手常常不自覺的按下 facebook, 然後時間就被抓走
也因此，想找一個方式來封鎖這個網站，增加效率
似乎 safari 沒有辦法設定？（若有，可能我沒找到）
但是找到了這個小軟體
http://selfcontrolapp.com
安裝後，可輸入網址、封鎖時間長短
給各位需要自我控制的人參考。也許有更好的方式也說不一定。
[使用心得]
1. 輸入 ptt.cc , 連批踢踢都會被封鎖
2. 設定時間內「無法關閉軟體」，換句話說，你無法藉由關閉小軟體來上封鎖網站
（也因此剛剛等了一陣子，才可以編輯心得）
3. 他的 Q-A 很有趣，有興趣的人可以看看
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