[按空格播放]
2018
《把时间当作朋友》,李笑来
阿琴:你叫咩名啊?
凌凌漆:我叫凌凌漆。可以問啲深啲嘅。
阿琴:深啲啊?有個農場,雞嘅數目就系鴨嘅4倍,噉呢鴨呢就比豬少9隻,噉鴨加埋豬嘅總和就系67,噉請問成個農場啲動物加埋有幾隻腳?
head [c*2+d*2+p*4 | p<-[0..], let c=d*4, let d=p-9, d+p==67]
Object Oriented
Functional
Ruby
Clojure
Erlang
Haskell
Scala
Prototype
based
Io
Logic
Prolog
TO LEARN
A Pebble app that reminds you to rest.
If you can perform extra writes to improve the efficiency of your read queries, it’s almost always a good tradeoff.
In order to get the most efficient reads, you often need to duplicate data. Don't be afraid of it.
are not made by PowerPoint