Merge remote-tracking branch 'origin/saas' into saas

mec-biz/src/main/java/com/ym/mec/biz/service/impl/TenantAssetsInfoServiceImpl.java

@@ -156,7 +156,7 @@ public class TenantAssetsInfoServiceImpl extends ServiceImpl<TenantAssetsInfoDao
                 //当前余额
                 BigDecimal balance = assetsInfo.getBalance();
                 //当前余额 减 本次扣费 的剩余额度
-                BigDecimal after = balance.subtract(coursePrice);
+                BigDecimal after = balance.subtract(coursePrice).setScale(2,RoundingMode.HALF_UP);
                 //300
                 BigDecimal threeHundred = new BigDecimal(300);
                 //当前余额大于300 并且 本次扣除后剩余额度小于300 就发信息提醒