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vuejs手把手教你寫一個完整的購物車實例代碼

 更新時間：2017年07月06日 15:46:56   作者：走火愛上魚  
這篇文章主要介紹了vuejs-手把手教你寫一個完整的購物車實例代碼，具有一定的參考價值，感興趣的小伙伴們可以參考一下

由于我們公司是主營業(yè)務是海淘，所以每個項目都是類似淘寶天貓之類的商城，那么購物車就是一個重點開發(fā)功能模塊。介于之前我都是用jq來寫購物車的，這次就用vuejs來寫一個購物車。下面我就從全選，數(shù)量控制器，運費，商品金額計算等方法來演示一下一個能用在實際場景的購物車是怎么做出來的以及記錄一下這次用vuejs踩過的坑。

1.一層數(shù)據結構-全選

下面這段代碼和vuejs官網里面checkbox綁定很像。不明白的可以直接上vuejs官網看看。

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>vuejs-全選</title>
<style type="text/css">
* {
  padding: 0;
  margin: 0;
}
a {
  color: #333;
  text-decoration:none;
}
</style>
</head>
<body>
<label>
  <input type="checkbox" name="all" v-on:click="chooseAll" v-model="selectArr.length==goodsList.length" />
  <span>全選</span>
</label>
<div v-for="(index, item) in goodsList">
  <a href="javascript:;" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >
    <input type="checkbox" :value="index" v-model="selectArr" />
    商品名稱:<span v-html="item.name"></span> |
    價格:<span v-html="item.price"></span>
  </a>
</div>
<label>
  <input type="checkbox" name="all" v-on:click="chooseAll" v-model="selectArr.length==goodsList.length" />
  <span>全選</span>
</label>
<script src="http://cdn.bootcss.com/vue/1.0.7/vue.js"></script>
<script>
var vue = new Vue({
  el : 'body',
  data : {
    goodsList : [
      {
        name : '山本漢方1',
        price : '19.00'
      },
      {
        name : '山本漢方2',
        price : '19.00'
      },
      {
        name : '山本漢方3',
        price : '19.00'
      },
      {
        name : '山本漢方4',
        price : '19.00'
      },
      {
        name : '山本漢方5',
        price : '19.00'
      },
    ],
    selectArr : []
  },
  ready : function() {},
  methods : {
    chooseAll : function(event) {
      var oThis = this;
      oThis.selectArr = [];
      if ( event.currentTarget.checked ) {
        oThis.goodsList.forEach(function(item , index) {
          oThis.selectArr.push(index);
        });
      }
      console.log(oThis.selectArr);
    }
  }
})
</script>
</body>
</html>

2.二層數(shù)據結構-全選

一層數(shù)據結構的購物車在現(xiàn)實中是很少看到的，比如我們最熟悉的淘寶購物車是按照店鋪分的，那么必然是多層的數(shù)據結構。這次在寫這個二層數(shù)據接口的全選，碰到一個很大的坑，一開始我是用了一層數(shù)據結構的數(shù)據，發(fā)現(xiàn)當對象數(shù)組里面的某個值改變了，視圖竟然沒有觸發(fā)！，所以會造成下面所有的checkbox都被選中了，最上面的那個全選checkbox竟然還是沒有被選中。感覺告訴我這是vuejs的坑，后來發(fā)現(xiàn)是js的坑。具體可以看這個。方法是百度到了，可是放我這里沒有用（應該是版本問題）。于是我就改了數(shù)據結構。

