20210304 最大持仓数设置0时，显示为空

xiaoyong931011

2021-03-04 6444e8ab5afb8cfeba903a857908ea4d5aaf3d9d

 src/main/java/com/xcong/excoin/modules/contract/service/ContractHoldOrderService.java

@@ -47,5 +47,6 @@
    public void calHoldOrderHoldFeeAmount();

    public Result changePositionType();
    public void calHoldFeeAmountForBondAmount();

}