1. 父组件
<template>
<div id="app">
<div class="container">
<div class="cart">
<Header></Header>
<!-- $event 接受子组件传过来的参数 -->
<List :list="list" @del="del($event)" @changeNum="changeNum($event)"></List>
<Footer :list="list"></Footer>
</div>
</div>
</div>
</template>
<script>
import Header from "./components/Header";
import List from "./components/List";
import Footer from "./components/Footer";
export default {
components:{
Header, List, Footer
},
data(){
return{
list: [
{
id: 1,
name: 'TCL彩电',
price: 1000,
num: 1,
img: require('./img/a.jpg')
},
{
id: 2,
name: '机顶盒',
price: 1000,
num: 1,
img: require('./img/b.jpg')
},
{
id: 3,
name: '海尔冰箱',
price: 1000,
num: 1,
img: require('./img/c.jpg')
},
{
id: 4,
name: '小米手机',
price: 1000,
num: 1,
img: require('./img/d.jpg')
},
{
id: 5,
name: 'PPTV电视',
price: 1000,
num: 2,
img: require('./img/e.jpg')
}
]
}
},
methods:{
// 删除逻辑
del(id){
const index = this.list.findIndex(item=>{
return item.id === id;
});
this.list.splice(index, 1)
},
// 修改商品数量(直接修改，加，减)
changeNum(value){
// 获取子组件参数
const {
id,val, type} = value;
// 对应商品索引
const index = this.list.findIndex(item=>{
return item.id===id
});
// 判断类型
if(type==='change'){
this.list[index].num = val
}else{
this.list[index].num += val
}
}
}
}
</script>
<style type="text/css">
.container {
}
.container .cart {
width: 300px;
margin: auto;
}
.container .title {
background-color: lightblue;
height: 40px;
line-height: 40px;
text-align: center;
/*color: #fff;*/
}
.container .total {
background-color: #FFCE46;
height: 50px;
line-height: 50px;
text-align: center;
}
.container .total button {
margin: 0 10px;
background-color: #DC4C40;
height: 35px;
width: 80px;
border: 0;
}
.container .total span {
color: red;
font-weight: bold;
}
.container .item {
height: 55px;
line-height: 55px;
position: relative;
border-top: 1px solid #ADD8E6;
}
.container .item img {
width: 45px;
height: 45px;
margin: 5px;
}
.container .item .name {
position: absolute;
width: 90px;
top: 0;
left: 55px;
font-size: 16px;
}
.container .item .change {
width: 100px;
position: absolute;
top: 0;
right: 50px;
}
.container .item .change a {
font-size: 20px;
width: 30px;
text-decoration: none;
background-color: lightgray;
vertical-align: middle;
}
.container .item .change .num {
width: 40px;
height: 25px;
}
.container .item .del {
position: absolute;
top: 0;
right: 0px;
width: 40px;
text-align: center;
font-size: 40px;
cursor: pointer;
color: red;
}
.container .item .del:hover {
background-color: orange;
}
</style>
2. 子组件
头部
<template>
<div class="title">我的商品</div>
</template>
<script>
export default {
name: "Header"
}
</script>
<style scoped>
</style>
列表部分
<template>
<div>
<div class="item" v-for="item in list">
<img :src="item.img">
<div class="name"> {
{
item.name }} </div>
<div class="change"><a href="" @click.prevent="sub(item.id)">－</a>
<input type="text" class="num" :value="item.num" @blur="changeNum(item.id, $event)">
<a href="" @click.prevent="add(item.id)">＋</a></div>
<div class="del" @click="del(item.id)">×</div>
</div>
</div>
</template>
<script>
export default {
name: "List",
props:['list'],
methods:{
del(id){
this.$emit('del', id)
},
changeNum(id, event){
this.$emit('changeNum', {
id:id, val:event.target.value, type:'change'})
},
add(id){
this.$emit('changeNum', {
id:id, type:'add', val:1})
},
sub(id){
this.$emit('changeNum', {
id:id, type:'sub', val:-1})
}
}
}
</script>
<style scoped>
</style>
尾部
<template>
<div class="total"><span>总价：{
{
sum }}</span>
</div>
</template>
<script>
export default {
name: "Footer",
props:['list'],
computed:{
sum(){
let sumPrice = 0;
this.list.forEach((item)=>{
sumPrice += item.price * item.num
});
return sumPrice
}
}
}
</script>
<style scoped>
</style>