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>vuejs-全選</title>
<style type="text/css">
* {
  padding: 0;
  margin: 0;
}
a {
  color: #333;
  text-decoration:none;
}
.goods-item {
  display: block;
}
.store-item {
  margin-bottom: 20px;
}
</style>
</head>
<body>
<div v-for="(index1, item) in goodsObj" class="store-item">
  <p>
    <span v-html="item.name"></span>
    <label>
      <input type="checkbox" name="all" v-on:click="chooseShopGoods(index1)" v-model="item.checked" />
      <span>全選</span>
    </label>
  </p>
  <a href="javascript:;" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" v-for="(index, data) in item.list" class="goods-item">
    <input type="checkbox" v-model="data.checked" v-on:click="choose(index1, index)" />
    商品名稱:<span v-html="data.name"></span> |
    價格:<span v-html="data.price"></span>
  </a>
</div>
<label>
  <input type="checkbox" name="all" v-on:click="chooseAllGoods()" v-model="allChecked" />
  <span>全選</span>
</label>
<script src="http://cdn.bootcss.com/vue/1.0.7/vue.js"></script>
<script>
var goodsObj = [
  {
    name : '大胖的店',
    checked : false,
    list : [
      {
        name : '麻辣二胖',
        price : 23.00,
        realStock : 10,
        fare : 1.5,
        num : 1,
        checked : false,
      },

      {
        name : '香辣二胖',
        price : 21.00,
        realStock : 2,
        fare : 1.5,
        num : 2,
        checked : false,
      },

      {
        name : '紅燒二胖',
        price : 88.00,
        realStock : 8,
        fare : 1.5,
        num : 4,
        checked : false,
      }
    ]
  },

  {
    name : '二胖的店',
    checked : false,
    list : [
      {
        name : '漂亮的裙子',
        price : 166.00,
        realStock : 10,
        fare : 2,
        num : 1,
        checked : false,
      },

      {
        name : '漂亮的短袖',
        price : 188.00,
        realStock : 2,
        fare : 1.5,
        num : 2,
        checked : false,
      },

      {
        name : '漂亮的鞋子',
        price : 299.00,
        realStock : 1,
        fare : 3,
        num : 1,
        checked : false,
      }
    ]
  },

  {
    name : '胖胖的店',
    checked : false,
    list : [
      {
        name : '福滿多',
        price : 3.00,
        realStock : 10,
        fare : .5,
        num : 10,
        checked : false,
      },

      {
        name : '精品衛(wèi)龍',
        price : 1.50,
        realStock : 2,
        fare : 2,
        num : 2,
        checked : false,
      },

      {
        name : '周長江',
        price : 2.50,
        realStock : 3,
        fare : 5,
        num : 2,
        checked : false,
      }
    ]
  },
];
var vue = new Vue({
  el : 'body',
  data : {
    goodsObj : goodsObj,
    allChecked : false
  },
  ready : function() {

  },
  methods : {
    // 全部商品全選
    chooseAllGoods : function() {
      var flag = true;
      if ( this.allChecked ) {
        flag = false;
      }
      for ( var i = 0, len = this.goodsObj.length; i < len; i++ ) {
        this.goodsObj[i]['checked'] = flag;
        var list = this.goodsObj[i]['list'];
        for ( var k = 0, len1 = list.length; k < len1; k++ ) {
          list[k]['checked'] = flag;
        }
      }
      this.allChecked = !this.allChecked;
    },

    // 每個店鋪全選
    chooseShopGoods : function( index) {
      var list = this.goodsObj[index]['list'],
        len = list.length;
      if ( this.goodsObj[index]['checked'] ) {
        for (var i = 0; i < len; i++ ) {
          list[i]['checked'] = false;
        }
      } else {
        for (var i = 0; i < len; i++ ) {
          list[i]['checked'] = true;
        }
      }
      this.goodsObj[index]['checked'] = !this.goodsObj[index]['checked'];

      // 判斷是否選擇所有商品的全選
      this.isChooseAll();
    },

    // 單個選擇
    choose : function( index1, index) {
      var list = this.goodsObj[index1]['list'],
        len = list.length;
      if ( list[index]['checked'] ) {
        this.goodsObj[index1]['checked'] = false;
        this.allChecked = false;
        list[index]['checked'] = !list[index]['checked'];
      } else {
        list[index]['checked'] = !list[index]['checked'];

