微信小程序如何查询购物记录，微信小程序微商城
微信小程序如何查询购物记录，微信小程序微商城绑定bindtap事件将商品加入购物车。<button data-goodid="{{goods.goodsId}}" class="button-addCar" bindtap="addCar" formType="submit">确定</button>2、购物车页面读取缓存获取商品信息3、购物车商品计算和删除缓存商品detail.wxml
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开发计划
1、商品详情页将商品信息放入缓存
2、购物车页面读取缓存获取商品信息
3、购物车商品计算和删除缓存商品
一、商品详情页将商品信息放入缓存detail.wxml
<button data-goodid="{{goods.goodsId}}" class="button-addCar" bindtap="addCar" formType="submit">确定</button>
绑定bindtap事件将商品加入购物车。
detail.js
/**
* 加入购物车
*/
addCar: function (e) {
var goods = this.data.goods;
goods.isSelect=false;
var count = this.data.goods.count;
var title = this.data.goods.title;
if (title.length > 13) {
goods.title = title.substring(0 13) '...';
}
// 获取购物车的缓存数组（没有数据，则赋予一个空数组）
var arr = wx.getStorageSync('cart') || [];
console.log("arr {}" arr);
if (arr.length > 0) {
// 遍历购物车数组
for (var j in arr) {
// 判断购物车内的item的id，和事件传递过来的id，是否相等
if (arr[j].goodsId == goodsId) {
// 相等的话，给count 1（即再次添加入购物车，数量 1）
arr[j].count = arr[j].count 1;
// 最后，把购物车数据，存放入缓存（此处不用再给购物车数组push元素进去，因为这个是购物车有的，直接更新当前数组即可）
try {
wx.setStorageSync('cart' arr)
} catch (e) {
console.log(e)
}
//关闭窗口
wx.showToast({
title: '加入购物车成功！'
icon: 'success'
duration: 2000
});
this.closeDialog();
// 返回（在if内使用return，跳出循环节约运算，节约性能）
return;
}
}
// 遍历完购物车后，没有对应的item项，把goodslist的当前项放入购物车数组
arr.push(goods);
} else {
arr.push(goods);
}
// 最后，把购物车数据，存放入缓存
try {
wx.setStorageSync('cart' arr)
// 返回（在if内使用return，跳出循环节约运算，节约性能）
//关闭窗口
wx.showToast({
title: '加入购物车成功！'
icon: 'success'
duration: 2000
});
this.closeDialog();
return;
} catch (e) {
console.log(e)
}
}
二、购物车页面读取缓存获取商品信息cart.wxml
<view class="J-shopping-cart-empty" hidden="{{iscart}}"><view class="shopping-cart-empty">
<view class="bg"></view>
<view class="cart"></view>
<text class='empty-text'>购物车空空如也</text>
<p></p>
<navigator url="/pages/goods/goods">
<a href="//m.vip.com" class="button button-primary" >
去抢购 </a>
</navigator>
</view></view> <view class="scroll" hidden="{{hidden}}"><scroll-view class="scroll" scroll-y="true">
<view class="separate"></view>
<view wx:for="{{carts}}">
<view class="cart_container">
<view wx:if="{{!item.isSelect}}">
<icon class="item-select" bindtap="switchSelect" data-index="{{index}}" data-id="{{index}}" type="circle" size="20"></icon>
</view>
<view wx:elif="{{item.isSelect}}">
<icon class="item-select" bindtap="switchSelect" data-index="{{index}}" data-id="{{index}}" type="success" color="#f0145a" size="20"></icon>
