书生大模型实战营闯关任务 Python实现wordcount

# Python task

### 任务一

请实现一个wordcount函数，统计英文字符串中每个单词出现的次数。返回一个字典，key为单词，value为对应单词出现的次数。

Eg:

Input:

```python
"""Hello world!  
This is an example.  
Word count is fun.  
Is it fun to count words?  
Yes, it is fun!"""
```

Output:

```python
{'hello': 1,'world!': 1,'this': 1,'is': 3,'an': 1,'example': 1,'word': 1, 
'count': 2,'fun': 1,'Is': 1,'it': 2,'to': 1,'words': 1,'Yes': 1,'fun': 1  }
```

TIPS：记得先去掉标点符号,然后把每个单词转换成小写。不需要考虑特别多的标点符号，只需要考虑实例输入中存在的就可以。

```python
text = """
Got this panda plush toy for my daughter's birthday,
who loves it and takes it everywhere. It's soft and
supe