如何让字符串随屏幕宽高比居中?尝试.center和len()未果
Markdown Formatting Instructions
Use the following rules to format content with Markdown:
Heading Formatting
- Use number signs (
#) at the start of a line to create headings. The number of signs determines the heading level:#for Heading 1 (largest)##for Heading 2###for Heading 3, and so on up to######for Heading 6 (smallest)
List Items
- Start each unordered list item with a dash (
-). For nested lists, indent the items with spaces:- Main list item
- Nested sub-item
- Main list item
Text Emphasis
- Wrap text with single asterisks (
*) to make it italicized: This is emphasized text - Use double asterisks (
**) for bold text: This is bold text
Code & Commands
- Surround single-line code or commands with backticks (
`):npm install package-name - For multi-line code blocks, use triple backticks (
```):function greet(user) { return `Hello, ${user}!`; }
Quoted Text
- Prefix lines with a greater-than sign (
>) to create blockquotes:This is a quoted paragraph.
It can extend across multiple lines.
Links
- Wrap the link text in square brackets (
[]), followed by the URL in parentheses (()): Project Repository
Images
- Add an exclamation mark (
!) at the start, then wrap alt text in square brackets, followed by the image URL in parentheses:
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