修改优惠卷不可用提示

share-system/src/main/java/share/system/service/impl/SConsumerCouponServiceImpl.java

@@ -228,9 +228,12 @@ public class SConsumerCouponServiceImpl extends ServiceImpl<SConsumerCouponMappe
                     StringBuffer buf = new StringBuffer("优惠券");
                     for(int index=0;index<weeks.size();index++){
                         buf.append(WeekEnum.getValueByCode(weeks.get(index)));
-                        if(index<weeks.size()-1){
-                            buf.append(",");
+                        if (index < weeks.size()) {
                             buf.append("可用");
+                            //最后一个不加逗号
+                            if (index < weeks.size() - 1) {
+                                buf.append(",");
+                            }
                         }
                     }
                     item.setReason(buf.toString());