        // 判斷是否選擇當前店鋪的全選
        var flag = true;
        for (var i = 0; i < len; i++ ) {
          if ( list[i]['checked'] == false ) {
            flag = false;
            break;
          }
        }
        flag == true ? this.goodsObj[index1]['checked'] = true : this.goodsObj[index1]['checked'] = false;
      }

      // 判斷是否選擇所有商品的全選
      this.isChooseAll();
    },

    // 判斷是否選擇所有商品的全選
    isChooseAll : function() {
      var flag1 = true;
      for ( var i = 0, len = this.goodsObj.length; i < len; i++ ) {
        if ( this.goodsObj[i]['checked'] == false ) {
          flag1 = false;
          break;
        }
      }
      flag1 == true ? this.allChecked = true : this.allChecked = false;
    },

  }
})
</script>
</body>
</html>

3.一層數(shù)據結構-數(shù)量選擇器

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>vuejs-數(shù)量選擇器(1層數(shù)據結構)</title>
<style type="text/css">
*{
  padding:0;
  margin: 0;
  box-sizing: border-box;
  font-size: 16px;
}
.clearfix:after {
  content: ".";
  visibility: hidden;
  display: block;
  height: .1px;
  font-size: .1em;
  line-height: 0;
  clear: both;
}
.quantity-selector {
  margin-bottom: 20px;
  width: 8.571rem;
  line-height: 2.857rem;
  border: 1px solid #d1d6e4;
  border-radius: 3px;
}
.quantity-selector .reduce, 
.quantity-selector .add {
  float: left;
  width: 33.33%;
  border-right: 1px solid #d1d6e4;
  text-align: center;
  cursor: pointer;
}
.quantity-selector .number {
  float: left;
  width: 33.33%;
  height: 2.857rem;
  padding: .5rem 0;
  line-height: 1rem;
  border: none;
  text-align: center;
}
.quantity-selector .add {
  border-left: 1px solid #d1d6e4;
  border-right: none;
}
.quantity-selector .disable {
  color: #d2d2d2;
  cursor: default;
}
</style>
</head>
<body>

<div v-for="data in goodsList">
  <p>商品數(shù)量 ：<span v-html="data.num"></span></p>
  <p>商品庫存 ：<span v-html="data.realStock"></span></p>
  <div class="quantity-selector clearfix">
    <span class="reduce" v-on:click="numChange($index, -1)" v-bind:class="{ 'disable' : data.num==1 }">－</span>
    <input type="number" v-bind:value="data.num" class="number" v-bind:data-realStock="data.realStock" v-on:keyUp="numEntry($index)" v-on:keyDown="numEntry($index)" v-model="data.num"/>
    <span class="add" v-on:click="numChange($index, 1)" v-bind:class="{ 'disable' : data.num==data.realStock }">＋</span>
  </div>
</div>

<script src="http://cdn.bootcss.com/vue/1.0.7/vue.js"></script>
<script>
var vue = new Vue({
  el : 'body',
  data : {
    goodsList : [
      {
        name : '山本漢方1',
        price : '19.00',
        realStock : 10,
        num : 1
      },
      {
        name : '山本漢方1',
        price : '19.00',
        realStock : 7,
        num : 8
      },
      {
        name : '山本漢方1',
        price : '19.00',
        realStock : 2,
        num : 2
      },
    ]
  },
  ready : function() {},
  methods : {
    numChange : function(index, numChange) {
      var goods = this.goodsList[index];
      if ( numChange == 1 ) {
        goods.num++;
      } else if ( numChange == -1 ) {
        goods.num--;
      }

      if ( goods.num <= 1 ) {
        goods.num = 1;
      } 

      if ( goods.num >= goods.realStock ) {
        goods.num = goods.realStock;
      }
    },

    numEntry : function(index) {
      var goods = this.goodsList[index];
      if ( goods.num <=1 ) {
        goods.num = 1;
      }

      if ( goods.num > goods.realStock ) {
        goods.num = goods.realStock;
      }

