算法改变
pep8
Merge pull request #5 from xiguazao/s_url

copy按钮的实现
Merge pull request #6 from xiguazao/s_url

localhost修改
Merge pull request #7 from xiguazao/s_url

分享修改
Merge pull request #8 from cpyou/sha1

算法改变
index2.0 相同url 历史记录