assignment0 commit by 13307130192(Chen Aidao)
assignment1,2
sync to master
 writing testcase disability
finished BF KR KMP
assignment1 completed
Merge pull request #2 from ds-sww/master

Update commits Assignment 3
clear
Initial Commit
rebase
Merge branch 'master' of http://github.com/ds-sww/codebase into assignment3
Merge branch 'assignment3' of https://github.com/LyqSpace/codebase into assignment3
Deleted assignment1.
Everything EXCEPT BMImpl
Revert "init"

This reverts commit 982f2ad34a46c17dcf4b6275699bdb8560ff7e88.
Finish simplified automata by myself.
Supplement the destructor & improve code style in KMPImpl.cpp
Merge branch 'master' of https://github.com/wanyimu/codebase into assignment3
assignment2
asdfsalkdf;as