通用模板：任何一道系统设计题
索引里没有的题，套这一份。
Copy the prompt, then pick a model. It plays the interviewer and asks you through it scene by scene instead of handing you the answer.
On a phone with the app installed, the system opens the app directly. Links cannot open external apps inside WeChat — open it in a browser first.
复制过去之后，把里面那个占位的题目换成你要练的（比如「设计一个短视频的点赞系统」）。
它没有底牌，模型得自己现推这道题的必答点和深水区，所以判卷不如专门那几份准 —— 列在上面的题，优先用专门那一份。
Have you done this one?
Sign in to mark this one as practised — next time you come back you'll see when you did it.
Notes from people who did this one
Nobody has written yet. After you run it, say what came out of the conversation — which scene stumped you, which conclusion you changed afterwards.
How to use this
How to start
- Pick a question, open it, copy the prompt.
- Paste it into a brand-new conversation — not one where you already discussed this question, or the model follows your old answers.
- Say nothing. Wait for its first question.
Four commands you can call out at any time
跳过move to the next scene now提示give a direction, not the answer直说吧spell this point out in full, then keep pressing on the trade-offs复盘jump to the wrap-up and print the review card
Three traps
- Don't do two questions in one conversation — context from the first makes the model prejudge your level.
- Don't look up the answer the moment it asks. Being stuck for 30 seconds is itself useful information.
- When it starts praising you, point it back to rule five — feeling validated crowds out noticing what you missed.
Suggested order: start with the cross-cutting drill as a parts test, use the short-link question to get used to the flow, then pick by the direction you interview for, and keep redoing the one about your own project.
Sign in to write a note.