</view>
<image class="item-image" src="https://img.aigexing.com{{item.imgUrl}}"></image>
<import src="https://img.aigexing.com../template/template.wxml" />
<view class="column">
<text class="title">{{item.title}}</text>
<image bindtap="delGoods" id="img{{index}}" data-index="{{index}}" src="https://img.aigexing.com../../images/del.png"></image>
<view class="row">
<text class="sku-price">￥{{item.price * item.count}}</text>
<view class="sku">
<template is="quantity" data="{{ ...item index:index}}" />
</view>
</view>
</view>
</view>
<view class="separate"></view>
</view></scroll-view></view>
<view class="bottom_total" hidden="{{hidden}}">
<view class="bottom_line"></view>
<view class="row">
<view wx:if="{{!isAllSelect}}">
<icon class="item-allselect" bindtap="allSelect" type="circle" size="20"></icon>
</view>
<view wx:elif="{{isAllSelect}}">
<icon class="item-allselect" bindtap="allSelect" type="success" color="#f0145a" size="20"></icon>
</view>
<text class="small_text">全选</text>
<text>合计:￥ </text>
<text class="price">{{totalMoney}}</text>
<button class="button-red" bindtap="toBuy" formType="submit">去结算 </button>
</view></view>
cart.wxss
@import "../template/template.wxss";
page{
background: #f3f4f5;
/* font-size: 37.5px; */
}
.column image {
width:33rpx;
height:35rpx;
display:inline-block;
overflow:hidden;
float:right;
margin-top: -40rpx;
margin-left:400rpx;
}
.J-shopping-cart-empty{
margin: 0;
padding: 0;
border: 0;
font: inherit;
font-size: 100%;
vertical-align: baseline;
}
.shopping-cart-empty {
height: 250px;
padding-top: 3.2rem;
padding-bottom: 1.6rem;
background-color: #fff;
text-align: center;
position: relative;
}
.shopping-cart-empty .bg{
position: absolute;
width: 16.29333rem;
height: 6.73333rem;
background: transparent url(data:image/png;base64 iVBORw0KGgoAAAANSUhEUgAAAm0AAAEXAQMAAADFlOHHAAAABlBMVEUAAAAAAAClZ7nPAAAAAnRSTlMAFRtOKdMAAArmSURBVHja5ZxNiBzHFcf/b2pcvUSt6UkOoYWG7RUE5 LgXtvIIzTsrGXIIST3HAxuWSbxYSEjCI4CiqY2MrIPSywiQhRyiHwLIQdBgiNwcMpswDYoiQkEBDa4iME5ug0JjM1oKofdmf6q7Z7proAgfezp fXrV69evffqA/jfX5es0tjEKs57xSrusmv1W5VVXIDLNnET9rFFmiMDbhG3hUnLIi52JLP4rWILFnHrFNvEXXJuw7Fnw3Lgo2Ovv1LsomevvzrCRWiLRmoLHJE9M5miBWmtS7C7YGQNF6 7IBK2VCcvuaCr1hr2LeUC16zh3hZt4K49s0Mb KY13Ajc5jAb2cWF4MDIIq6F2l12VrjTBauN83Thlp/BUXHQBJyjuuD4X4XeFMwI2Fg4hNzr3zvA0dToPTQTRYE/FQmuk//D/XcA/qE2RljjmBn6 o9E4u76ud O6U 0nunPzcLhogHnyUS6osV8ovXMrLth7F6UJqeykI5U4dcdwDG6L6bFugmH0UI6gy4uA951o3ATdIxut7/AeQbTUqSnZuHgOsrwS2 