【后端总结】PHP基础

【后端总结】PHP基础 在 2018/11/13 19:54:57 发布于 编程实践 分类

大部分得语言内容都静静得躺在语言手册中,如果复述一遍,一方面未必又手册描述得清晰,另一方面也是有悖总结知名。而且基础类的文章这么写法,常常会陷入种种细节的窠臼。所以这篇文章写写珊珊总是落不成笔。

所谓经典就是不管看几遍总是能够有所收获。翻看SICP的时候,开篇对于编程语言元素的总结简明扼要又醍醐灌顶

The Elements of Programming

  1. primitive expressions, which represent the simplest entities the language is concerned with,
  2. means of combination, by which compound elements are built from simpler ones, and
  3. means of abstraction, by which compound elements can be named and manipulated as units.

primitive expressions