add trader closing order

Helius

2020-08-04 ea8eb9c441bb4452d153579b456467b2f5e958e4

 src/main/java/com/xcong/excoin/common/system/service/CommonService.java

@@ -8,4 +8,5 @@

    public boolean verifyCode(String account, String code);

    public String generateOrderNo(Long mid);
}