B6wEQy GCCYArJhxftEC/gDt I6IbOyYrkQBTJpyzaAEF5Aa1429E9MaO0U8CQ OAyuZNR0XckR rABYbXRG9Oef2C7jObxT94xkzbmj2bBTP/9sr4FxEJFwjjuIjHOVc z13FVwgKjxbny Pi2iS9PGWNnWcEQOwvRxu5IkEp7XJYiImlsdNEw80/tyoREkCOVM6EjeW8BR8AHBmSWumW1hALo0bAOPJQdQ6FghuN8T1QXqGHgCagGaGJiYgWgHH4kD0ADgCQ2XAsVVwPpxX35YdAD08OkNTXA/e4DPVARBoLdE14jYwXhq3HrmHuLg4Zh3gQkfHy J6ko84gLUjSh0EhEHOII/EuTgj2MgB4AJg94yGEl7KKdVlisTAgOvgLOjOHLfVM46QocrjHEViasQ9BsxxjgqmJqdzRuRwvhvR7l0j7kXgJjvAzXDf4FNGCPIurO9HjPaM49WLwAdMAJ1vaOnsGUb8AXgeN/KjDmubxit8/xDn6Fu47BpGIY9kHqe6kcvco3DPMAFwwFN9Q79gOs7hSIZRnx J 4AkwOFMMDGNkbNBDsdEqMKWCcfEi4e4QN Hp6CMxpnFOQil4v5RuJskgSu/FtAwRj88FdgemMMJIVnfiHsMuAMJ hgIYnPUxnMexcVJEsw4OIuzoDtQcK7iUQ2sG2PAHM5Hh4nEpFrpRjoDFkKhx7RWwMTQx8BEdpwNhMviRC08/XRP8BEU qTfAwyRXgxAZnFnpc8mSUyawa1HrkJ0 DXD4pdOAYyyeXyoQuY6qZZJ8hjpDX6oMDrAmWqxYwBb2USlG0aMJ8mGl8Ip59WPJEYHXzM0mMnjEnDezDqUULJW4suOpWpfiilPHErnmVxYXwF0J4s7IVjK7E6mcaQ1EGIAMG2y4V7R4bsnQVcTszshnFRePZ4CfQT3x Ycyy2aYicAPkpsoCuPp52jOggG9MwY3vFiR3GmBzH6vKFHZ5DNt0aFWD/pEkWPSnHGpMLg01Sano6Djb26qsQQsl1kkktPlRSQRFBZOKAsTpfVwiRTVTiWwXmzsqclJsvjfABalZdoguVxPcCZVVR8nPKv7aZ8Sg8Yq4qXY1pdElrgHF31LQhEuXRuyu P43KcDzwry9 X4DpMiyrcuPyR8CA2PPB9w6rpK9fR26UPjOGnyihV9VdnWPHEfpyE1NVza5VPyGFcTFuPviqeINGyOd1HgG8Rx ziOFKG8sDhXMB9cHH A40LrePaFnGRXekiu9Jt28XJBxonrOLIPs7iFD3BqnTs/wpnuWWVXTO bNejeMIqDhO7uOHstzZx9Gx1yCNtvhAstuoR cAYotdTRgzXM0S1NaNC1oPPisrT92riOhihqLxJzZn9lrOrcsUJAHinJo6Tlmwre 8K8EJdHK6Afy8bsOsmOMB9N5tH7gMvPFJTdwBO/DRbUbgA7DxSX7rHH/4wj3u gXQPf vnKo97uL50d9/fmFjCtQD84vXt9RzuK/Wlo9/tCCeHe6K dOw77yJToTwv8MTp2jj lxvZkvSmwOknRV3c8V eznrkTYEfzOrhGHDi9Z1s7XlTVFUYynCP79z7Q6aWtClwmcmauC9orXUeN4Kqh9Na6/vb2Y9VUDWX4zD9n3kCkqRKCtI0ybdkyAbgofS3jWMSNXN BuBnWmdqjs9OqG5ow7TWWuvfp 9dWmdgXr1xVuvZrXwixxn4cXuBAWMtlwtLNJJ0lW461nCCrmJkLbsh8cV9iyE1tTc shhSs9b2vkUckXjLYoROgnaFvcIaCRLSIk6SUBZXM0pmDCFrF18cDOg9a7hL6wh ZU 6YApvVtBdULcTB/ Gd25UcIx1k6POAMfORfncsz7Oh/d0Hjeuvf6a 2BP5XA0qY1jPtipHI4pWMUJkjUdNPPBToWF8pP0pFVcoOri6LU8TkIN6vUUtga6dbuQRqu4npdhLui1PC7GRVUvDKI90PXbhQLPUPbs4bYQ1NwiQnug6/ligAs0wOnYgEsnM2IVHAqRey JLYGS1eAG3EuGl/vrmdXIwxVwPzHc7A9FKtWiSbS88kxTzOHZV1KpVqBWwJlKPOHFWQo3iyI0ukYjTYtUyFFR2AwXRfvsb3PdDRGOmuLYYtqeJthsOA6rEVuUzTyJ4b1mODlyeKqqNGsWYZEMO/Muy6Zw4qa4/vo8IPWuYdgwOiXhD buzuXUtH7MRDBJcJ5qioOn5uri7ErUcJKGobXImDmLo3YznINklS0PRMQbSieTVYhsig2nfJdnVQpGKllxzxRCVr6PsjL iJPyAwNC2i99emtagetjUVphAFC UOafVeKlcCQAlK0NYfpqxSIe9JKyFwkBlG0GbNFu1ZjcS7l2IcsHWo5dUVHpcFM4KVE6adKGVGeqcGOxPG57dr48THBJr4CLvivLm9ZNrVaLBFC2CdVF