高效提示词设计技术
深入学习编写清晰、简洁且有效的提示词的策略，使 LLM 生成所需的响应
高效提示词设计技术 是 CoddyKit 上的免费 AI Agents with LangChain & Autonomous Workflows 课时。 这是第 1 节课，共 4 节。 你可以在下方免费阅读本课时的完整内容 — 然后在浏览器中使用内置代码编辑器和全天候 AI 导师进行实践。 这是 AI Agents with LangChain & Autonomous Workflows 学习路径的一部分，你的进度在网页和 CoddyKit 应用中同步。 AI Agents with LangChain & Autonomous Workflows 课程共包含 4 节课。
本课时的部分内容尚未翻译，以英文显示。
Guiding LLMs with Prompts
Welcome to Prompt Engineering! This lesson explores how to craft effective instructions, called prompts, to get the best responses from Large Language Models (LLMs).
Think of it as learning to speak the LLM's language. A well-designed prompt is key to unlocking powerful AI capabilities.
Be Clear, Be Specific
The first rule of prompt engineering is to be clear and specific. Vague instructions lead to vague or irrelevant answers. Tell the LLM exactly what you want.
- Avoid ambiguity.
- Use precise language.
- Specify constraints (e.g., length, format).
Specificity in Action
See how a precise prompt yields a much better, structured result compared to a vague one. The LLM needs clear guidance!
def get_llm_response(prompt):
if "3 bullet points" in prompt and "main benefits" in prompt:
return "1. Automates tasks.\n2. Boosts creativity.\n3. Improves decision-making."
elif "summarize" in prompt:
return "Here is a summary of the article."
return "I'm not sure what to do."
print("--- Vague Prompt ---")
vague_prompt = "Summarize the article about AI."
print("Prompt:", vague_prompt)
print("Response:", get_llm_response(vague_prompt))
print("\n--- Specific Prompt ---")
specific_prompt = "Summarize the article about AI in 3 concise bullet points, highlighting its main benefits."
print("Prompt:", specific_prompt)
print("Response:", get_llm_response(specific_prompt))Give Your LLM a Role
Assigning a persona or role to the LLM can significantly influence its tone, style, and content. This helps the LLM adopt a specific perspective.
For example, asking it to "Act as a financial advisor" will result in a different response than "Act as a comedian."
Role-Playing Example
Observe how setting a role changes the LLM's output. The role provides essential context for generating appropriate responses.
def get_llm_response_with_role(role, query):
if "pirate" in role:
return f"Ahoy there! {query}, ye say? Here be the answer, matey! Arr!"
elif "chef" in role:
return f"Bonjour! As a chef, I can tell you about {query} with a culinary twist!"
return f"Hello! Here's the answer to your query: {query}"
print("--- Standard Query ---")
print("Response:", get_llm_response_with_role("", "Tell me about gold."))
print("\n--- Pirate Role Query ---")
print("Response:", get_llm_response_with_role("You are a pirate captain.", "Tell me about gold."))
print("\n--- Chef Role Query ---")
print("Response:", get_llm_response_with_role("You are a Michelin star chef.", "Tell me about gold."))Zero-Shot vs. Few-Shot
Zero-Shot Prompting: You give the LLM a task without any examples. It relies on its pre-trained knowledge.
Few-Shot Prompting: You provide a few input-output examples to guide the LLM on the desired format or pattern before asking for the main task. This is great for teaching specific styles.
Few-Shot Prompting in Action
Few-shot prompting helps the LLM understand a pattern or desired output format by showing it examples. Notice how the examples define the classification task.
# Few-Shot Prompt Structure Example
print("--- Few-Shot Example Prompt ---")
prompt_template = """
Classify the following items into 'Fruit' or 'Vegetable':
apple -> Fruit
carrot -> Vegetable
banana -> Fruit
Now classify these:
potato ->
tomato ->
"""
print(prompt_template)
print("\nThis prompt provides examples (apple, carrot, banana) to teach the LLM the classification pattern. It helps the LLM correctly classify 'potato' and 'tomato'.")Structure Your Output
If you need the LLM's response in a specific structure, explicitly ask for it. This is crucial for integrating LLM outputs into other systems.
- JSON:
"Return as JSON with 'name' and 'age' keys." - Lists:
"Provide 5 bullet points." - Tables:
"Format as a Markdown table."
Iterate and Refine
Prompt engineering is an iterative process. Your first prompt might not be perfect. Always test, evaluate, and refine!
- Test with various inputs.
- Analyze unexpected or incorrect results.
- Adjust instructions, add examples, or change the role.
Small tweaks can lead to significant improvements.
Crafting Better Prompts
You want an LLM to generate a recipe for a specific cuisine. Which techniques would be most useful to ensure a good, clear recipe?
Recap: Effective Prompting
You've learned core techniques for effective prompt design!
- Clarity & Specificity: Be precise in your instructions.
- Role-Playing: Assign a persona to guide the LLM's tone.
- Few-Shot: Provide examples to teach patterns.
- Output Formatting: Specify how you want the answer structured.
- Iteration: Test and refine your prompts continuously.
Keep practicing these techniques to master guiding LLMs!
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常见问题解答
「高效提示词设计技术」课时是免费的吗？
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「高效提示词设计技术」这节课中我会学到什么？
深入学习编写清晰、简洁且有效的提示词的策略，使 LLM 生成所需的响应 你通过在浏览器中直接运行的动手代码来练习 AI Agents with LangChain & Autonomous Workflows，全天候 AI 导师会在你学习这节课的过程中回答你的问题。
学习 AI Agents with LangChain & Autonomous Workflows 需要有经验吗？
无需任何先前经验。CoddyKit 上的 AI Agents with LangChain & Autonomous Workflows 课程适合初学者到高级学习者，你可以从这里开始或从头开始，按照自己的节奏学习。 这是第 1 节课，共 4 节。
「高效提示词设计技术」课时需要多长时间？
大多数 CoddyKit 课程大约需要 5–10 分钟。每节课都很精短且互动，所以你能稳步进步，并在网页和应用中从离开的地方继续。
我能在这节 AI Agents with LangChain & Autonomous Workflows 课中编写并运行代码吗？
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