> ## Documentation Index
> Fetch the complete documentation index at: https://docs.aftersell.com/llms.txt
> Use this file to discover all available pages before exploring further.

# 在 checkout 按钮上方添加最终总计行

> 在 checkout 按钮上方的一个汇总区域中显示小计、固定运费和总计。

<div id="overview">
  # 概述
</div>

此定制会在 checkout 按钮上方添加清晰的费用明细，基于固定运费费率显示小计、运费和总计。

它帮助客户在 checkout 之前了解最终金额，从而提升信任并减少犹豫。

\*\*重要提示：\*\*此方法仅适用于固定运费费率。如果你的商店使用动态运费，结果可能不准确。

***

<div id="if-you-are-on-upcart-v10">
  ## 如果你使用的是 Upcart V1.0
</div>

<div id="step-1-add-custom-html">
  #### 第 1 步：添加自定义 HTML
</div>

1. 前往 **Upcart > Cart Editor > Settings > Custom HTML**
2. 在 **Select HTML Location** 下拉菜单中，选择 **Above checkout button**
3. 粘贴以下代码，并更新变量以反映你商店的运费和门槛：

```
<hr>  
  
<div class="cartSummarySection">  
  <div class="cartSummarySubtotal alignLeft">  
    Subtotal:  
    <span class="alignRight subtotalprice">{{UPCART_SUBTOTAL}}</span>  
  </div>  
  
  <div class="cartSummaryShipping alignLeft">  
    Shipping:  
    <span class="alignRight upcartShipping"></span>  
  </div>  
  
  <div class="cartSummaryEndTotal alignLeft">  
    Total:  
    <span class="alignRight upcartEndTotal"></span>  
  </div>  
  
  <div style="clear: both; display: flex;"></div>  
</div>  
  
<script>  
  var shippingThreshold = 15000; // In cents  
  var shippingCostWhenUnderThreshold = 290; // In cents  
  var textWhenUnderShippingThreshold = "$2.90";  
  var textWhenOverShippingThreshold = "FREE";  
  var currencySymbolToAddInfrontOfEndPrice = "$";  
  var shouldCurrencySymbolBeOnLeftSide = true;  
  
  window.upcartSubscribeCartLoaded((event) => {  
    var shippingText = window.upcartDocumentOrShadowRoot.querySelector(".upcartShipping");  
    var endTotal = window.upcartDocumentOrShadowRoot.querySelector(".upcartEndTotal");  
  
    if (event.cart.total < shippingThreshold) {  
      shippingText.innerText = textWhenUnderShippingThreshold;  
  
      if (shouldCurrencySymbolBeOnLeftSide) {  
        endTotal.innerText =  
          currencySymbolToAddInfrontOfEndPrice +  
          ((event.cart.total + shippingCostWhenUnderThreshold) / 100).toFixed(2);  
      } else {  
        endTotal.innerText =  
          ((event.cart.total + shippingCostWhenUnderThreshold) / 100).toFixed(2) +  
          currencySymbolToAddInfrontOfEndPrice;  
      }  
  
    } else {  
      shippingText.innerText = textWhenOverShippingThreshold;  
  
      if (shouldCurrencySymbolBeOnLeftSide) {  
        endTotal.innerText =  
          currencySymbolToAddInfrontOfEndPrice +  
          (event.cart.total / 100).toFixed(2);  
      } else {  
        endTotal.innerText =  
          (event.cart.total / 100).toFixed(2) +  
          currencySymbolToAddInfrontOfEndPrice;  
      }  
    }  
  });  
</script>
```

<Note>
  **旧版说明：**`window.upcartOnCartLoaded` 回调仍然可用，但已弃用并会在控制台记录警告。所有新脚本请使用 `upcartSubscribeCartLoaded`。
</Note>

