标题

段落

Don't put tabs or spaces in front of your paragraphs.
 
Keep lines left-aligned like this.

换行

这是第一行.  
这是第二行

这是第一行.
这是第二行

引用

单行引用

Markdown：

> Dorothy followed her through many of the beautiful rooms in her castle.

HTML显示效果：

Dorothy followed her through many of the beautiful rooms in her castle.

多行引用

Markdown：

> Dorothy followed her through many of the beautiful rooms in her castle.
>
> Dorothy followed her through many of the beautiful rooms in her castle.

HTML显示效果：

Dorothy followed her through many of the beautiful rooms in her castle.

Dorothy followed her through many of the beautiful rooms in her castle.

嵌套引用

Markdown：

> Dorothy followed her through many of the beautiful rooms in her castle.
>
>> Dorothy followed her through many of the beautiful rooms in her castle.

HTML显示效果：

Dorothy followed her through many of the beautiful rooms in her castle.

Dorothy followed her through many of the beautiful rooms in her castle.

包含其它元素的引用

Markdown：

> #### The quarterly results look great!
>
> - Revenue was off the chart.
> - Profits were higher than ever.
>
>  *Everything* is going according to **plan**.

HTML显示效果：

The quarterly results look great!

• Revenue was off the chart.
• Profits were higher than ever.

Everything is going according to plan.

列表

代码块

普通代码块

Markdown：

```cpp
#include 

int main(int argc, char *argv[]) {
    printf("Hello, Hugo");
    return 0;
}
```

HTML显示效果：

#include <stdio.h>

int main(int argc, char *argv[]) {
    printf("Hello, Hugo");
    return 0;
}

高亮代码块

Markdown：

```cpp {linenos=table,linenostart=10,hl_lines=[3,"5-7"]}
#include 

int main(int argc, char *argv[]) {
    printf("Hello, Hugo");
    printf("This is highlight line one");
    printf("This is highlight line two");
    printf("This is highlight line there");
    return 0;
}
```

HTML显示效果：

10
11
12
13
14
15
16
17
18

#include <stdio.h>

int main(int argc, char *argv[]) {
    printf("Hello, Hugo");
    printf("This is highlight line one");
    printf("This is highlight line two");
    printf("This is highlight line there");
    return 0;
}

doubletilde

参考文档：

Markdown Basic Syntax