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HTML

              
                <!DOCTYPE html>
<html amp lang="zh-TW">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width,minimum-scale=1,initial-scale=1">
<script async src="https://cdn.ampproject.org/v0.js"></script>
    <script async custom-element="amp-font" src="https://cdn.ampproject.org/v0/amp-font-0.1.js"></script>
    <script async custom-element="amp-selector" src="https://cdn.ampproject.org/v0/amp-selector-0.1.js"></script>
    <script async custom-element="amp-bind" src="https://cdn.ampproject.org/v0/amp-bind-0.1.js"></script>


<title>amp-bind測試</title>
<!-- 連回自己 -->
<link rel="canonical" href="amp-product-page">
<!-- font css -->
<link rel="stylesheet" href="https://use.fontawesome.com/releases/v5.6.3/css/all.css" crossorigin="anonymous">
<link href="https://fonts.googleapis.com/icon?family=Material+Icons" rel="stylesheet">
<style amp-custom>
  body{
    padding:16px;
  }


/*顏色區塊*/
  .selector-color{
    
  }
  .selector-color ul{
    margin:0;
    padding:0;
    display:flex;
  }
 .selector-color li{
   padding:0;
   margin:6px;
   list-style-type: none;
   font-size:0;
   width:40px;
   height:40px;
   border:3px solid #eeeeee ;
  }
  .selector-color  [option="1001"]{
    background:#D81B60;
  }
 .selector-color  [option="1002"]{
    background:#FFC107;
  }
 .selector-color  [option="1003"]{
    background:#03A9F4;
  }
 .selector-color  [option="1004"]{
    background:#4CAF50;
  }
  #last_price{
    font-size:32px;
    color:red;
  }
  
  .selector-size ul{
    margin:0;
    padding:0;
    display:flex;
  }
   .selector-size li{
   padding:0;
   margin:6px;
   list-style-type: none;
   text-align:center;
   line-height:40px;
   width:40px;
   height:40px;
   border:3px solid #eeeeee ;
  }

  
</style>
<style amp-boilerplate>body{-webkit-animation:-amp-start 8s steps(1,end) 0s 1 normal both;-moz-animation:-amp-start 8s steps(1,end) 0s 1 normal both;-ms-animation:-amp-start 8s steps(1,end) 0s 1 normal both;animation:-amp-start 8s steps(1,end) 0s 1 normal both}@-webkit-keyframes -amp-start{from{visibility:hidden}to{visibility:visible}}@-moz-keyframes -amp-start{from{visibility:hidden}to{visibility:visible}}@-ms-keyframes -amp-start{from{visibility:hidden}to{visibility:visible}}@-o-keyframes -amp-start{from{visibility:hidden}to{visibility:visible}}@keyframes -amp-start{from{visibility:hidden}to{visibility:visible}}</style><noscript><style amp-boilerplate>body{-webkit-animation:none;-moz-animation:none;-ms-animation:none;animation:none}</style></noscript>
</head>

<body>
 <!-- 幣別+各產品選擇-價錢等於只有一種 -->
  <!-- selectedProducts和selectedCurrency是變數;selectedProducts將會撈取1001-1004其中一項,預設值設定1001;selectedCurrency會撈取TWD-HKD等幣別,因此預設值設TWD -->
  <amp-state id="product">
    <script type="application/json">
    {
      "selectedProducts": "1001",
       "selectedSizes": "S",
      "selectedCurrency": "TWD",
       "defaultPrice":"1690",
       "currency" :{
           "TWD":{
          "icon":"$",  
          "price":"1690"
             },
         "HKD":{
          "icon":"$",  
          "price":"427"
             },
         "USD":{
          "icon":"$",  
          "price":"55"
             },
          "JPY":{
          "icon":"¥",  
          "price":"5300"
             },
         "THB":{
          "icon":"฿",  
          "price":"1700"
             }
        },
      "1001":{
        "color":"紅色",
          "sizes":{
            "S":"S",
            "M":"M",
            "L":"L"
          }
      },
         "1002":{
        "color":"黃色",
          "sizes":{
            "S":"S",
            "M":"M",
            "L":"L"
          }
      },
         "1003":{
        "color":"藍色",
          "sizes":{
            "S":"S",
            "M":"M",
            "L":"L"
          }
      },
         "1004":{
        "color":"綠色",
          "sizes":{
            "S":"S",
            "M":"M",
            "L":"L"
          }
      }
     }
    </script>
    </amp-state>
   <h2>產品標題  <span  [text]="product[product.selectedProducts].color">紅色</span> <span  [text]="product[product.selectedProducts].sizes[product.selectedSizes]">S</span> 
</h2>
  <p id="last_price">
  <span [text]="product.currency[product.selectedCurrency].icon">$</span>
  <span  [text]="product.currency[product.selectedCurrency].price">1690</span> 
  </p>  
<!-- 選幣別-注意使用select時on="change..." event接續的是value -->
<select on="change:AMP.setState({ product: {selectedCurrency: event.value }})">

  <option value="TWD">台幣</option>
  <option value="HKD">港幣</option>
  <option value="USD">美元</option>
  <option value="JPY">日幣</option>
  <option value="THB">泰銖</option>
</select>  
  
<!-- 選顏色-->
<amp-selector name="color" class="selector-color" layout="container"
          on="select:AMP.setState({ product: {selectedProducts: event.targetOption}})"
         [selected]="product.selectedProducts.color">
          <ul>
            <li option="1001">紅色</li>
            <li option="1002">黃色</li>
            <li option="1003">藍色</li>
            <li option="1004">綠色</li>
          </ul>
        </amp-selector>
<!-- 選尺寸  尺寸仍然要給一個變數selectedSizes,仿造顏色的方式下去寫-->
<amp-selector name="color" class="selector-size" layout="container"
          on="select:AMP.setState({ product: {selectedSizes: event.targetOption}})"
         [selected]="product.selectedSizes.sizes">
          <ul >
            <li option="S">S</li>
            <li option="M">M</li>
            <li option="L">L</li>
          </ul>
        </amp-selector>
              
            
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