NXcvorCIyndnhe8FLeG7qAig3VTLX9BOBU4v08flPfCVOj5JJzSTS5rWHvHKd/NnJ5M2oIjynA vD23POlKr3kcgMsyXBfO6/2Ktsi8vVVayuiCuFoFx6MKnCdWki4sw4Wg4ytMXbrg/bJdqBtgaysE4y5aftlE5wZaq G4W1a42EDr2yvgOFqdMm8boeWDVsCx0gWd2 BdSVgBVzoubqPdnS6PYxWnFWyjvfnyWyvgytfCSjy0iQsr4MqHPQH3FJ5bPnZ8WVXg1k7h3PK4P6EKd2EV3KQi8MXac/j6CllBFc4/hz/D0kXAl54WL1nEdaW0hmNAV473LOJC0bW2orMFbAjYxJ2yiOPA19JzAGFj3Pn0EpRpM1wbeCqN 2tj3NMpHL1sA7fQGGt4REcb Htqp1bTA0TawI9TuKanpXDgWgrXamgpDLiWik55w5NmSNBLqS3MvOk5ODG1U7hW01N6gt1HUjiGhpZCn7mpAYCh5qqARLxXUgEUiaaTbjTJ4ppOCQYipS JTsPFsTRh6XCPCQwbbX0IrmUibwU1biTeNB3o44ojmISdywWCGaxNgnIAt1Bz0YfRJRwK SDiaFccVmLsXPsKsHhYz/kRjEev1MXdxFFnttS5Nvdsqg7 2zZVB39fwN5pXXC3pcVT3cCjyKLqwDdCi6oDC32LqgMLO549Guim80eLONyj2CbuLqxeO3Zxz9vFnbaL 7Jd3Lpd3Ar52X8BXSURa9qZGGgAAAAASUVORK5CYII=);
left: 50%;
-webkit-transform: translateX(-50%);
transform: translateX(-50%);
background-size: 100%;
top: 0;
}
.shopping-cart-empty .cart{
width: 5.83333rem;
height: 7.46rem;
background: transparent url(data:image/png;base64 iVBORw0KGgoAAAANSUhEUgAAANwAAAEaCAMAAABNQsmuAAAAY1BMVEUAAAD6AIr32prUAHU4ByEmCxhWIjd0AEHpAIG6NXLwAIXsAIPjAnvjAH1oNk/4AIqvAGHEAGyonp2npKbpAYKLhon73Kz 66X5357/odv74577pM/yVq7kAH/6AIvzAIf/m9Nba mLAAAAHXRSTlMA6f7rJRcKgeEdlnA ukLCnlxgwvOWapTY37Kw AL3QMkAAAdeSURBVHja7V3bcqM6EARHKEiAMBc7tyX2/3/l2iAwztlUIZCQ1EfzsE9bLnc0PT3TujiKvAjKItRgn4fDOyY8ej7cAxKdxHY41IDY3g5Q4BhP2yL/iQ0jLfO0u0WbPWPDWLik6PpIxRzbG0Y5EfEA7nJ81JJPlEopvidwZzBoD3Ddny80aFFEygFb d6BYN2r5btsHDXW3zhtZK3ehn32K4feG2JuE7xhQwObuno QHuesJi3Nv7YQauQVq0z17cAMHdF22YAL7A0nJctHtTQvMPpIJCz HB7YoqiU6iGJ5nqAd3obJ53yD93GGGOKmlHwf14pSxiiFAgfpccmR 40CYhuW7tf5JhGel8v6zH5dNtKcItwgTUNw0dG6SYDRMRaF8Hj5gMElJ SqmTQNBUZXN8i0q6GrJo3AAxkgQSberWhCCx40uhpazkMfHcLRZgW7jca2VpDRsUYA0y44KyFC7F9UsNWuBkaH7RlhS/kJ2VNJ4B2xECGCkO8p5NDgWAAXwDnXgdXIMh5alBAh9gwB3KBQYKOBIvsMDHrhkN2vYDKEviuM4PupN26hpCdgEUDeNKYU8yIFFbBrxk4NrGcimlMNmJBMDP8meDQ74Vb pKlrgZeNlN0xUYLYRt5qI2pppHWDeweENMBOeQJ8VxV4EgU KVoDb7rpmLLF8TleKwKDrUovPyIui8p 9dVitcqX7Z4jLq3Dozqs1rb7Z8QcgcxF90uUAOjy8nseYOiIeJ1FlfGJhaU93hFDzTIl2QiPW0MnzF3kJ1yWGWvtj8nLY1Sis0Y7ozfjxseUc0RwEUutso6YJUTWJ2YL isBqdW83KV1yTANjCEvC0vOteEnBIe3omNL4IThGyypTR0nhrcF7JLO8AV3u6QzfMHdLukiYTQvB6W7WLOLzBZMaKU79nnJMZ9erHpwqT1wicEDGXIysOfR0trgEaGBdJXF7v1kDt3RspNyT8zaLOlKzIoykO4CupH0gjyw2iedcaUDJV3 PyAdf/UihOJpPunNXr59iDgtMhV8Wdv5FXGxfIrJfQN3J9Hiji31D1wXL9Uub0j3vHhUgXSp 6WSc17Giugsu0RK8xERjy1vruAS