    }
    
  }
})
</script>
</body>
</html>

4.二層數(shù)據結構-數(shù)據選擇器

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>vuejs-數(shù)量選擇器(2層數(shù)據結構)</title>
<style type="text/css">
*{
  padding:0;
  margin: 0;
  box-sizing: border-box;
  font-size: 16px;
}
a {
  text-decoration: none;
  color: #333;
}
.clearfix:after {
  content: ".";
  visibility: hidden;
  display: block;
  height: .1px;
  font-size: .1em;
  line-height: 0;
  clear: both;
}
.quantity-selector {
  margin: 0 auto;
  width: 8.571rem;
  line-height: 30px;
  border: 1px solid #d1d6e4;
  border-radius: 3px;
}
.quantity-selector .reduce, 
.quantity-selector .add {
  float: left;
  width: 33.33%;
  border-right: 1px solid #d1d6e4;
  text-align: center;
  cursor: pointer;
}
.quantity-selector .number {
  float: left;
  width: 33.33%;
  height: 30px;
  border: none;
  padding-left: 10px;
  text-align: center;
}
.quantity-selector .add {
  border-left: 1px solid #d1d6e4;
  border-right: none;
}
.quantity-selector .disable {
  color: #d2d2d2;
  cursor: default;
}

/*店鋪開始*/
.store-item {
  width: 600px;
  margin: 30px auto;
}
.store-item th {
  height: 40px;
  background: #d2d2d2;
  -webkit-text-stroke: 1px #ff7500;
  font-size: 18px;
}
.store-item td {
  height: 60px;
  text-align: center;
}
.cal-store-box {
  text-align: right;
}
.store-footer {
  width: 600px;
  margin: 50px auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
/*店鋪結束*/
</style>
</head>
<body>
<div class="store-item" v-for="(index1, item) in goodsObj"> 
  <p v-html="index1"></p>
  <table class="store-item">
    <col width="10%"></col>
    <col width="10%"></col>
    <col width="20%"></col>
    <col width="10%"></col>
    <col width="40%"></col>
    <col width="10%"></col>
    <thead class="thead">
      <tr>
        <th>選擇</th>
        <th>商品</th>
        <th>單價</th>
        <th>運費</th>
        <th>數(shù)量</th>
        <th>操作</th>
      </tr>
    </thead>
    <tbody>
      <tr v-for="(index, data) in item">
        <td>
          
        </td>
        <td>
          <p><span v-html="data.name"></span></p>
        </td>
        <td v-html="(data.price).toFixed(2)"></td>
        <td v-html="(data.fare).toFixed(2)"></td>
        <td>
          <div class="quantity-selector clearfix">
            <span class="reduce" v-on:click="numChange(index1, $index, -1)" v-bind:class="{ 'disable' : data.num==1 }">－</span>
            <input type="number" v-bind:value="data.num" class="number" v-bind:data-realStock="data.realStock" v-on:keyUp="numEntry(index1, $index)" v-on:keyDown="numEntry(index1, $index)" v-model="data.num"/>
            <span class="add" v-on:click="numChange(index1, $index, 1)" v-bind:class="{ 'disable' : data.num==data.realStock }">＋</span>
          </div>
        </td>
        <td>
          <a href="javascript:;" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >刪除</a>
        </td>
      </tr>
    </tbody>
  </table>
  <div class="cal-store-box">
    <p>店鋪總運費: <span v-html="calEveryFare(index1)"></span></p>
    <p>店鋪商品總金額: <span v-html="calEveryStore(index1)"></span></p>
  </div>
</div>

<div class="store-footer">
  <!-- <a href="javascript:;" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >
    <input type="checkbox" />
    <span>全選</span>
  </a> -->
  <div class="cal-box">
    <p>商品總金額:<span v-html="totalFare"></span></p>
    <p>運費總金額:<span v-html="totalMoney"></span></p>
  </div>
</div>

