本文实例为大家分享了vue实现购物车功能的具体代码，供大家参考，具体内容如下
new Vue({
el: "#app",
data: {
cIndex: 0,
lists: [
{
title: "推荐商品",
goods: [
{
id: 0,
img: './images/goods.png',
name: '散称樱桃1',
price: '10.00',
num: 0
},
{
id: 1,
img: './images/goods.png',
name: '散称樱桃1',
price: '10.00',
num: 0
} ] },
{
title: "推荐商品",
goods: [
{
id: 2,
img: './images/goods.png',
name: '散称樱桃2',
price: '20.00',
num: 0
},
{
id: 3,
img: './images/goods.png',
name: '散称樱桃2',
price: '20.00',
num: 0
},
] },
],
carArr: [],
appearCar: false,
},
computed:{
alltotal:function () {
var alltotal = 0;
var allNum = 0;
for(var i = 0,len = this.lists.length;i<len;i++){
for(var j = 0,goodsLen = this.lists[i].goods.length;j<goodsLen;j++){
alltotal += parseInt(this.lists[i].goods[j].num)*parseFloat(this.lists[i].goods[j].price);
allNum += parseInt(this.lists[i].goods[j].num);
}
}
return [alltotal,allNum] },
},
methods: {
leftTap: function (index) {
this.cIndex = index
},
showCar: function () {
if (this.carArr.length == 0) {
this.appearCar = false
} else {
this.appearCar = !this.appearCar
}
},
//商品数量加
addNum: function (data) {
data.num++;
var carArr = this.carArr;
var isCar = false;
if (carArr == 0) {
carArr.push(data)
}
for (var i = 0, len = carArr.length; i < len; i++) {
if (data.id == carArr[i].id) {
isCar = true
}
}
if (!isCar) {
carArr.push(data)
}
},
reduceNum: function (data) {
if (data.num <= 0) return;
var carArr = this.carArr;
data.num--;
var isCar = false;
for (var i = 0, len = carArr.length; i < len; i++) {
if (carArr[i].num <= 0) {
carArr.splice(i, 1)
}
}
},
carAddNum: function (index) {
this.carArr[index].num++
},
carReduceNum: function (index) {
this.carArr[index].num--;
if (this.carArr[index].num <= 0) {
this.carArr.splice(index, 1)
}
if (this.carArr.length == 0) {
this.appearCar = !this.appearCar
}
},
// 清空
delCar: function () {
confirm('确定清空购物车吗?');
var cur = this.cIndex;
var goods = this.lists[cur].goods
if (true) {
this.carArr = [];
this.appearCar = !this.appearCar;
for(var i = 0,len = this.lists.length;i<len;i++){
for(var j = 0,goodsLen = this.lists[i].goods.length;j<goodsLen;j++){
