tree 621f8338475e65c6b3de33ed282be241b93bf7f7
parent cc92526976dfa692eb1124f901d55ceb27b51fa5
author ken.lj <ken.lj.hz@gmail.com> 1585295419 +0800
committer ken.lj <ken.lj.hz@gmail.com> 1585295419 +0800

check if read.