<script src="http://cdn.bootcss.com/vue/1.0.7/vue.js"></script>
<script>
var goodsObj = {
  '大胖的店' : [
    {
      name : '康師傅',
      price : 23.00,
      realStock : 10,
      fare : 1.5,
      num : 1
    },

    {
      name : '今麥郎',
      price : 26.00,
      realStock : 2,
      fare : 1.5,
      num : 2
    },

    {
      name : '比巴卜',
      price : 88.00,
      realStock : 8,
      fare : 1.5,
      num : 4
    }
  ],

  '二胖的店' : [
    {
      name : '好看的鞋子',
      price : 23.00,
      realStock : 7,
      fare : 2,
      num : 1
    },

    {
      name : '好看的裙子',
      price : 26.00,
      realStock : 5,
      fare : 2,
      num : 5
    },

    {
      name : '好看的短袖',
      price : 88.00,
      realStock : 10,
      fare : 2,
      num : 1
    }
  ],

  '胖胖的店' : [
    {
      name : '福滿多1號',
      price : 26.00,
      realStock : 7,
      fare : 3,
      num : 1
    },

    {
      name : '福滿多2號',
      price : 26.00,
      realStock : 7,
      fare : 3,
      num : 1
    },

    {
      name : '經典衛(wèi)龍辣條',
      price : 16.00,
      realStock : 50,
      fare : 3,
      num : 5
    },

    {
      name : '霸王牛津',
      price : 80.00,
      realStock : 10,
      fare : 3,
      num : 6
    }
  ]
};
var vue = new Vue({
  el : 'body',
  data : {
    goodsObj : goodsObj,
    totalMoney : 0,
    totalFare : 0
  },
  ready : function() {
    this.calTotalMoney();
    this.calTotalFare();
  },
  methods : {
    numChange : function(index1, index, numChange) {
      var goods = this.goodsObj[index1][index],
        oThis = this;
      if ( numChange == 1 ) {
        goods.num++;
      } else if ( numChange == -1 ) {
        goods.num--;
      }

      if ( goods.num <= 1 ) {
        goods.num = 1;
      } 

      if ( goods.num >= goods.realStock ) {
        goods.num = goods.realStock;
      }
      this.calTotalMoney();
    },

    numEntry : function(index1, index) {
      var goods = this.goodsObj[index1][index];
      if ( goods.num <=1 ) {
        goods.num = 1;
      }

      if ( goods.num > goods.realStock ) {
        goods.num = goods.realStock;
      }
      this.calTotalMoney();
    },

    calEveryStore : function(index) {
      var everyStoreMoney = 0;
      this.goodsObj[index].forEach(function(item, index, arr) {
        everyStoreMoney += parseFloat(item.price) * parseFloat(item.num);
      });
      return everyStoreMoney.toFixed(2);
    },

    calEveryFare : function(index) {
      var everyStoreFare = 0;
      this.goodsObj[index].forEach(function(item, index, arr) {
        everyStoreFare += parseFloat(item.fare) * parseFloat(item.num);
      });
      return everyStoreFare.toFixed(2);
    },

    calTotalMoney : function () {
      var oThis = this;
      this.totalMoney = 0;
      for ( var x in this.goodsObj ) {
        this.goodsObj[x].forEach(function(item, index, arr) {
          oThis.totalMoney += parseFloat(item.price) * parseFloat(item.num);
        });
      }
      this.totalMoney = this.totalMoney.toFixed(2);
    },

    calTotalFare : function () {
      var oThis = this;
      this.totalFare = 0;
      for ( var x in this.goodsObj ) {
        this.goodsObj[x].forEach(function(item, index, arr) {
          oThis.totalFare += parseFloat(item.fare) * parseFloat(item.num);
        });
      }
      this.totalFare = this.totalFare.toFixed(2);
    },
    
