delete
new function
fixbug
rm file
rm files
add file
Merge branch 'master' of github.com:Hao8816/single_app
fix null bug
new func
Merge branch 'master' of github.com:Hao8816/single_app

Conflicts:
	single_spider/JD_spider.js
image download
add module
add moudles
add moudle
fix bug
fix bug
fix bug
fix bug
fix file
fix bug