initData（）中walk（）里mkdir（）改为mkdirSync（）;待观察。
Merge branch 'data2' of ssh://github.com/IbpTeam/demo-rio into data2_xiquan
Merge pull request #242 from shuanzi/data2_xiquan

Data2_xiquan->wangfeng
Merge branch 'data2' of ssh://github.com/IbpTeam/demo-rio into data2
Fix write DB fail when multi files