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vue中怎么實現一個購物車插件,相信很多沒有經驗的人對此束手無策,為此本文總結了問題出現的原因和解決方法,通過這篇文章希望你能解決這個問題。
相關代碼:
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>Hello MUI</title> <meta name="viewport" content="width=device-width, initial-scale=1,maximum-scale=1,user-scalable=no"> <meta name="apple-mobile-web-app-capable" content="yes"> <meta name="apple-mobile-web-app-status-bar-style" content="black"> <link rel="stylesheet" href="../../css/mui.min.css"> <link rel="stylesheet" href="../../css/app.css"> <style> .mui-content>.mui-table-view:first-child{ margin-top: 0.133333rem; } .mui-bar-nav~.mui-content{ padding-top: 1.173333rem; } .mui-content{ padding-bottom: 1.173333rem; } input[type=checkbox] { width: 0.426666rem; height: 0.426666rem; border: 0; outline: 0!important; background-color: transparent; -webkit-appearance: none; } input[type=checkbox]:before { content: '\e411'; } input[type=checkbox]:checked:before { content: '\e441'; } input[type=checkbox]:before { font-family: Muiicons; font-size: 0.426666rem; font-weight: 400; line-height: 1; text-decoration: none; color: #81d8d0; border-radius: 0; background: 0 0; -webkit-font-smoothing: antialiased; } input[type=checkbox]:checked:before { color: #81d8d0; } .allinput[type=checkbox] { width: 0.426666rem; height: 0.426666rem; border: 0; outline: 0!important; background-color: transparent; -webkit-appearance: none; } .allinput[type=checkbox]:before { content: '\e411'; } .allinput[type=checkbox]:checked:before { content: '\e441'; } .allinput[type=checkbox]:before { font-family: Muiicons; font-size: 0.426666rem; font-weight: 400; line-height: 1; text-decoration: none; color: #fff; border-radius: 0; background: 0 0; -webkit-font-smoothing: antialiased; } .allinput[type=checkbox]:checked:before { color: #fff; } .popover_detail_numbtn .mui-numbox{ float: right; border-radius: 0; padding: 0 0.56rem; height: 0.586666rem; width:2rem; } .mui-numbox [class*=btn-numbox], .mui-numbox [class*=numbox-btn] { font-size: 0.4rem; line-height: 0.56rem; width: 0.56rem; height: 0.56rem; color: #707070; background-color: #fff; } .shop_input_num[type=number]{ font-size: 0.266666rem; line-height: 0.56rem; top: 0; } </style> </head> <body id="app" v-cloak> <header class="mui-bar mui-bar-nav"> <a class="mui-action-back mui-pull-left mui_return_back"></a> <h2 class="mui-title">購物車</h2> </header> <div class="mui-content"> <div class="mui_shopcar_list_box" v-for="data in items"> <div class="mui_order_item_title"> <div class="mui_adress_radio"> <input type="checkbox" v-model="data.shopselected" v-on:click="checkShop($index)"> </div> <a href="javascript:;" class="look_shop" v-on:click="LookShop(data.id)"> {{data.shopname}} <img class="order_link" src="../../images/icon/order_link.png"/> </a> </div> <ul class="mui-table-view mui-table-view-chevron mui_shopcar_list"> <li class="mui_shopcar_item" v-for="item in data.listgoods"> <div class="mui_adress_radio"> <input type="checkbox" v-model="item.selected" v-on:click="checkGoods($parent.$index,$index)"> </div> <div class="mui_shopcar_img" v-on:click="LookGoods(item.id)"> <img src="../../images/423.jpg"/> </div> <div class="mui_shopcar_media"> <div class="mui_shopcar_title"> <p class="mui_shopcar_name">{{ item.name }}</p> <span class="mui_shopcar_del" v-on:click="remove($parent.