resvers.py

## 翻转列表内的元素

用到`list`的`[pop](https://docs.python.org/3.5/tutorial/datastructures.html)`和`append`方法。

```python
# -*- coding: utf -8 -*-

from random import randrange

def revers(seq, L=None):
 while seq:
 if L is None:
 L = []
 L.append(seq.pop())
 return L

if __name__ == "__main__":
 lst = [randrange(100) for _ in range(10)]
 print('This is original list\n', lst)
 print('This is reversed list\n', revers(lst))
```