2 Commits (bb9400b945b8fdc91e57f818f2ea115bcb322a57)

Author	SHA1	Message	Date
FengJungle	28da931795	add Singleton Pattern	2019-10-20 18:58:33 +08:00
FengJungle	2e0045a1b2	add Singleton Pattern	2019-10-20 18:50:12 +08:00