Ji Yongfeng@StevemProduct ManagerFollow BadgesPythonDays of Code CertificationsCertificate: Python (Basic)VerifiedskillWork ExperienceStevem has not updated employment details yet.EducationStevem has not updated education details yet.LinksGithubhttps://github.com/jiyongfeng SkillsStevem has not updated skills details yet.