Merge branch 'yunding' of http://120.27.238.55:7000/r/exchange into yunding

xiaoyong931011

2021-05-12 a65df41c3243877352fe6822b65c1836ddc3c19d

 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);
}