Merge pull request #10 from yezhejack/master

修复一个可能引起系统崩溃的bug
Revert "修复一个可能引起系统崩溃的bug"
Merge pull request #11 from f1ne/revert-10-master

Revert "修复一个可能引起系统崩溃的bug"  一些代码没有改好
Merge pull request #12 from yezhejack/master

fix bugs 重新提交
change some settings

change some settings
changes

changes
upload again