素材链接：点击领取素材
提取码：1024
需求说明：
1.渲染功能
2.删除功能
3.修改个数
4.全选反选
5.统计 选中的 总价和总数量
<!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">
<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">
<!-- 使用v-for渲染页面 如果是勾选就给div上背景颜色 -->
<div v-for="(item,index) in fruitList" :key="item.id" class="tr" :class="{active:item.isChecked}">
<!-- 使用双向绑定 获取勾选状态 -->
<div class="td"><input type="checkbox" v-model="item.isChecked" /></div>
<!-- 图片也需动态渲染 -->
<div class="td"><img :src="item.icon" alt="" /></div>
<div class="td">6</div>
<div class="td">
<div class="my-input-number">
<!-- 如果数量小于等于1时 disabled -->
<button :disabled="item.num<=1" class="decrease" @click="sub(item.id)"> - </button>
<span class="my-input__inner">{{item.num}}</span>
<button class="increase" @click="add(item.id)"> + </button>
</div>
</div>
<!-- 小计等于数量乘于单价 -->
<div class="td">{{item.num * item.price}}</div>
<!-- 给button绑定点击事件 传id值 -->
<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">{{totalPrice}}</span></span>
<!-- 结算按钮 -->
<button class="pay">结算( {{totalCount}} )</button>
</div>
</div>
</div>
<!-- 空车 -->
<div class="empty">🛒空空如也</div>
</div>
<script src="./js/vue.js"></script>
<!-- <script src="./js/axios.js"></script> -->
<script>
Vue.config.productionTip = false;
const app = new Vue({
el: '#app',
data: {
// 水果列表
fruitList: [
{
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,
},
],
},
computed: {
isAll: {
get() {
return this.fruitList.every(item => item.isChecked)
},
// 修改时触发
set(newValue) {
this.fruitList.forEach(item => item.isChecked = newValue)
}
},
// 统计选中的总数
totalCount() {
return this.fruitList.reduce((sum, item) => {
if (item.isChecked) {
return sum + item.num
} else {
return sum
}
}, 0)
},
// 统计选中的总价 num * price
totalPrice() {
return this.fruitList.reduce((sum, item) => {
if (item.isChecked) {
return sum + item.num * item.price
} else {
return sum
}
}, 0)
}
},
methods: {
// 接收到id
del(id) {
this.fruitList = this.fruitList.filter(item => item.id !== id)
},
add(id) {
// 根据 id 找到数组中的对应项 find
const fruit = this.fruitList.find(item => item.id == id)
fruit.num++
},
sub(id) {
// 根据 id 找到数组中的对应项 find
const fruit = this.fruitList.find(item => item.id == id)
fruit.num--
}
},
})
</script>
</body>
</html>
感谢大家的阅读，如有不对的地方，可以向我提出，感谢大家！