  }
})
</script>
</body>
</html>

5.一個完整的購物車

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>vuejs-數(shù)量選擇器(2層數(shù)據結構)</title>
<style type="text/css">
*{
  padding:0;
  margin: 0;
  box-sizing: border-box;
  font-size: 16px;
}
a {
  text-decoration: none;
  color: #333;
}
.clearfix:after {
  content: ".";
  visibility: hidden;
  display: block;
  height: .1px;
  font-size: .1em;
  line-height: 0;
  clear: both;
}
.quantity-selector {
  margin: 0 auto;
  width: 8.571rem;
  line-height: 30px;
  border: 1px solid #d1d6e4;
  border-radius: 3px;
}
.quantity-selector .reduce, 
.quantity-selector .add {
  float: left;
  width: 33.33%;
  border-right: 1px solid #d1d6e4;
  text-align: center;
  cursor: pointer;
}
.quantity-selector .number {
  float: left;
  width: 33.33%;
  height: 30px;
  border: none;
  padding-left: 10px;
  text-align: center;
}
.quantity-selector .add {
  border-left: 1px solid #d1d6e4;
  border-right: none;
}
.quantity-selector .disable {
  color: #d2d2d2;
  cursor: default;
}

label {
  cursor: pointer;
}

.choose-all {
  margin-left: 20px;
}

/*店鋪開始*/
.store-item {
  width: 600px;
  margin: 30px auto;
}
.store-item th {
  height: 40px;
  background: #d2d2d2;
  -webkit-text-stroke: 1px #ff7500;
  font-size: 18px;
}
.store-item td {
  height: 60px;
  text-align: center;
}
.cal-store-box {
  text-align: right;
}
.store-footer {
  width: 600px;
  margin: 50px auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
/*店鋪結束*/
</style>
</head>
<body>
<div class="store-item" v-for="(index1, item) in goodsObj"> 
  <p>
    <span v-html="item.name"></span>
    <label class="choose-all">
      <input type="checkbox" name="all" v-on:click="chooseShopGoods(index1)" v-model="item.checked" />
      <span>全選</span>
    </label>
  </p>
  <table class="store-item">
    <col width="10%"></col>
    <col width="15%"></col>
    <col width="15%"></col>
    <col width="10%"></col>
    <col width="40%"></col>
    <col width="10%"></col>
    <thead class="thead">
      <tr>
        <th>選擇</th>
        <th>商品</th>
        <th>單價</th>
        <th>運費</th>
        <th>數(shù)量</th>
        <th>操作</th>
      </tr>
    </thead>
    <tbody>
      <tr v-for="(index, data) in item.list">
        <td>
          <input type="checkbox" name="all" v-model="data.checked" v-on:click="choose(index1, index)" />
        </td>
        <td>
          <p><span v-html="data.name"></span></p>
        </td>
        <td v-html="(data.price).toFixed(2)"></td>
        <td v-html="(data.fare).toFixed(2)"></td>
        <td>
          <div class="quantity-selector clearfix">
            <span class="reduce" v-on:click="numChange(index1, $index, -1)" v-bind:class="{ 'disable' : data.num==1 }">－</span>
            <input type="number" v-bind:value="data.num" class="number" v-bind:data-realStock="data.realStock" v-on:keyUp="numEntry(index1, $index)" v-on:keyDown="numEntry(index1, $index)" v-model="data.num"/>
            <span class="add" v-on:click="numChange(index1, $index, 1)" v-bind:class="{ 'disable' : data.num==data.realStock }">＋</span>
          </div>
        </td>
        <td>
          <a href="javascript:;" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" v-on:click="delGoods(index1, index)">刪除</a>
        </td>
      </tr>
    </tbody>
  </table>
  <div class="cal-store-box">
    <p>店鋪總運費: <span v-html="calEveryFare(index1)"></span></p>
    <p>店鋪商品總金額: <span v-html="calEveryStore(index1)"></span></p>
  </div>
</div>

