renjiaojiao c7241f5ee0 增加service层 %!s(int64=3) %!d(string=hai) anos
..
knowledgeService.go c7241f5ee0 增加service层 %!s(int64=3) %!d(string=hai) anos
knowledgeService_test.go c7241f5ee0 增加service层 %!s(int64=3) %!d(string=hai) anos