<div id="step-2-add-custom-css">
  #### 第 2 步：添加自定义 CSS
</div>

1. 前往 **Upcart > Cart Editor > Settings > Custom CSS**
2. 粘贴以下 CSS，并调整 `background-color` 或其他样式以匹配你的购物车底部区域：

```
.upcart-footer {  
  padding-top: 0px !important;  
}  
  
.cartSummarySection {  
  background-color: #f6f4ef !important;  
  padding: 10px 23px;  
}  
  
.cartSummarySubtotal,  
.cartSummaryShipping,  
.cartSummaryEndTotal {  
  color: black;  
  width: 100%;  
  text-align: left;  
  font-weight: normal;  
  font-size: 16px;  
  padding: 0;  
}  
  
#CartPopup hr {  
  margin: 0px !important;  
}  
  
.alignLeft {  
  float: left;  
}  
  
.alignRight {  
  float: right;  
}
```

<div id="final-result">
  ## 最终效果
</div>

应用后：

* checkout 按钮上方会显示费用明细
* 客户可以看到小计、运费（固定金额或 FREE）和总计
* 运费会根据你的门槛动态调整

这提高了费用透明度、提升了信任，并有助于减少 checkout 弃单。

***

<div id="if-you-are-on-upcart-v20">
  ## 如果你使用的是 Upcart V2.0
</div>

<div id="step-1-go-to-cart-summary-module">
  #### 第 1 步：前往购物车汇总模块
</div>

1. 首先启用自定义模板：在 **Upcart > Cart Editor > Settings > Cart settings** 中，展开 **Advanced Settings** 并勾选 **Access custom templates**。该设置默认关闭，在开启之前，Cart summary 标签页只会显示"Custom templates aren't enabled"消息，而没有编辑器。
2. 前往 **Upcart > Cart Editor > Cart summary > Custom template**
3. 粘贴以下代码：

   1. 该区域的自定义代码位于第 52 行到第 73 行

      ```
      <div>  
        <div className="upcart-internal-cart-summary upcart-public-cart-summary">  
          <div className="upcart-internal-cart-summary__discount-codes upcart-public-cart-summary__discount-codes">  
            <span className="upcart-internal-cart-summary__discount-label upcart-public-cart-summary__discount-label">  
              {props.totalSavingsText}  
            </span>  
        
            <div className="upcart-internal-cart-summary__slide-codes upcart-public-cart-summary__slide-codes">  
              {props.discountApplications.map((discountApplication) => (  
                <span  
                  key={discountApplication.key}  
                  className="upcart-internal-component-tag upcart-public-component-tag"  
                >  
                  <span className="upcart-internal-component-tag__icon upcart-public-component-tag__icon">  
                    <svg  
                      xmlns="http://www.w3.org/2000/svg"  
                      viewBox="0 0 20 20"  
                      focusable="false"  
                    >  
                      <title>Discount tag icon</title>  
                      <path  
                        fillRule="evenodd"  
                        d="M8.575 4.649a3.75 3.75 0 0 1 2.7-1.149h1.975a3.25 3.25 0 0 1 3.25 3.25v2.187a3.25 3.25 0 0 1-.996 2.34l-4.747 4.572a2.5 2.5 0 0 1-3.502-.033l-2.898-2.898a2.75 2.75 0 0 1-.036-3.852l4.254-4.417Zm4.425 3.351a1 1 0 1 0 0-2 1 1 0 0 0 0 2Z"  
                      />  
                    </svg>  
                  </span>  
        
                  <span className="upcart-internal-component-tag__text upcart-public-component-tag__text">  
                    {discountApplication.title}  
                  </span>  
        