<div class="store-footer">
  <label>
    <input type="checkbox" v-on:click="chooseAllGoods($event)" v-model="allChecked" />
    <span>全選</span>
  </label>
  <div class="cal-box">
    <p>商品總運費:<span v-html="totalFare.toFixed(2)"></span></p>
    <p>商品總金額:<span v-html="totalMoney.toFixed(2)"></span></p>
  </div>
</div>

<script src="http://cdn.bootcss.com/vue/1.0.7/vue.js"></script>
<script>
var goodsObj = [
  {
    name : '大胖的店',
    checked : false,
    list : [
      {
        name : '麻辣二胖',
        price : 23.00,
        realStock : 10,
        fare : 1.5,
        num : 1,
        checked : false,
      },

      {
        name : '香辣二胖',
        price : 21.00,
        realStock : 2,
        fare : 1.5,
        num : 2,
        checked : false,
      },

      {
        name : '紅燒二胖',
        price : 88.00,
        realStock : 8,
        fare : 1.5,
        num : 4,
        checked : false,
      }
    ]
  },

  {
    name : '二胖的店',
    checked : false,
    list : [
      {
        name : '漂亮的裙子',
        price : 166.00,
        realStock : 10,
        fare : 2,
        num : 1,
        checked : false,
      },

      {
        name : '漂亮的短袖',
        price : 188.00,
        realStock : 2,
        fare : 1.5,
        num : 2,
        checked : false,
      },

      {
        name : '漂亮的鞋子',
        price : 299.00,
        realStock : 1,
        fare : 3,
        num : 1,
        checked : false,
      }
    ]
  },

  {
    name : '胖胖的店',
    checked : false,
    list : [
      {
        name : '福滿多',
        price : 3.00,
        realStock : 10,
        fare : .5,
        num : 10,
        checked : false,
      },

      {
        name : '精品衛(wèi)龍',
        price : 1.50,
        realStock : 2,
        fare : 2,
        num : 2,
        checked : false,
      },

      {
        name : '周長江',
        price : 2.50,
        realStock : 3,
        fare : 5,
        num : 2,
        checked : false,
      }
    ]
  },
];
var vue = new Vue({
  el : 'body',
  data : {
    goodsObj : goodsObj,
    totalMoney : 0,
    totalFare : 0,
    allChecked : false
  },
  ready : function() {},
  methods : {

    // 全部商品全選
    chooseAllGoods : function() {
      var flag = true;
      if ( this.allChecked ) {
        flag = false;
      }
      for ( var i = 0, len = this.goodsObj.length; i < len; i++ ) {
        this.goodsObj[i]['checked'] = flag;
        var list = this.goodsObj[i]['list'];
        for ( var k = 0, len1 = list.length; k < len1; k++ ) {
          list[k]['checked'] = flag;
        }
      }
      this.allChecked = !this.allChecked;
      this.calTotalMoney();
      this.calTotalFare();
    },

    // 每個店鋪全選
    chooseShopGoods : function( index) {
      var list = this.goodsObj[index]['list'],
        len = list.length;
      if ( this.goodsObj[index]['checked'] ) {
        for (var i = 0; i < len; i++ ) {
          list[i]['checked'] = false;
        }
      } else {
        for (var i = 0; i < len; i++ ) {
          list[i]['checked'] = true;
        }
      }
      this.goodsObj[index]['checked'] = !this.goodsObj[index]['checked'];

      // 判斷是否選擇所有商品的全選
      this.isChooseAll();

      this.cal(index);
    },

    // 單個選擇
    choose : function( index1, index) {
      var list = this.goodsObj[index1]['list'],
        len = list.length;
      if ( list[index]['checked'] ) {
        this.goodsObj[index1]['checked'] = false;
        this.allChecked = false;
        list[index]['checked'] = !list[index]['checked'];
      } else {
        list[index]['checked'] = !list[index]['checked'];

