完善商品详情加入购物车逻辑

@@ -58,9 +58,10 @@ function render(data) {
     '        <button id="chose-btn-sure" class="btn btn-sure"></button>' +
     '    </div>' +
     '</div>';
-    $('.chose-panel').addClass('data-bind').html(htmlTemplate).append('<input id="promotionId" type="hidden" value="">').append('<input id="single" type="hidden" value="">');
+    
     $('#promotionId').remove();
     $('#single').remove();
+    $('.chose-panel').addClass('data-bind').html(htmlTemplate).append('<input id="promotionId" type="hidden" value="">').append('<input id="single" type="hidden" value="">');
 
     if (data.cartInfo) {
         $chosePanel.removeClass(dbClass);