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New Users Guide 新手指南

GatekeeperMaxim
GatekeeperMaxim Administrators
#1

Welcome to Gatekeepers Forum.


Hello everyone, I'm 麦青Maxim, from China. I started this forum so we can store and publish our notes and articles about what we're learning.

There's a tricky problem with knowledge communities: when we browse one, we're both readers and creators. As readers, we want meaningful, in-depth articles. But as writers, we need to produce rough drafts first — you never know how far a normal idea might go, and it's exhausting to worry about "depth" and "meaning" every time inspiration strikes. So I made this forum: here you can post anything you gain from studying, without worrying about whether it's "good enough" for other communities.

The name "Gatekeepers Forum" comes from my online name, "GatekeeperMaxim" — my group members weren't interested in brainstorming names, so I just used mine. I chose that name because I used to be a gatekeeper (a security guard) at an apartment complex.

Anyway, feel free to join our QQ group: 1106148649.


Below is the New Users Guide in Chinese and English versions.

GatekeeperMaxim
GatekeeperMaxim OP Administrators
#2

📘 新手指南:发帖、Markdown 与 LaTeX 公式(New Users Guide in Chinese Version)

欢迎来到 Gatekeepers Forum!
这个帖子会教你如何使用论坛的基本功能,以及如何用 Markdown 排版文字、用 LaTeX 输入数学公式。


一、基本功能

1. 发新帖

  • 点击首页的 “New Topic”(或“发起讨论”)。
  • 选择分类(Category),填写标题和正文,然后点 “Create Topic” 发布。

2. 回复帖子

  • 在帖子底部找到回复框,输入内容后点 “Reply” 即可。
  • 如果想引用某人的话,可以选中文字后点 “Quote”,或者手动用 > 引用。

3. 上传图片

  • 拖拽图片到编辑器,或者点击工具栏的图片图标上传。
  • 上传需要一点时间,请等图片路径出现在正文里再点发布,否则图片可能丢失。
  • 论坛会自动压缩图片并转成 WebP 格式,节省空间和流量。

4. 编辑与删除

  • 自己发的帖子/回复,右上角有 编辑 和 删除 按钮(有时限,具体看论坛设置)。

5. @提及用户

  • 输入 @用户名 可以提醒对方,比如 @GatekeeperMaxim。

6. 个人资料

  • 点击右上角头像 → Settings,可以修改头像、密码、个性签名等。

二、Markdown 排版语法

Markdown 是一种用简单符号排版的语法。在编辑器里输入下面的符号,发布后就会变成漂亮的格式。

1. 标题

# 一级标题
## 二级标题
### 三级标题

渲染效果:

一级标题

二级标题

三级标题

2. 加粗、斜体、删除线

**加粗文字**
*斜体文字*
~~删除线~~

渲染效果:

加粗文字
斜体文字
删除线

3. 列表

- 无序列表项
- 第二项
  - 嵌套项

1. 有序列表
2. 第二项

渲染效果:

  • 无序列表项
  • 第二项
    • 嵌套项
  1. 有序列表
  2. 第二项

4. 链接与图片

[链接文字](https://example.com)
![图片描述](/uploads/xxx.png)

渲染效果:

链接文字
图片描述
(图片需要实际路径才能显示,这里只做演示)

5. 引用

> 这是一段引用文字。
> 可以有多行。

渲染效果:

这是一段引用文字。
可以有多行。

6. 代码

  • 行内代码:用单个反引号包围,比如 ` print("Hello") `
    渲染效果:print("Hello")
  • 代码块:用三个反引号包围,并注明语言(可选):
def hello():
    print("Hello, FlatBB!")

渲染效果:

def hello():
    print("Hello, FlatBB!")

7. 表格

| 功能 | 语法 |
|------|------|
| 加粗 | **文字** |
| 斜体 | *文字* |

渲染效果:

功能语法
加粗文字
斜体文字

8. 分割线

---

渲染效果:


三、LaTeX 数学公式

论坛已经集成了 MathJax,支持用 LaTeX 语法写数学公式。

1. 行内公式

用 $...$ 包围,比如:

$E = mc^2$

渲染效果:$E = mc^2$

2. 块级公式

用 $$...$$ 包围,公式会居中显示:

$$
\int_0^\infty e^{-x^2} dx = \frac{\sqrt{\pi}}{2}
$$

渲染效果:

$$
\int_0^\infty e^{-x^2} dx = \frac{\sqrt{\pi}}{2}
$$

3. 常用符号

符号语法符号语法
分数\frac{a}{b}平方根\sqrt{x}
求和\sum_{i=1}^n积分\int_a^b
极限\lim_{x \to 0}无穷\infty
希腊字母\alpha, \beta, \gamma乘号\times
矩阵\begin{pmatrix} a & b \\ c & d \end{pmatrix}方程组\begin{cases} ... \end{cases}

