tree 5be70615910458c518f22dd076ffdb8fa4c5bf49
parent 747fa6e439643eb951a97a702c12ac7f62970d23
author zonghaishang <yiji@apache.org> 1589531735 +0800
committer zonghaishang <yiji@apache.org> 1589531735 +0800

optimize codes.