Markdown Syntax Images

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Markdown为纯文本文档格式提供了简洁的图片插入语法，包括内联和引用样式。内联语法以感叹号开始，紧跟方括号内的替换文本和圆括号内的图片路径。引用样式则通过定义图像参考并稍后引用。目前Markdown不支持指定图片尺寸，但可以使用HTML的<img>标签来实现。

Markdown Syntax Images

Admittedly, it’s fairly difficult to devise a “natural” syntax for placing images into a plain text document format.

Markdown uses an image syntax that is intended to resemble the syntax for links, allowing for two styles: inline and reference.

Inline image syntax looks like this:

![Alt text](/path/to/img.jpg)

![Alt text](/path/to/img.jpg "Optional title")

That is:

An exclamation mark: !;
followed by a set of square brackets, containing the alt attribute text for the image;
followed by a set of parentheses, containing the URL or path to the image, and an optional title attribute enclosed in double or single quotes.

Reference-style image syntax looks like this:

![Alt text][id]

Where “id” is the name of a defined image reference. Image references are defined using syntax identical to link references:

[id]: url/to/image  "Optional title attribute"

As of this writing, Markdown has no syntax for specifying the dimensions of an image; if this is important to you, you can simply use regular HTML <img> tags.