使用 assistant 角色

在 Python 中使用 DeepSeek

James Chapman

AI Curriculum Lead, DataCamp

单轮任务

response = client.chat.completions.create(
  model="deepseek-ai/DeepSeek-V4.1-Flash",
  messages=[{"role": "system",
             "content": "You are a Python programming tutor who responds using concise,
                         one-sentence explanations."},
            {"role": "user",
             "content": "What is the difference between mutable and immutable objects?"}]
)

System：控制 assistant 的行为
User：对 assistant 下达指令
Assistant：根据指令作答

提供示例

引导模型走对方向
提供 assistant 消息是更结构化的示例提示方式
示例：Python 编程导师
- 示例用户问答

一只数据科学猫头鹰。

提供示例

response = client.chat.completions.create(
  model="deepseek-ai/DeepSeek-V4.1-Flash",
  messages=[{"role": "system",
             "content": "You are a Python programming tutor who responds using concise,
                         one-sentence explanations."},

            {"role": "user",
             "content": "How do you define a Python list?"},

            {"role": "assistant",
             "content": "Lists are defined by enclosing a comma-separated sequence of
                         objects inside square brackets [ ]."},

            {"role": "user",
             "content": "What is the difference between mutable and immutable objects?"}]
)

返回结果

print(response.choices[0].message.content)

Mutable objects can be changed after creation (like lists), while immutable objects cannot
(like tuples or strings).

试验示例数量

System、assistant、user 的分工

System → 重要的模板格式

Output the information in this format:
name | age | occupation

Assistant → 示例对话

User → 新输入所需的上下文（多为单轮）

Create a job advert for an AI Engineer. Use this job advert as a template:

Job Title: Data Engineer
...

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在 Python 中使用 DeepSeek