<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style type="text/css">
.container {
}
.container .cart {
width: 300px;
/*background-color: lightgreen;*/
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: right;
}
.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;
}
.notClick{pointer-events: none;}
</style>
</head>
<body>
<div id="app">
<div class="container">
<cart-box></cart-box>
<div class="cart"></div>
</div>
</div>
<script type="text/javascript" src="js/vue.js"></script>
<script type="text/javascript">
// 子组件 title
var CartTitle={
props:['uname'],
template:`<div class="title">{{uname}}的商品</div>`,
};
// 子组件 total 结算区域
var CartTotal={
props:['list'],
template:`
<div class="total">
<span>总价：{{total}}</span>
<button>结算</button>
</div>`,
computed:{
// 价格
total(){
var totalPrice=0;
// 遍历对象
this.list.forEach(item =>{
totalPrice+=item.price*item.num;
})
return totalPrice;
}
}
};
// 子组件 list 功能区域
var CartContent={
props:['list'],
data:function(){
return {
};
},
template:`
<div>
<div class="item" v-for="(item) in list" :key="item.id">
<img :src="item.img"/>
<div class="name">{{item.name}}</div>
<div class="change">
<a href="" @click.prevent='cut(item.id)'>－</a>
<input type="text" class="num" :value='item.num' @blur="changeNum(item.id,$event)"/>
<a href="" @click.prevent='add(item.id)'>＋</a>
</div>
<div class="del" @click='del(item.id)'>×</div>
</div>
</div>
`,
methods:{
del(id){
// 把id 抛出去 给父级
this.$emit('deleteFn',id);
},
changeNum(id,event){
// 把值抛出去 changeNumFn 在父级组件接收的形式 @changeNumFn='changeNum($event)'
this.$emit('changeNumFn',{
id:id,
type:'change',
num:event.target.value
})
},
cut(id){//减数量
this.list.some(item=>{
if(item.id==id){
if(item.num>0){
this.$emit('changeNumFn',{
id:id,
type:'cut',
})
}
}
})
},
add(id){//加数量
this.$emit('changeNumFn',{
id:id,
type:'add',
})
}
}
};
// 生成组件 总组件
Vue.component('cart-box',{
data:function(){
return {
uname: '小王',
list: [{
id: 1,
name: 'TCL彩电',
price: 1000,
num: 1,
img: 'img/a.jpg'
},{
id: 2,
name: '机顶盒',
price: 1000,
num: 1,
img: 'img/b.jpg'
},{
id: 3,
name: '海尔冰箱',
price: 1000,
num: 1,
img: 'img/c.jpg'
},{
id: 4,
name: '小米手机',
price: 1000,
num: 1,
img: 'img/d.jpg'
},{
id: 5,
name: 'PPTV电视',
price: 1000,
num: 2,
img: 'img/e.jpg'
}]
};
},
methods:{
delCart(id){
// 根据传来的id 删除list种对应的数据
// 找到id所对应的数据的索引
var index=this.list.findIndex(item=>{
return item.id==id;
});
// 根据索引删除对应数据
this.list.splice(index,1);
},
changeNum(val){
console.log(val.type)
if(val.type=='change'){//直接修改数量
this.list.some(item=>{
if(item.id==val.id){
item.num=val.num;
return true;
}
})
}else if(val.type=='cut'){//减数量
this.list.some(item=>{
if(item.id==val.id){
item.num--;
return true;
}
})
}else if(val.type=='add'){//加数量
this.list.some(item=>{
if(item.id==val.id){
item.num++;
return true;
}
})
}
}
},
//子组件传数据到父组件 @传过来的名字='子组件定义的事件名($event)'
template:`<div class='cart'>
<cart-title :uname="uname"></cart-title>
<cart-content :list='list' @deleteFn='delCart($event)' @changeNumFn='changeNum($event)'></cart-content>
<cart-total :list='list'></cart-total>
</div>`,
components:{
"cart-title":CartTitle,
"cart-content":CartContent,
"cart-total":CartTotal
},
});
var vm = new Vue({
el: '#app',
data: {
},
});
</script>
</body>
</html>
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