init
Signed-off-by:yi <yi@andyzh-PC>
Merge origin/master

Conflicts:
	doc/e1.html
	doc/e4-1.html

Signed-off-by:yi <yi@andyzh-PC>
Merge origin/master

Conflicts:
	doc/e1.html
	doc/e4-1.html
Signed-off-by:yi <yi@andyzh-PC>