$index,$index)"> <a><img src="../../images/icon/19.png" alt="" /></a> </span> </div> <p class="mui_shopcar_unit">單位:升</p> <div class="mui_shopcar_pro"> <p class="mui_shopcar_price">{{item.price|currency '¥' 2}}</p> <div class="popover_detail_numbtn"> <div class="mui-numbox" data-numbox-min='1' data-numbox-max='9'> <button class="mui-btn mui-btn-numbox-minus" type="button" v-on:click.native="reduce($parent.$index,$index)">-</button> <input class="mui-input-numbox shop_input_num" type="number" disabled value="{{item.count}}"/> <button class="mui-btn mui-btn-numbox-plus" type="button" v-on:click.native="add($parent.$index,$index)">+</button> </div> </div> </div> </div> </li> <!--<li class="mui_shopcar_item"> <div class="mui_adress_radio"> <input name="address" type="checkbox"> </div> <div class="mui_shopcar_img"> <img src="../../images/423.jpg"/> </div> <div class="mui_shopcar_media"> <div class="mui_shopcar_title"> <p class="mui_shopcar_name">內蒙古原產牛奶</p> <span class="mui_shopcar_del"> <img src="../../images/icon/19.png" alt="" /> </span> </div> <p class="mui_shopcar_unit">單位:升</p> <div class="mui_shopcar_pro"> <p class="mui_shopcar_price">¥ 50.00</p> <div class="popover_detail_numbtn"> <div class="mui-numbox" data-numbox-min='1' data-numbox-max='9'> <button class="mui-btn mui-btn-numbox-minus" type="button">-</button> <input id="test" class="mui-input-numbox" type="number" value="5" /> <button class="mui-btn mui-btn-numbox-plus" type="button">+</button> </div> </div> </div> </div> </li>--> </ul> </div> </div> <div class="mui_shopcar_bar"> <div class="mui_adress_radio"> <input type="checkbox" class="allinput" v-model="selectAll"> 全選 </div> <div class="mui_shopcar_sumbtn"> <p class="mui_shopcar_sum">合計:{{ total|currency '¥' 2}}</p> <button id="order_true" type="button" v-on:click.native="Submit()">結算</button> </div> </div> <script type="text/javascript" src="../../js/app.js" ></script> <script src="../../js/mui.min.js"></script> <script src="../../js/vue.min.js"></script> <script src="../../js/jquery-1.8.3.min.js" ></script> <script> mui.init();//初始化 mui.plusReady(function(){}) var vm = new Vue({ el: "#app", data: { OrderTotal:0,//用來保存商品總價 items: [//加入購物車商品 { id:1, shopname:'內蒙古原產牛奶', shopselected:false, listgoods:[ { id:101, name: '奶片', price:1.3, count:2, selected:false }, { id:102, name: '小辣椒', price:100, count:1, selected:false }, { id:103, name: '小辣椒22222', price:100, count:1, selected:false } ] }, { id:2, shopname:'云端電子', shopselected:false, listgoods:[ { id:201, name: '三星', price:4000, count:2, selected:false }, { id:202, name: '華為1', price:100, count:1, selected:false }, { id:203, name: '華為2', price:100, count:1, selected:false }, { id:204, name: '華為3', price:100, count:1, selected:false } ] }, { id:3, shopname:'小米官方商店', shopselected:false, listgoods:[ { id:301, name: '小米4', price:1.3, count:2, selected:false } ] } ] }, //computed相當于屬性的一個實時計算,如果實時計算里關聯了對象,那么當對象的某個值改變的時候,同事會出發實時計算。 