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
fix sql error
Merge pull request #69 from rtty122333/Data#40_wangbo

fix sql error->jianmin
uploadenhance-wangyu: skip upload files with unknown postfix and will not stay waiting forever
Merge pull request #70 from wangyufish/uploadEnhance-wangyu

uploadenhance-wangyu: skip upload files with unknown postfix->wangfeng
Data#40_yuanzhe:add internet discovery test page