写法一：

aaa | bbb | ccc
----|------|----
ddd | eee  | fff
ggg | hhh  | iii
jjj | kkk  | lll

aaa	bbb	ccc
ddd	eee	fff
ggg	hhh	iii
jjj	kkk	lll

---

写法二：

| #        | 浏览器           | Node  |
| ------------- |:-------------:| -----:|
| I/O      | ✅ | ✅ |
| setTimeout   | ✅   | ✅ |
| setInterval | ✅     |    ✅ |
| setImmediate | ❌     |    ✅ |
| requestAnimationFrame | ✅     |    ❌ |

#	浏览器	Node
I/O	✅	✅
setTimeout	✅	✅
setInterval	✅	✅
setImmediate	❌	✅
requestAnimationFrame	✅	❌