TestMarkdown

Some of these words are emphasized.
Some of these words are emphasized also.
Use two asterisks for strong emphasis.
Or, if you prefer, use two underscores instead.
http://images.google.com/images?num=30&q=larry+bird
A First Level Header

A Second Level Header

Now is the time for all good men to come to
the aid of their country. This is just a
regular paragraph.

The quick brown fox jumped over the lazy
dog's back.

Header 3

This is a blockquote.

This is the second paragraph in the blockquote.

This is an H2 in a blockquote

4 < 5

This is a blockquote with two paragraphs. Lorem ipsum dolor sit amet,
consectetuer adipiscing elit. Aliquam hendrerit mi posuere lectus.
Vestibulum enim wisi, viverra nec, fringilla in, laoreet vitae, risus.

Donec sit amet nisl. Aliquam semper ipsum sit amet velit. Suspendisse
id sem consectetuer libero luctus adipiscing.

This is a blockquote with two paragraphs. Lorem ipsum dolor sit amet,
consectetuer adipiscing elit. Aliquam hendrerit mi posuere lectus.
Vestibulum enim wisi, viverra nec, fringilla in, laoreet vitae, risus.

Donec sit amet nisl. Aliquam semper ipsum sit amet velit. Suspendisse
id sem consectetuer libero luctus adipiscing.

This is the first level of quoting.

This is nested blockquote.

Back to the first level.

这是一个标题。

1. 这是第一行列表项。
2. 这是第二行列表项。

给出一些例子代码：

return shell_exec("echo $input | $markdown_script");

• Red
• Green
• Blue

• Red
• Green
• Blue

• Red
• Green
• Blue

1. Bird
2. McHale
3. Parish

1. Bird
2. McHale
3. Parish

single asterisks

single underscores

double asterisks

double underscores