2 Commits (594054237d74a5e50cb5ca169feec8c88fb5fd99)

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