手常常不自觉的按下 facebook, 然后时间就被抓走
也因此，想找一个方式来封锁这个网站，增加效率
似乎 safari 没有办法设定？（若有，可能我没找到）
但是找到了这个小软件
http://selfcontrolapp.com
安装后，可输入网址、封锁时间长短
给各位需要自我控制的人参考。也许有更好的方式也说不一定。
[使用心得]
1. 输入 ptt.cc , 连批踢踢都会被封锁
2. 设定时间内“无法关闭软件”，换句话说，你无法借由关闭小软件来上封锁网站
（也因此刚刚等了一阵子，才可以编辑心得）
3. 他的 Q-A 很有趣，有兴趣的人可以看看
Q: Are you planning on making a Windows, Linux, or iOS version?
No. But the source code is free and others have.
Try these for Windows:
SelfRestraint - GPL and based on SelfControl
Cold Turkey that a nice guy made and seems to work.
There's also a Linux version:
SelfControl for Linux
iOS is too restricted and the App Store does not allow GPL code -
get mad at them. But if you ask nice and pay him well Simon
Remiszewski might build you one of these.
Q: How do I block a website?
To block Facebook, you would add facebook.com to your block list.
Sometimes websites have different domains for different functions,
and you may need to block all of them to get it working fully.
Q: Are there any other instructions?
Choose Help