如何使用open()与read()逐行读取文件并执行其中命令？

Here’s a straightforward, example-rich breakdown of the Markdown formatting rules you need:

• Headings: Use number signs (#), where the count of # maps to the heading level (1 to 6):

  • # Level 1 Heading → # Level 1 Heading
  • ## Level 2 Heading → ## Level 2 Heading

• List Items: Start each entry with a dash (-). Nest sub-items by indenting them:

  - Main list entry
    - Nested sub-entry 1
    - Nested sub-entry 2
  - Another main list entry
  

• Text Emphasis: Wrap text with asterisks (*):

  • Italic: *This text is italicized* → This text is italicized
  • Bold: **This text is bolded** → This text is bolded

• Code/Commands: Use backticks (`) for single-line snippets, and three backticks (```) for multi-line blocks (you can add a language tag for syntax highlighting):

  • Single line: npm install react
  • Multi-line (bash example):

    # Navigate to project folder
    cd my-project
    # Build the app
    npm run build
    

• Quoted Text: Prefix lines with a greater-than sign (>). Nest quotes by adding extra >:

  > This is a basic quote
  >> This is a nested quote inside the first one
  

• Links: Follow the format [Display Text](Target URL):

  • Example: [Stack Overflow](https://stackoverflow.com) → Stack Overflow

• Images: Use [Alt Text](Image URL) (alt text describes the image for accessibility):

  • Example: [Sunset over mountains](https://example.com/sunset.jpg) →

内容的提问来源于stack exchange，提问作者Haikel Fazzani