XLCLJm2vPPlpPPHJRISXbrkG3vnEiXl8sSUpPPovGoyyFdLF5POp8O4ebfY /HQmh2 coFpzeaL89K6NbtC8dqlasD8I91IJa3/05ngi8VAks6nipItBuehS7QcnIekWw7OQ2uWLy8T3lmzVGF7yjvSLde5yZr1h3RscYfiIemyxb3lRDpveme6XMMnl8gb0smjogu3uwfSeTOwDpTrlm7f HVqdph4UsUumwJSzvYBvnUSvniM8Yp0KhL qD eWLPSZFAebb0gnZKEzwbWBJBy92u73pBO/bYH84d0UsJVGOQP6So1CfeKdKoS/hhYU/dJR0v1Q6LeuERUrWuek65yHlyuTjl/SKcs4Q/Sla7nJV1l/ntCOtWu Yl0rg sSsbXjHReWLPVGsp5Ys2ukfDHwOo46dSMr1n4YM0mayT8QTq3e dVEu4J6Wi2rp544RLR9fv37luzKyXcj4E1XyfhfU/qOunWU84D0q2V8IdCOuwSrZZwH0gnu Z1V48cH1jpagnvZdxt0m2hnPPWrDS 1h7Bc/sAXzK8CbW2y3CbdMp7V//snd0k3RYJd550dCtpXCbdIOHt sbeZdKx9V2z 6QbjK XDX8dd12ibRI I52LA uavaufpHPWmk0um591dJZ0UuXSLZ/h7MAqVY5v hBXXSKZldu mKPWrKyV6bZPcdSaZZ2GrHSUdHLhNmalo2/NypucxdbPcdElku9jpJtfpTm6d2qWlFoY5yTpEt5pWjhJum/h3LqlOuqAY6QbsbVaRminBtakijtdhOtl3B3SUcLHN0IKPZnEXCEdJVncaV23yBGXKCE5n6C12rCNpBPEXuQZnz39lOrDJknXxdbix3NKhc5ToMyp97JSzZ5H4RC0QncLf3QEWasf2jiwWgZ2Q5aZGLwk6VJ7URyPlalXN6XSMUthtq09XvDfmsX8fdfctZnOBOmQf8oAOi/9enVJNS9jzKWTTQoo6yz/ p7hpZNDnUBeOsyKSeTIyglwYoKu3fiwegnJu9ERbREVgU5mSkko7tp1F57jweMPO6XIE0qxEGYzE7MtsypnyY5h m Z/3QxLzuGeacjs hAH42nJuPW4KU7MO8Gr4UFd4NX3fDtDrDdzwvIM14ULztGAepzhAgRIkSIECH0Gg U5czYxHr78JxZG4dZP5i33IjJnvSjVVtYcvBHJ9NIP8tK/afY1mAzsXNHytlhLws5Wc5/mlCzUUv5fNDZ/z3D16dpTnPukO/9R9R5PBtFmncQsuf5e iQsvnn8wUxrLSQl4yk ASy B pqXelcssgxsOhE0FRe 9g/yZc7v/TrZ4Mi81Cx0p97Vi/xPc3MKN9/dtLdx8u87AVvKMdamd7nLc0DJx0YeOWxK2OueIZUVh5uhxD48XhcrE8ReAb/tmFJQfqgAAAABJRU5ErkJggg==) no-repeat;
background-size: 100%;
margin: 0 auto;
}
.shopping-cart-empty .button {
width: 8.46667rem;
height: 1.5rem;
display: block;
margin: 20rpx auto;
}
.empty-text {
font-size: .64667rem;
color: #222;
margin-top: .53333rem;
line-height: .74667rem;
font-weight: 400;
}
.button-primary {
border: 1px solid #de3c96;
color: #de3c96;
text-decoration: none;
text-align: center;
display: block;
border-radius: .21267rem;
line-height: 1.5rem;
-webkit-appearance: none;
background: none;
padding: 0 .26667rem;
margin: 0;
white-space: nowrap;
position: relative;
text-overflow: ellipsis;
font-size: .74333rem;
font-family: inherit;
cursor: pointer;
user-select: none;
}
.cart_container {
display: flex;
flex-direction: row;
background-color: #FFFFFF;
margin-bottom: 10rpx;
}
.scroll {
margin-bottom: 120rpx;
}
.column {
display: flex;
flex-direction: column;
}
.row {
display: flex;
flex-direction: row;
align-items: center;
}
.sku {
margin-left: 100rpx;
position: absolute;
right: 30rpx;
margin-top: 30rpx;
