Pain points: You need to quickly generate code, but you don’t know where to start.

Example of question:

Python: "Create a Python script for me to read the CSV file and calculate the average value for each column."

Java: "Write a Java method to invert a string and return the result."

JavaScript: "Implement a simple calculator with JavaScript that supports addition, subtraction, multiplication and division operations."

Pain points: It is difficult to understand when reading other people's codes and needs detailed explanation.

Example of question:

Python: "What is the function of this Python code:

def factorial(n): return 1 if n == 0 else n * factorial(n-1)

? ”

Java: "Explain this Java code

synchronized

What are keywords?

synchronized(lock) { ... }

JavaScript: "This JavaScript section

async/await

How does the code work? ”

Pain point: An error occurred while the code was running, and I need help locating the problem.

Example of question:

Python: "I reported an error when running this piece of Python code

NameError: name 'x' is not defined

, How to fix it? The code is as follows:

print(x)

Java: "Why is this Java code thrown

NullPointerException

? The code is as follows:

String str = null; System.out.println(str.length());

JavaScript: "This JavaScript code has no output in the browser console. What's wrong? The code is as follows:

console.log('Hello');

Pain points: The code is inefficient and requires optimization suggestions.

Example of question:

Python: "How to optimize this Python code to improve performance:

for i in range(1000000): print(i)

? ”

Java: "This Java code looks very verbose, how to simplify it? The code is as follows:

if (condition1) { doSomething(); } else if (condition2) { doSomethingElse(); } else { doNothing(); }

SQL: "This SQL query speed is very slow, how to optimize it? The query is as follows:

SELECT * FROM Users WHERE Age > 30;

Pain points: When encountering specific technical problems, you need detailed answers.

Example of question:

Python: "In Python

with

What is the function of a statement? ”

Java: "In Java

HashMap

and

TreeMap

What's the difference? ”

JavaScript: "How to implement event listening in JavaScript?"

RESTful API: "What is a RESTful API and how to design one?"

Pain points: You need to learn new technologies, but don’t know where to start.

Example of question:

Python Web Development: “Recommended some good resources to learn Python Web Development.”

Java Concurrent Programming: “Where can I find best practices for Java Concurrent Programming?”

React Framework: “Are there any good tutorials recommended for learning React Framework?”

Data Structures and Algorithms: "How to systematically learn data structures and algorithms? What are some good books or websites?"

Pain points: The overall architecture of the project is required, but there is no experience.

Example of question:

Microservice architecture: "How to design an e-commerce system based on microservice architecture?"

Task Scheduling System: "What factors need to be considered when designing a task scheduling system?"

Docker Deployment: “How to deploy a Flask application with Docker?”

Message Queue: "What is the role of message queue in a distributed system? How to choose the right message queue tool?"

Pain points: Not familiar with the use or configuration of a certain tool, need help.

Example of question:

VSCode: "How to configure VSCode to support Python development?"

IntelliJ IDEA: “How to install and configure Maven in IntelliJ IDEA?”

Docker: “How is Docker’s Docker file written?”

Git: "How does Git resolve conflicts? How do I do it if I want to give up the merge?"

Pain points: The system performance is poor or there is a malfunction, and it needs to be investigated and resolved.

Example of question:

Java Memory Leak: "How to troubleshoot memory leaks in Java applications?"

Database query speed: "My database query speed is very slow. How to analyze bottlenecks?"

Kubernetes Cluster: “How to optimize resource utilization of Kubernetes Clusters?”

Linux Server: "How to monitor CPU and memory usage of Linux Server?"

Pain points: When you encounter unfamiliar programming languages ​​or frameworks, you need to get started quickly.

Example of question:

Go: “How to get started with Go quickly?”

Flutter: "How to implement a simple login page in Flutter?"

Vue.js: "How to implement communication between components in Vue.js?"

TensorFlow: "How to implement a simple image classification model with TensorFlow?"