                  {discountApplication.type === "discount_code" && (  
                    <button  
                      type="button"  
                      className="upcart-internal-component-tag__remove-button upcart-public-component-tag__remove-button"  
                      onClick={props.handleRemoveDiscount}  
                      aria-label="Remove tag"  
                    >  
                      {props.isRemovingDiscount ? (  
                        <div className="upcart-internal-component-loader upcart-public-component-loader" />  
                      ) : (  
                        <svg  
                          xmlns="http://www.w3.org/2000/svg"  
                          viewBox="0 0 20 20"  
                        >  
                          <path d="M12.72 13.78a.75.75 0 1 0 1.06-1.06l-2.72-2.72 2.72-2.72a.75.75 0 0 0-1.06-1.06l-2.72 2.72-2.72-2.72a.75.75 0 0 0-1.06 1.06l2.72 2.72-2.72 2.72a.75.75 0 1 0 1.06 1.06l2.72-2.72 2.72 2.72Z" />  
                        </svg>  
                      )}  
                    </button>  
                  )}  
                </span>  
              ))}  
            </div>  
          </div>  
        
          <div>  
            {props.showCartTotalDiscount && (  
              <span  
                className="upcart-internal-cart-summary__total-discount upcart-public-cart-summary__total-discount"  
                dangerouslySetInnerHTML={{  
                  __html: props.formattedCartTotalDiscount,  
                }}  
              />  
            )}  
          </div>  
        </div>  
        
        {/* Custom code for summary section */}  
        <hr />  
        
        <div className="upcart-custom-cart-summary__container">  
          <div className="upcart-custom-cart-summary__row upcart-custom-cart-summary__subtotal">  
            Subtotal:  
            <span className="upcart-custom-cart-summary__subtotal-value">  
              ${(props.totalAfterAllDiscounts / 100).toFixed(2)}  
            </span>  
          </div>  
        
          <div className="upcart-custom-cart-summary__row upcart-custom-cart-summary__shipping">  
            Shipping:  
            <span className="upcart-custom-cart-summary__shipping-value">  
              $2.99  
            </span>  
          </div>  
        
          <div className="upcart-custom-cart-summary__row upcart-custom-cart-summary__cart-total">  
            Total:  
            <span className="upcart-custom-cart-summary__cart-total-value">  
              {/* totalAfterAllDiscounts excludes shipping — add the same 299 cents shown above. */}  
              ${((props.totalAfterAllDiscounts + 299) / 100).toFixed(2)}  
            </span>  
          </div>  
        </div>  
      </div>
      ```

      b. 相关部分是第 52 - 73 行的这一段，请参考[这篇文档](/zh/upcart/setting_up_a_custom_template_in_upcart#available-props-full-template)来决定你计划在屏幕上显示什么值

      ```
        <hr />  
        
        <div className="upcart-custom-cart-summary__container">  
          <div className="upcart-custom-cart-summary__row upcart-custom-cart-summary__subtotal">  
            Subtotal:  
            <span className="upcart-custom-cart-summary__subtotal-value">  
              ${(props.totalAfterAllDiscounts / 100).toFixed(2)}  
            </span>  
          </div>  
        
          <div className="upcart-custom-cart-summary__row upcart-custom-cart-summary__shipping">  
            Shipping:  
            <span className="upcart-custom-cart-summary__shipping-value">  
              $2.99  
            </span>  
          </div>  
        
          <div className="upcart-custom-cart-summary__row upcart-custom-cart-summary__cart-total">  
            Total:  
            <span className="upcart-custom-cart-summary__cart-total-value">  
              {/* totalAfterAllDiscounts excludes shipping — add the same 299 cents shown above. */}  
              ${((props.totalAfterAllDiscounts + 299) / 100).toFixed(2)}  
            </span>  
          </div>  
        </div>
      ```

      c. 前往 \*\*Upcart > Cart Editor > Settings > Custom CSS，\*\*添加以下内容：

      ```
      .upcart-custom-cart-summary__row {  
        display: flex;  
        flex-direction: row;  
        justify-content: space-between;  
      }
      ```

***

<div id="need-help">
  ## 需要帮助？
</div>

如果你想将此方案改造为支持多个运费门槛或更高级的逻辑，我们建议与 **Shopify 专家**合作。Upcart 的支持团队不提供实现或调试自定义代码方面的协助。