}
.sku-price {
color: red;
position: relative;
margin-top: 30rpx;
}
.price {
color: red;
position: relative;
}
.title {
font-size: 32rpx;
margin-top: 40rpx;
}
.small_text {
font-size: 28rpx;
margin-right: 40rpx;
margin-left: 25rpx;
}
.item-select {
width: 40rpx;
height: 40rpx;
margin-top: 90rpx;
margin-left: 20rpx;
}
.item-allselect {
width: 40rpx;
height: 40rpx;
margin-left: 20rpx;
margin-top:25rpx;
}
.item-image {
width: 180rpx;
height: 180rpx;
margin: 20rpx;
}
.bottom_line {
width: 100%;
height: 2rpx;
background: lightgray;
}
.bottom_total {
position: fixed;
display: flex;
flex-direction: column;
bottom: 0;
width: 100%;
height: 120rpx;
line-height: 120rpx;
background: white; /* margin-top: 300rpx; */
border-top: 1rpx solid #ccc; z-index: 99;
}
.button-red {
background-color: #f0145a;
position: fixed;
right: 0;
color: white;
text-align: center;
display: inline-block;
font-size: 30rpx;
border-radius: 0rpx;
width: 30%;
height: 120rpx;
line-height: 120rpx; /* border: 1rpx solid #ccc; */
}
cart.js
/**
* 页面的初始数据
*/
data: {
carts: [] //数据
iscart: false
hidden: null
isAllSelect: false
totalMoney: 0
}
onShow: function () {
// 获取产品展示页保存的缓存数据（购物车的缓存数组，没有数据，则赋予一个空数组）
var arr = wx.getStorageSync('cart') || [];
console.info("缓存数据：" arr); // 有数据的话，就遍历数据，计算总金额 和 总数量
if (arr.length > 0) {
// 更新数据
this.setData({
carts: arr
iscart: true
hidden: false
});
console.info("缓存数据：" this.data.carts);
}else{
this.setData({
iscart: false
hidden: true
});
}
}
三、购物车商品计算和删除缓存商品cart.js
//勾选事件处理函数
switchSelect: function (e) {
// 获取item项的id，和数组的下标值
var Allprice = 0 i = 0;
let id = e.target.dataset.id
index = parseInt(e.target.dataset.index);
this.data.carts[index].isSelect = !this.data.carts[index].isSelect; //价钱统计
if (this.data.carts[index].isSelect) {
this.data.totalMoney = this.data.totalMoney (this.data.carts[index].price * this.data.carts[index].count);
} else {
this.data.totalMoney = this.data.totalMoney - (this.data.carts[index].price * this.data.carts[index].count);
}
//是否全选判断
for (i = 0; i < this.data.carts.length; i ) {
Allprice = Allprice (this.data.carts[index].price * this.data.carts[index].count);
}
if (Allprice == this.data.totalMoney) {
this.data.isAllSelect = true;
} else {
this.data.isAllSelect = false;
}
this.setData({
carts: this.data.carts
totalMoney: this.data.totalMoney
isAllSelect: this.data.isAllSelect
})
}
//全选
allSelect: function (e) {
//处理全选逻辑
let i = 0;
if (!this.data.isAllSelect) {
