补交第一周:coding net
coding net:https://coding.net/u/yuanyuancheng
git openssh:
四则运算 https://git.coding.net/yuanyuancheng/sizeyunsuan.git
ssh:git@git.coding.net:yuanyuancheng/sizeyunsuan.git
词频统计 https://git.coding.net/yuanyuancheng/cipintongji.git
ssh:git@git.coding.net:yuanyuancheng/cipintongji.git