4. 多行公式

$$
\begin{aligned}
a &= b + c \\\\
  &= d + e
\end{aligned}
$$

渲染效果:

$$
\begin{aligned}
a &= b + c \\
&= d + e
\end{aligned}
$$

5. 矩阵示例

$$
\begin{pmatrix}
1 & 2 \\\\
3 & 4
\end{pmatrix}
$$

渲染效果:

$$
\begin{pmatrix}
1 & 2 \\
3 & 4
\end{pmatrix}
$$


四、小提示

  • 写完先预览:编辑器有预览功能,发布前可以检查格式。
  • 公式不显示? 检查 $ 和 $$ 是否成对,中间不要有多余空格。
  • 图片上传慢:浏览器端会自动压缩,稍等片刻即可。
  • 有问题? 在论坛里发帖提问,或者加入 QQ 群 1106148649 一起讨论。

祝你在 Gatekeepers Forum 学习愉快,随时分享你的笔记和想法!
—— GatekeeperMaxim

GatekeeperMaxim
GatekeeperMaxim OP Administrators
#3

Here is the English version of the New User Guide, ready to be posted on your forum.


📘 New User Guide: Posting, Markdown & LaTeX

Welcome to Gatekeepers Forum!
This guide will show you how to use the forum, format your text with Markdown, and write math with LaTeX.


1. Basic Features

Starting a New Topic

  • Click “New Topic” on the homepage.
  • Choose a category, write a title and body, then click “Create Topic”.

Replying

  • Use the reply box at the bottom of a topic. Click “Reply” when you're done.
  • To quote someone, select their text and click “Quote”, or manually use > at the start of a line.

Uploading Images

  • Drag and drop images into the editor, or click the image icon in the toolbar.
  • Wait until the image path appears in your post before publishing — otherwise the image may be lost.
  • The forum automatically compresses images and converts them to WebP to save space and bandwidth.

Editing & Deleting

  • Your own posts and replies have Edit and Delete buttons in the top-right corner (time limits may apply).

Mentioning Users

  • Type @username to notify someone, e.g. @GatekeeperMaxim.

Your Profile

  • Click your avatar in the top-right → Settings to change your avatar, password, signature, etc.

2. Markdown Formatting

Markdown lets you format text with simple symbols. Type the symbols below, and they will render nicely after you post.

Headings

# Heading 1
## Heading 2
### Heading 3

Rendered:

Heading 1

Heading 2

Heading 3

Bold, Italic, Strikethrough

**Bold text**
*Italic text*
~~Strikethrough~~

Rendered:

Bold text
Italic text
Strikethrough

Lists

- Unordered item
- Second item
  - Nested item

1. Ordered item
2. Second item

Rendered:

  • Unordered item
  • Second item
    • Nested item
  1. Ordered item
  2. Second item

Links & Images

[Link text](https://example.com)
![Image description](/uploads/xxx.png)

Rendered:

Link text
Image description
(The image needs a real path to show up — this is just a demo.)

Quotes

> This is a quote.
> It can span multiple lines.

Rendered:

This is a quote.
It can span multiple lines.

Code

  • Inline code: wrap with single backticks, e.g. ` print("Hello") `
    Rendered: print("Hello")
  • Code block: wrap with triple backticks, optionally add a language:
def hello():
    print("Hello, FlatBB!")

Rendered:

def hello():
    print("Hello, FlatBB!")

Tables

| Feature | Syntax |
|---------|--------|
| Bold    | **text** |
| Italic  | *text* |

Rendered:

FeatureSyntax
Boldtext
Italictext

Horizontal Rule

---

Rendered:


3. LaTeX Math

The forum uses MathJax, so you can write math with LaTeX.

Inline Math

Wrap with $...$, for example:

$E = mc^2$

Rendered: $E = mc^2$

Display Math

Wrap with $$...$$ to center the formula:

$$
\int_0^\infty e^{-x^2} dx = \frac{\sqrt{\pi}}{2}
$$

Rendered:

$$
\int_0^\infty e^{-x^2} dx = \frac{\sqrt{\pi}}{2}
$$

Common Symbols

SymbolSyntaxSymbolSyntax
Fraction\frac{a}{b}Square root\sqrt{x}
Sum\sum_{i=1}^nIntegral\int_a^b
Limit\lim_{x \to 0}Infinity\infty
Greek letters\alpha, \beta, \gammaTimes\times
Matrix\begin{pmatrix} a & b \\ c & d \end{pmatrix}Cases\begin{cases} ... \end{cases}

Multi-line Equations

$$
\begin{aligned}
a &= b + c \\\\
  &= d + e
\end{aligned}
$$

Rendered:

$$
\begin{aligned}
a &= b + c \\
&= d + e
\end{aligned}
$$

Matrix Example

$$
\begin{pmatrix}
1 & 2 \\\\
3 & 4
\end{pmatrix}
$$

Rendered:

$$
\begin{pmatrix}
1 & 2 \\
3 & 4
\end{pmatrix}
$$


4. Tips

  • Preview before posting — use the preview button to check your formatting.
  • Formula not showing? Make sure your $ and $$ are paired and have no extra spaces.
  • Images uploading slowly? The browser compresses them first, so give it a moment.
  • Questions? Post in the forum or join our QQ group: 1106148649.

Enjoy your time on Gatekeepers Forum and share your notes and ideas freely!
— GatekeeperMaxim

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