finish it
完成
complete
init checkin
complete
complete
better
better
the best
add some detail
checkin first version
Create test.py

source code
Create output.txt
Merge branch 'master' of github.com:stfairy/length

Conflicts:
	output.txt
Merge branch 'master' of github.com:ChanceDoor/length

Conflicts:
	output.txt
Merge branch 'master' of github.com:zn0315/length

Conflicts:
	output.txt
Merge branch 'master' of github.com:mailgyc/length

Conflicts:
	output.txt
Merge branch 'master' of github.com:zwy1135/length

Conflicts:
	output.txt
fix parse error.
add regards.