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Ollama,一个堪称零学习成本的python项目!

  • 2026-06-29 17:20:48
Ollama,一个堪称零学习成本的python项目!

本地部署大模型,最头疼的无非是环境配置和算力开销。Ollama的出现,直接把门槛拉到了“一行命令”的级别。今天咱们就来盘一盘,如何用Python优雅地调教本地AI。

🚀 一、开箱即用:3行代码跑通对话

Ollama最爽的一点,是装完就能用。不用写繁琐的请求头,不用管token鉴权。我们先拉个gemma3模型,试试最简单的问答:

from ollama import chat

response = chat(model='gemma3:1b', messages=[{
'role''user',
'content''请用一句话解释什么是递归',
}])
print(response['message']['content'])

执行结果(AI输出):

函数调用自身来解决问题的编程技巧。

🔄 二、上下文记忆:让AI记住你说过的话

多轮对话的核心在于传递messages列表。把历史记录塞进去,AI就能“记仇”了。我们模拟一个连续问答:

messages = [{'role''user''content''我今年18岁。'}]
chat(model='gemma3:1b', messages=messages)

messages.append({'role''user''content''加5年后我几岁?'})
response = chat(model='gemma3:1b', messages=messages)
print(response['message']['content'])

执行结果(AI输出):

根据您之前提到的18岁,加5年后是23岁。

⚡️ 三、流式输出:告别“转圈圈”的等待

如果是生成大段文案,同步等待会很煎熬。开启stream=True,就能像ChatGPT一样一个字一个字往外蹦,体验感拉满:

from ollama import chat

stream = chat(model='gemma3:1b', messages=[{
'role''user',
'content''写一句欢迎词'
}], stream=True)

for chunk in stream:
print(chunk['message']['content'], end='', flush=True)

执行结果(AI输出):

欢迎来到充满可能的AI世界!

💡 优势对比与避坑指南

相比原生的requests调用接口,Ollama的Python库最大的优势是零学习成本。不用记API地址,不用拼接JSON,代码极其清爽。不过也要注意,它目前更侧重于轻量级调用,如果你需要做复杂的RAG(检索增强生成)或Agent(智能体),建议配合LangChain使用。在树莓派等低配硬件上,llama.cpp的极致优化会比Ollama跑得更快。

✨ 结语

Ollama就像一把趁手的瑞士军刀,把复杂的本地模型推理简化成了几行Python代码。无论是做个人知识库,还是折腾智能家居助手,它都能让你把精力专注在业务逻辑上。大家平时用Ollama搞了什么好玩的项目?欢迎在评论区分享你的脑洞!

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  1. CONNECT:[ UseTime:0.000638s ] mysql:host=127.0.0.1;port=3306;dbname=f_mffb;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000695s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000304s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000344s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000631s ]
  6. SELECT * FROM `set` [ RunTime:0.000223s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000771s ]
  8. SELECT * FROM `article` WHERE `id` = 500150 LIMIT 1 [ RunTime:0.000480s ]
  9. UPDATE `article` SET `lasttime` = 1783006016 WHERE `id` = 500150 [ RunTime:0.020518s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 66 LIMIT 1 [ RunTime:0.000360s ]
  11. SELECT * FROM `article` WHERE `id` < 500150 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.002059s ]
  12. SELECT * FROM `article` WHERE `id` > 500150 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000486s ]
  13. SELECT * FROM `article` WHERE `id` < 500150 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.001251s ]
  14. SELECT * FROM `article` WHERE `id` < 500150 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.004367s ]
  15. SELECT * FROM `article` WHERE `id` < 500150 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.000764s ]
0.105683s