        // 判斷是否選擇當前店鋪的全選
        var flag = true;
        for (var i = 0; i < len; i++ ) {
          if ( list[i]['checked'] == false ) {
            flag = false;
            break;
          }
        }
        flag == true ? this.goodsObj[index1]['checked'] = true : this.goodsObj[index1]['checked'] = false;
      }

      // 判斷是否選擇所有商品的全選
      this.isChooseAll();

      this.cal(index);
    },

    // 判斷是否選擇所有商品的全選
    isChooseAll : function() {
      var flag1 = true;
      for ( var i = 0, len = this.goodsObj.length; i < len; i++ ) {
        if ( this.goodsObj[i]['checked'] == false ) {
          flag1 = false;
          break;
        }
      }
      flag1 == true ? this.allChecked = true : this.allChecked = false;
    },

    // 商品數(shù)量控制
    numChange : function(index1, index, numChange) {
      var goods = this.goodsObj[index1]['list'][index],
        oThis = this;
      if ( numChange == 1 ) {
        goods.num++;
      } else if ( numChange == -1 ) {
        goods.num--;
      }

      if ( goods.num <= 1 ) {
        goods.num = 1;
      } 

      if ( goods.num >= goods.realStock ) {
        goods.num = goods.realStock;
      }

      this.cal(index);
    },

    // 用戶填寫容錯處理
    numEntry : function(index1, index) {
      var goods = this.goodsObj[index1]['list'][index];
      if ( goods.num <=1 ) {
        goods.num = 1;
      }

      if ( goods.num > goods.realStock ) {
        goods.num = goods.realStock;
      }
      this.cal(index);
    },

    // 計算每個店鋪的商品總額
    calEveryStore : function(index) {
      var everyStoreMoney = 0,
        list = this.goodsObj[index]['list'];
      list.forEach(function(item, index, arr) {
        if ( list[index]['checked'] ) { 
          everyStoreMoney += parseFloat(item.price) * parseFloat(item.num);
        }
      });
      return everyStoreMoney.toFixed(2);
    },

    // 計算每個店鋪的運費總額
    calEveryFare : function(index) {
      var everyStoreFare = 0,
        list = this.goodsObj[index]['list'];
      list.forEach(function(item, index, arr) {
        if ( list[index]['checked'] ) { 
          everyStoreFare += parseFloat(item.fare) * parseFloat(item.num);
        }
      });
      return everyStoreFare.toFixed(2);
    },

    // 計算商品總金額
    calTotalMoney : function () {
      var oThis = this;
      this.totalMoney = 0;
      for ( var i = 0, len = this.goodsObj.length; i < len; i++ ) {
        var list = this.goodsObj[i]['list'];
        list.forEach(function(item, index, arr) {
          if ( list[index]['checked'] ) {
            oThis.totalMoney += parseFloat(item.price) * parseFloat(item.num);
          }
        });
      }
    },

    // 計算商品總運費
    calTotalFare : function () {
      var oThis = this;
      this.totalFare = 0;
      for ( var i = 0, len = this.goodsObj.length; i < len; i++ ) {
        var list = this.goodsObj[i]['list'];
        list.forEach(function(item, index, arr) {
          if ( list[index]['checked'] ) {
            oThis.totalFare += parseFloat(item.fare) * parseFloat(item.num);
          }
        });
      }
    },

    // 計算方法集合
    cal : function(index) {
      this.calEveryStore(index);
      this.calEveryFare(index);
      this.calTotalMoney();
      this.calTotalFare();
    },

    // 刪除操作
    delGoods : function(index1, index) {
      console.log(index1);
      console.log(index);
      this.goodsObj[index1]['list'].splice(index, 1);
      this.cal(index);
    }
    
  }
})
</script>
</body>
</html>

效果如下：

以上就是本文的全部內容，希望對大家的學習有所幫助，也希望大家多多支持腳本之家。

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