重构了一些代码
添加循环检查功能
fix a bug
add commits
add token.py in .gitignore
version 1
Merge branch 'develop'
version 1.0
add exception handling
add some const
Merge pull request #1 from VeryCB/master

@元芳 1.0
Merge pull request #2 from zhuxi0511/master

new 元芳