Update AppPay.cshtml

samples/NewWebApplicationSample/Views/Alipay/AppPay.cshtml

@@ -25,6 +25,10 @@
                 <label asp-for="Body"></label>
                 <input type="text" class="form-control" asp-for="Body" value="APP支付描述信息" />
             </div>
+            <div class="form-group">
+                <label asp-for="ProductCode"></label>
+                <input type="text" class="form-control" asp-for="ProductCode" />
+            </div>
             <div class="form-group">
                 <label asp-for="TotalAmount"></label>
                 <input type="text" class="form-control" asp-for="TotalAmount" value="0.01" />