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# System prepended metadata

title: 0328

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# 0328
```
想三個字典如何運用例子 
```
## 字典

![](https://i.imgur.com/3lFpnXk.jpg)


#### List 
is a collection which is ordered and changeable. Allows duplicate members.
#### Tuple 
is a collection which is ordered and unchangeable. Allows duplicate members.
#### Set 
is a collection which is unordered, unchangeable*, and unindexed. No duplicate members.
#### Dictionary 
is a collection which is ordered** and changeable. No duplicate members.

## 作業：
* 用迴圈找出"麥禮仁"的學號
* 用迴圈找出所有"陳"姓同學的學號與姓名
* 全班同學有那幾個姓氏？同學姓名是否有重複的？
* 找出所有的姓氏 set