruitList:{
deep:true,
handler(newValue){
localStorage.setItem('list',JSON.stringify(newValue))
}
}
}
})
</script>
</body>
</html>
css
index
.app-container {
padding-bottom: 300px;
width: 800px;
margin: 0 auto;
}
@media screen and (max-width: 800px) {
.app-container {
width: 600px;
}
}
.app-container .banner-box {
border-radius: 20px;
overflow: hidden;
margin-bottom: 10px;
}
.app-container .banner-box img {
width: 100%;
}
.app-container .nav-box {
background: #ddedec;
height: 60px;
border-radius: 10px;
padding-left: 20px;
display: flex;
align-items: center;
}
.app-container .nav-box .my-nav {
display: inline-block;
background: #5fca71;
border-radius: 5px;
width: 90px;
height: 35px;
color: white;
text-align: center;
line-height: 35px;
margin-right: 10px;
}
.breadcrumb {
font-size: 16px;
color: gray;
}
.table {
width: 100%;
text-align: left;
border-radius: 2px 2px 0 0;
border-collapse: separate;
border-spacing: 0;
}
.th {
color: rgba(0, 0, 0, 0.85);
font-weight: 500;
text-align: left;
background: #fafafa;
border-bottom: 1px solid #f0f0f0;
transition: background 0.3s ease;
}
.th.num-th {
flex: 1.5;
}
.th {
text-align: center;
}
.th:nth-child(4),
.th:nth-child(5),
.th:nth-child(6),
.th:nth-child(7) {
text-align: center;
}
.th.th-pic {
flex: 1.3;
}
.th:nth-child(6) {
flex: 1.3;
}
.th,
.td {
position: relative;
padding: 16px 16px;
overflow-wrap: break-word;
flex: 1;
}
.pick-td {
font-size: 14px;
}
.main,
.empty {
border: 1px solid #f0f0f0;
margin-top: 10px;
}
.tr {
display: flex;
cursor: pointer;
border-bottom: 1px solid #ebeef5;
}
.tr.active {
background-color: #f5f7fa;
}
.td {
display: flex;
justify-content: center;
align-items: center;
}
.table img {
width: 100px;
height: 100px;
}
button {
outline: 0;
box-shadow: none;
color: #fff;
background: #d9363e;
border-color: #d9363e;
color: #fff;
background: #d9363e;
border-color: #d9363e;
line-height: 1.5715;
position: relative;
display: inline-block;
font-weight: 400;
white-space: nowrap;
text-align: center;
background-image: none;
border: 1px solid transparent;
box-shadow: 0 2px 0 rgb(0 0 0 / 2%);
cursor: pointer;
transition: all 0.3s cubic-bezier(0.645, 0.045, 0.355, 1);
-webkit-user-select: none;
-moz-user-select: none;
-ms-user-select: none;
user-select: none;
touch-action: manipulation;
height: 32px;
padding: 4px 15px;
font-size: 14px;
border-radius: 2px;
}
button.pay {
background-color: #3f85ed;
margin-left: 20px;
}
.bottom {
height: 60px;
display: flex;
align-items: center;
justify-content: space-between;
padding-right: 20px;
border: 1px solid #f0f0f0;
border-top: none;
padding-left: 20px;
}
.right-box {
display: flex;
align-items: center;
}
.check-all {
cursor: pointer;
}
.price {
color: hotpink;
font-size: 30px;
font-weight: 700;
}
.price-box {
display: flex;
align-items: center;
}
.empty {
padding: 20px;
text-align: center;
font-size: 30px;
color: #909399;
}
.my-input-number {
display: flex;
}
.my-input-number button {
height: 40px;
color: #333;
border: 1px solid #dcdfe6;
background-color: #f5f7fa;
}
.my-input-number button:disabled {
cursor: not-allowed!important;
}
.my-input-number .my-input__inner {
height: 40px;
width: 50px;
padding: 0;
border: none;
border-top: 1px solid #dcdfe6;
border-bottom: 1px solid #dcdfe6;
}inputnumber
.my-input-number {
position: relative;
display: inline-block;
width: 140px;
line-height: 38px;
}
.my-input-number span {
-moz-user-select: none;
-webkit-user-select: none;
-ms-user-select: none;
}
.my-input-number .my-input {
display: block;
position: relative;
font-size: 14px;
width: 100%;
}
.my-input-number .my-input__inner {
-webkit-appearance: none;
background-color: #fff;
background-image: none;
border-radius: 4px;
border: 1px solid #dcdfe6;
box-sizing: border-box;
color: #606266;
display: inline-block;
font-size: inherit;
height: 40px;
line-height: 40px;
outline: none;
padding: 0 15px;
transition: border-color 0.2s cubic-bezier(0.645, 0.045, 0.355, 1);
width: 100%;
padding-left: 50px;
padding-right: 50px;
text-align: center;
}
.my-input-number .my-input-number__decrease,
.my-input-number .my-input-number__increase {
position: absolute;
z-index: 1;
top: 1px;
width: 40px;
height: auto;
text-align: center;
background: #f5f7fa;
color: #606266;
cursor: pointer;
font-size: 13px;
}
.my-input-number .my-input-number__decrease {
left: 1px;
border-radius: 4px 0 0 4px;
border-right: 1px solid #dcdfe6;
}
.my-input-number .my-input-number__increase {
right: 1px;
border-radius: 0 4px 4px 0;
border-left: 1px solid #dcdfe6;
}
.my-input-number .my-input-number__decrease.is-disabled,
.my-input-number .my-input-number__increase.is-disabled {
color: #c0c4cc;
cursor: not-allowed;
}
图片
效果图：
