删除如下文件：（可以继续试用30天）

~/Library/Preferences/com.ittybittyapps.Reveal.plist

Resource Reference

• http://www.bubuko.com/infodetail-598732.html
• http://blog.csdn.net/baodongsheng2011/article/details/46057503
• http://revealapp.com/download/