YOHO 币使用优化

@@ -106,8 +106,12 @@ function orderCompute() {
             if (res.last_order_amount) {
                 res.last_order_amount = (+res.last_order_amount).toFixed(2);
             }
+            if (res.use_yoho_coin) {
                 $coinCheck.find('em').html('- ¥ ' + res.use_yoho_coin);
                 $coinUsed.html('已抵¥' + res.use_yoho_coin);
+                $coinCheck.find('em').show();
+                $coinUsed.show();
+            }
             priceHtml = priceTmpl({
                 cartPayData: res.promotion_formula_list,
                 price: res.last_order_amount
@@ -215,9 +219,7 @@ $('.coin').on('touchend', function() {
 
     if ($this.find('.checkbox').hasClass('icon-cb-checked')) {
         orderInfo('yohoCoin', $this.data('yoho-coin'));
-        $this.find('.coin-check em').show();
         $this.find('.can-use').hide();
-        $this.find('.used').show();
     } else {
         orderInfo('yohoCoin', 0);
         $this.find('.coin-check em').hide();