> For the complete documentation index, see [llms.txt](https://m0uk4.gitbook.io/notebooks/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://m0uk4.gitbook.io/notebooks/mouka/python/python-tricks/get-fang-fa-fang-wen-zi-dian.md).

# get()方法访问字典

{% hint style="info" %}
**get(keyword, default\_arg)**
{% endhint %}

```python
name_for_userid = {
    382: "Alice",
    590: "Bob",
    951: "Dilbert",
}

def greeting(userid):
    return "Hi %s!" % name_for_userid.get(userid, "there")

>>> greeting(382)    # 访问 key 382 ，返回 value
"Hi Alice!"

>>> greeting(333333) # 访问 key 333333，不存在，使用默认value
"Hi there!"
```