观察:
---
# 一位职工记录
name: Example Developer
job: Developer
skill: Elite
employed: True
foods:
- Apple
- Orange
- Strawberry
- Mango
languages:
ruby: Elite
python: Elite
dotnet: Lame
与
name: Example Developer
job: Developer
skill: Elite
employed: True
foods:
- Apple
- Orange
- Strawberry
- Mango
languages:
- ruby: Elite
- python: Elite
- dotnet: Lame
例1:
目的是表示: languages 的 唯一的属性集合。
例子:
目的是表示: languages的 可重复的元素实体单数的集合。