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

xiaoyong931011

2021-05-28 c5a4ae0c6cfb20e2e9e601017e02b94617ed1210

 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);
}