vue實現購物車案例
阿新 • • 發佈：2020-06-01
本文例項為大家分享了vue實現購物車的具體程式碼，供大家參考，具體內容如下
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width,initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>購物車案例</title>
<script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>
</head>
<style>
*{
padding: 0;
margin:0
}
ul li{
width: 1200px;
display: flex;
align-items: center;
justify-content: center;
}
li div,.total{
display: inline-block;
width:200px;
height: 50px;
line-height: 50px;
text-align: center;
}
button{
width: 60px;
height: 40px;
text-align: center;
line-height: 40px;
}
</style>
<body>
<div id="app">
<ul>
<goodsitem
v-for="item in goodslist"
:item="item"
:key="item.id"
@onchange="(type)=>{handleCount(type,item)}"
@ondelete="()=>{handleDelete(item.id)}">
</goodsitem>
<div class="total" style="padding-left: 113px">總價:{{total}}</div>
</ul>
</div>
</body>
<script>
var computed={
props:{
count:{
type:Number,require:true
}
},methods:{
handleCount(type){
this.$emit('onchange',type)
}
},template:`<div style="width:200px">
<button @click="handleCount('sub')">-</button>
<span>{{count}}</span>
<button @click="handleCount('add')" >+</button>
</div>
`
}
var goodsitem={
props:{
item:{
type:Object,type)
},handleDelete(){
this.$emit('ondelete')
}
},components:{
computed
},template:`<li>
<div>{{item.goodsName}}</div>
<div>{{item.price}}</div>
<computed :count="item.count" @onchange="handleCount"></computed>
<div>{{item.sum}}</div>
<div><button @click="handleDelete">刪除</button></div>
</li>
`
}
var app=new Vue({
el:"#app",data:{
goodslist:[{
id:1,goodsName:"小可愛",price:100,count:1,sum:100
},{
id:2,price:200,count:2,sum:400
},{
id:3,price:300,count:3,sum:900
},{
id:4,price:400,]
},methods:{
handleCount(type,item){
if(type=='add'){
item.count+=1
}else{
if(item.count==1){
this.handleDelete(item.id)
return
}
item.count-=1
}
item.sum=item.count*item.price
},handleDelete(id){
return this.goodslist=this.goodslist.filter((item)=>{
return id!=item.id
})
}
},computed:{
total(){
return this.goodslist.reduce((total,item)=>{
return total+=item.sum
},0)
}
},components:{
goodsitem
}
})
</script>
</html>實現效果圖：
以上就是本文的全部內容，希望對大家的學習有所幫助，也希望大家多多支援我們。