如果從程式的風格來說，大概有幾個面向
- imperative programming
- functional programming
- objective programming
- logical programming
一開始，大概都是從 imperative programming 入門
然後在轉而接觸其他的面向，如果可以的話，四種都接觸看看
會提到這四種程式的風格，也不是我自己說的
可以參考 Tom Christiansen 的談話
A programmer who hasn't been exposed to all four of the
imperative, functional, objective, and logical programming
styles has one or more conceptual blindspots. It's like
knowing how to boil but not fry.
Programming is not a skill one develops in five easy lessons.