fix some error
Data#40_wangbo:merge
Merge branch 'Data' of github.com:IbpTeam/demo-rio into Data#40_wangbo
Data#40_wangbo:add hashtable lib
Data#40_wangbo add some database table functions
Merge pull request #67 from rtty122333/Data#40_wangbo

Data#40 wangbo->xiquan