Cursor Usage Guide

Introduction to Cursor

Cursor is a revolutionary code editor that integrates powerful AI features designed to improve developer productivity.

🤖 AI-Assisted Coding

• Real-time code completion
• Error detection and fix suggestions
• Intelligent code generation

🔄 Code Explanation and Refactoring

• Explain complex code
• Provide refactoring suggestions
• Code optimization recommendations

🌐 Multi-Language Support

• Support for mainstream programming languages
• Framework-aware suggestions
• Syntax highlighting

⚡ Integrated Development Environment

• Built-in terminal
• Git integration
• Debugging tools

Installation and Setup

Download and Installation Steps

1. Download the Installer

Visit Cursor official website and click the "Download" button.

2. Run the Installer

Choose the appropriate version for your operating system:

Windows

# Run the downloaded .exe file
cursor-setup.exe

macOS

# Open the .dmg file and drag to Applications folder
# Or install using Homebrew
brew install --cask cursor

Linux

# Download the .AppImage file
chmod +x cursor.AppImage
./cursor.AppImage

3. Initial Configuration

1. Log in or create an account on first run
2. Choose your preferred theme and font
3. Configure commonly used programming languages
4. Set up AI features (may require API key)

Common Keyboard Shortcuts

Key to Efficiency

Mastering these shortcuts can significantly improve your development efficiency. It's recommended to print them out and keep them handy until you're fully familiar.

File Operation Shortcuts

Operation	Windows/Linux	macOS
New File	Ctrl + N	Cmd + N
Open File	Ctrl + O	Cmd + O
Save File	Ctrl + S	Cmd + S
Close File	Ctrl + W	Cmd + W

Editing Operation Shortcuts

Operation	Windows/Linux	macOS
Copy	Ctrl + C	Cmd + C
Cut	Ctrl + X	Cmd + X
Paste	Ctrl + V	Cmd + V
Undo	Ctrl + Z	Cmd + Z
Redo	Ctrl + Y	Cmd + Shift + Z
Find	Ctrl + F	Cmd + F
Replace	Ctrl + H	Cmd + H

AI Assistant Feature Shortcuts

Operation	Windows/Linux	macOS
Activate AI Assistant	Ctrl + K	Cmd + K
AI Code Comment	Ctrl + /	Cmd + /
AI Code Explanation	Alt + [	Option + [
AI Optimization Suggestions	Alt + ]	Option + ]

Collaborative Development with AI

Code Completion and Suggestions

Auto Code Completion Example

def calculate_average(numbers):
    # Start typing 'return', AI will provide complete average calculation code
    return sum(numbers) / len(numbers)

Usage Tips

• Use Tab or Enter key to accept suggestions
• Use up/down arrow keys to switch between multiple suggestions
• Press Esc to cancel suggestions

Code Explanation and Refactoring

Original Code

def fibonacci(n):
    if n <= 1:
        return n
    else:
        return fibonacci(n-1) + fibonacci(n-2)

AI Explanation

This is a recursive implementation of the Fibonacci sequence function:
1. Base case: When n<=1, directly return n
2. Recursive case: Return the sum of the previous two numbers
3. Note: This implementation has a time complexity of O(2^n)

AI Optimization Suggestion

def fibonacci(n):
    if n <= 1:
        return n
    a, b = 0, 1
    for _ in range(n):
        a, b = b, a + b
    return a

Error Diagnosis and Fixing

Example: Syntax Error Fix

# Code with syntax error
def greet(name)
    print("Hello, " + name + "!")

# Cursor will detect the missing colon and provide a fix suggestion:
def greet(name):
    print("Hello, " + name + "!")

Generate Code Using Natural Language

Example: Generate Code Through Comments

# Create a function that takes a list of strings and returns all strings with length greater than 5

Press Ctrl + K, and AI will generate:

def filter_long_strings(string_list):
    return [s for s in string_list if len(s) > 5]