修复bug3534

pages/coupon/components/RulesModal.vue

@@ -40,7 +40,7 @@
       <view class="rules-content">
         <view class="rules-item">
           <text class="rules-label">有效期</text>
-          <text class="rules-value">{{ couponData?.specifiedDay ?? '' }}</text>
+          <text class="rules-value">{{ (couponData?.specifiedDay != null && couponData?.specifiedDay !== '') ? (couponData.specifiedDay + '天') : (couponData?.specifiedDay ?? '') }}</text>
         </view>
         
         <view class="rules-item">