圖例

本站常用的圖示與其意義

圖例

圖示	意義
🅿️	protocol
↘️	protocol inherited by child protocol, protocol comformed by type
↖️	child protocol inherits from protocol, type comforms to protocol
🌀	extension
🔸	enum
↩️	return type
🚩	designated initializer
🔒	let variable
🔢	computed property
❇️	override
🎩	generic

畫格子

// files
root
  ├ index
  ├ style
  └ app ──┬ calc
          ├ css
          └ Calculator

// elseif
if ──┬─ case 1
     └─ else if ─┬─ case 2
                 └─ else if ─┬─ case 3
                             └─ else: case 4

// binary tree
    ┌─ then
if ─┥          ┌─ then 
    └─ else if ┥
               └─ else