size,isEmpty,get,add,remove
fix bugs of remove()
修改了文件目录
抽象出了checkSize方法
发现remove忘记返回值了...
Merge branch 'master' of https://github.com/ds-sww/codebase into Assignment3
add Assignment 3
init
BF and KR
update author
BF & KR
Merge pull request #184 from qzane/master

13307130226_ZhangQian_Assignment3[Initial Commit]