基于vue.js实现购物车

<template>
<div class="all">
<div class="head">
<span>购物车</span>
</div>
<ul class="menu">
<li class="li">
<input type="checkbox" id="all" v-model="checkedAll" @change="checkedAllChange()">
<label for="all"></label>
全选
</li>
<li class="li">商品代码</li>
<li class="li">商品名称</li>
<li class="li">商品单价</li>
<li class="li">商品数量</li>
<li class="li">商品库存</li>
<li class="li">商品小计</li>
</ul>
<div>
<ul v-for="data in data" :key="data.code" class="menu">
<li class="li">
<input type="checkbox" name="commodity" v-model="checked" :value="data" @change="changeAll()" >
</li>
<li class="li">{{data.code}}</li>
<li class="li">{{data.name}}</li>
<li class="li">￥{{data.price}}</li>
<li class="li">
<div @click="SubNum(data)">-</div>
<input type="number" v-model.lazy="data.number" @change="numberChange(data)" >
<div @click="AddNum(data)">+</div>
</li>
<li class="li">{{data.stock}}</li>
<li class="li">￥{{data.number*data.price}}</li>
</ul>
</div>
<div class="info">
<p>{{commodityNumber}}件商品</p>
<p>总计：<span>￥{{numberAll}}</span></p>
</div>
</div>
</template>

<script>
export default {
data() {
return {
checkedAll: false,
checked: [],
totalPrice: 0,
data: {
one: {
code: 10001,
name: "商品一",
price: 26,
number: 1,
stock: 6
},
two: {
code: 10002,
name: "商品二",
price: 34,
number: 1,
stock: 14
},
three: {
code: 10003,
name: "商品三",
price: 48,
number: 1,
stock: 2
},
four: {
code: 10004,
name: "商品四",
price: 63,
number: 1,
stock: 12
},
five: {
code: 10005,
name: "商品五",
price: 50,
number: 1,
stock: 92
}
}
};
},
mounted() {},
methods: {
//判断全选事件
checkedAllChange() {
if (this.checkedAll) {
for (let i in this.data) {
this.checked.push(this.data[i]);
}
} else {
this.checked = [];
}
},
changeAll() {
if (this.checked.length == Object.keys(this.data).length) {
this.checkedAll = true;
} else {
this.checkedAll = false;
}
},
// 加减
SubNum(data) {
data.number--;
if (data.number < 1) {
data.number = 1;
}
},
AddNum(data) {
data.number++;
if (data.number > data.stock) {
data.number = data.stock;
}
},
//输入
numberChange(data) {
if (data.number > data.stock) {
data.number = data.stock;
}
}
},
computed: {
//商品数量
commodityNumber() {
return this.checked.length;
},
//总价
numberAll() {
var numberAll = 0;
for (let i in this.checked) {
numberAll += this.checked[i].number * this.checked[i].price;
}
return numberAll;
}
}
};
</script>

<style lang="scss" scoped type="text/css">
ul,
li {
list-style: none;
}
.all {
width: 800px;
height: 500px;
background: #fff;
border: 1px solid #177ecb;
margin-left: 300px;
.head {
background: #177ecb;
height: 36px;
line-height: 36px;
color: #fff;
padding-left: 15px;
}
.menu {
height: 32px;
width: 100%;
border-bottom: 1px solid #d4d4d4;
padding: 0 15px;
display: flex;
.li {
line-height: 32px;
flex: 1;
border-right: 1px solid #d4d4d4;
text-align: center;
input[type="number"] {
width: 40px;
display: inline-block;
height: 20px;
}
div {
width: 20px;
height: 20px;
padding: 0;
display: inline-block;
background: #333;
color: #fff;
line-height: 20px;
text-align: center;
cursor: pointer;
}
div:active {
background: #999;
}
}
.li:nth-of-type(3) {
flex: 2;
}
.li:last-child {
border: 0;
}
}
.menu + div {
height: 350px;
margin-bottom: 20px;
border-bottom: 1px solid #177ecb;
}
.info {
text-align: right;
margin-right: 20px;
span {
color: #f00;
font-size: 20px;
font-weight: 900;
}
}
}
</style>