this.data.totalMoney = 0;
for (i = 0; i < this.data.carts.length; i ) {
this.data.carts[i].isSelect = true;
this.data.totalMoney = this.data.totalMoney (this.data.carts[i].price * this.data.carts[i].count);
}
} else {
for (i = 0; i < this.data.carts.length; i ) {
this.data.carts[i].isSelect = false;
}
this.data.totalMoney = 0;
}
this.setData({
carts: this.data.carts
isAllSelect: !this.data.isAllSelect
totalMoney: this.data.totalMoney
})
} // 去结算
toBuy() {
wx.showToast({
title: '去结算'
icon: 'success'
duration: 3000
});
this.setData({
showDialog: !this.data.showDialog
});
} //数量变化处理
handleQuantityChange(e) {
var componentId = e.componentId;
var quantity = e.quantity;
this.data.carts[componentId].count.quantity = quantity;
this.setData({
carts: this.data.carts
});
}
/* 减数 */
delCount: function (e) {
var index = e.target.dataset.index;
console.log("刚刚您点击了加一");
var count = this.data.carts[index].count; // 商品总数量-1
if (count > 1) {
this.data.carts[index].count--;
}
// 将数值与状态写回
this.setData({
carts: this.data.carts
});
console.log("carts:" this.data.carts);
this.priceCount();
}
/* 加数 */
addCount: function (e) {
var index = e.target.dataset.index;
console.log("刚刚您点击了加 ");
var count = this.data.carts[index].count; // 商品总数量 1
if (count < 10) {
this.data.carts[index].count ;
}
// 将数值与状态写回
this.setData({
carts: this.data.carts
});
console.log("carts:" this.data.carts);
this.priceCount();
}
priceCount: function (e) {
this.data.totalMoney = 0;
for (var i = 0; i < this.data.carts.length; i ) {
if (this.data.carts[i].isSelect == true) {
this.data.totalMoney = this.data.totalMoney (this.data.carts[i].price * this.data.carts[i].count);
}
}
this.setData({
totalMoney: this.data.totalMoney
})
}
/* 删除item */
delGoods: function (e) {
this.data.carts.splice(e.target.id.substring(3) 1); // 更新data数据对象
if (this.data.carts.length > 0) {
this.setData({
carts: this.data.carts
})
wx.setStorageSync('cart' this.data.carts);
this.priceCount();
} else {
this.setData({
cart: this.data.carts
iscart: false
hidden: true
})
wx.setStorageSync('cart' []);
}
}
备注微信小程序微商城系列 都是通过https 动态获取数据并展示的，建议从第一篇开始阅读。大家多多支持本系列文章会继续更新下去，谢谢各位！大家在使用过程中有哪些建议可以提出来，我们一起学习哈~~~
微信小程序微商城系列
小程序微商城（一）：https框架搭建并实现导航功能
微信小程序微商城（二）：电商首页轮播、分类导航和新品特卖实现
小程序微商城（三）：电商首页无限下拉刷新动态API数据实现
微信小程序微商城（四）：动态API实现商品详情页（上）
微信小程序微商城（五）：动态API实现商品详情页（下）
微信小程序微商城（六）：动态API实现新品特卖商品流式布局
微信小程序微商城（七）：动态API实现商品分类
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