computed: { selectAll:{ //動態判斷全選按鈕是否選中(根據 選中的商店數量==items數組長度) get:function(){ return this.items.filter(function(item){ return item.shopselected == true; }).length == this.items.length; }, //設置全選 set:function(val){ this.items.forEach(function(item){//遍歷所有商店 item.shopselected = val;//所有商店選中 item.listgoods.forEach(function(list){//遍歷所有商品 list.selected = val;//所有商品選中 }) }); } }, num:function(){ var num = 0; this.items.forEach(function(item){//遍歷商家數組 item.listgoods.filter(function(a){//遍歷商品數組 return a.selected//選擇選中的商品 }).map(function(a){ return a.count//計算商品數量*商品單價 }).forEach(function(a){ num += a; }); }) return num;//返回總價 }, //計算總價 total:function(){ var total = 0; this.items.forEach(function(item){//遍歷商家數組 item.listgoods.filter(function(a){//遍歷商品數組 return a.selected//選擇選中的商品 }).map(function(a){ return a.count*a.price//計算商品數量*商品單價 }).forEach(function(a){ total += a; }); }) this.OrderTotal = total;//更新商品總價 return total;//返回總價 } }, methods:{ //點擊商店選中所有商品 checkShop:function(pID){ var self = this.items[pID]; if(self.shopselected != true){ self.listgoods.forEach(function(list){ list.selected = true; }) }else{ self.listgoods.forEach(function(list){ list.selected = false; }) } }, //選擇某商品 判斷商店是否全選 checkGoods:function(pID,id){ var self = this.items[pID];//點擊單選框的父節點 if(self.listgoods[id].selected){//判斷當選框是否備選中 self.listgoods.filter(function(item){ return item.selected == true; }).length-1 == self.listgoods.length ? self.shopselected = true : self.shopselected = false; }else{ self.listgoods.filter(function(item){ return item.selected == true; }).length+1 == self.listgoods.length ? self.shopselected = true : self.shopselected = false; } }, //增加商品數量 最多購買100件 add:function (parentID,ID) {//parentID是商家id,ID是商品id var self = this.items[parentID].listgoods[ID]; if(self.count >100){ return false; } self.count++; }, //減少商品數量 最少買一件 reduce:function(parentID,ID){//parentID是商家id,ID是商品id var self = this.items[parentID].listgoods[ID]; if(self.count <= 1){ return false } self.count--; }, //移除商品函數 remove:function(parentID,ID){//parentID是商家id,ID是商品id var self = this.items[parentID]; self.listgoods.length == 1 ? this.items.splice(parentID, 1) : self.listgoods.splice(ID, 1);//如果刪除最后一個商品,則商家一并刪除 }, //結算函數 Submit:function(){ //獲取選中的商家及相應的商品 var TotalPrice = this.OrderTotal;//存放要支付的總價 var OrderArry = [];//存放選中的商品數組 this.items.forEach(function(item){//遍歷商家數組 if(item.shopselected){//如果商家備選中則其下商品均被選中,直接添加數組 return OrderArry.push(item) }else{//如果商家沒有選中,繼續遍歷旗下商品是否備選中 var arry = {//設置臨時數組,來保存沒有選中商店的數據 'id' : item.id,//商店id 'shopname' : item.shopname,//商店名字 'shopselected' : item.shopselected,//商店是否備選中 'listgoods' : []//商店旗下的商品數組 }; item.listgoods.filter(function(list){//遍歷商店旗下的商品數組 return list.selected//過濾所有選中的商品 }).map(function(a){ return arry.listgoods.push(a)//將選中的商品添加到數組中 }); if(arry.listgoods.length > 0){//如果有商品選中在添加到數組 OrderArry.push(arry) } } }); console.log(OrderArry)//打印選中的商品數組 console.log(TotalPrice)//打印總價 //結算跳轉頁面 //打開確認訂單 mui.openWindow({ url: 'order_true.html', id:'order_true.html', extras:{//自定義擴展參數,可以用來處理頁面間傳值 'BuyMethod' : 'ShoppingCartSettlement',//結算方式 'ItemList' : OrderArry,//選擇的商品數組 'TotalPrice' : TotalPrice//要支付的總價 }, waiting:{ autoShow:true,//自動顯示等待框,默認為true title:'正在加載...'//等待對話框上顯示的提示內容 } }); }, //查看商家 LookShop:function(id){ mui.openWindow({ url: '../SellerHome/seller_index.html', id:'../SellerHome/seller_index.html', extras:{ //自定義擴展參數,可以用來處理頁面間傳值 }, waiting:{ autoShow:true,//自動顯示等待框,默認為true //title:'正在加載...'//等待對話框上顯示的提示內容 } }); }, //查看商品 LookGoods:function(id){ mui.openWindow({ url: '../Selected/selected_list_details.html', id:'../Selected/selected_list_details.html', extras:{ //自定義擴展參數,可以用來處理頁面間傳值 }, waiting:{ autoShow:false,//自動顯示等待框,默認為true //title:'正在加載...'//等待對話框上顯示的提示內容 } }); }, } }); </script> </body> </html>
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