请问如何引用人名？ 请问怎么制作表格？

$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$^2${}^2$^2${}^2$^2${}^2$^2$2$^2${}^2$^2${}^2$^2${}^2$^2${}^2$^2${}^2$^2${}^2$^2${}^2$^2${}^2$^2${}^2$^2${}^2$^2${}^2$^2${}^2$^2${}^2$^2${}^2$^2${}^2$2${}^2$^2${}^2$^2${}^2$^2${}^2$^2${}^2$^2${}^2$^2${}^2$^2${}^2$^2${}^2$^2${}^2$^2${}^2$^2${}^2$

$$\text{fraction}coughcough$$

滚

\sqrt{\sqrt{\sqrt{\sqrt{\sqrt{\sqrt{\sqrt{\sqrt{\sqrt{\sqrt{\sqrt{\sqrt{\sqrt{\sqrt{\sqrt{@lovelove}}}}}}}}}}}}}}}

@vfleaking VFK，啥时候资瓷一下评论删除/改动功能？

\frac{-b + \sqrt{b^2 - 4ac}}{2a}

\begin{equation} \frac{@Emily+ \sqrt{@lovelove}}{@101} \end{equation}

\begin{equation} \frac{@vfleaking+ \sqrt{管理员^5 - @lovelove}}{UOJ} \end{equation}

${\oint }_{l}H\cdot d\iota ={\iint }_{S}J\cdot dS+{\iint }_s{\displaystyle \frac{\partial D}{\partial t}}\cdot dS$ ${\oint }_{l}E\cdot d\iota =-{\iint }_s{\displaystyle \frac{\partial B}{\partial t}}\cdot dS$ ${\oint }_{s}B\cdot ds=0$ ${\oint }_{s}D\cdot dS={\iiint }_V\rho dV$ $\mathrm{\nabla }\times H=J+{\displaystyle \frac{\partial D}{\theta t}}$ $\mathrm{\nabla }\times E=-{\displaystyle \frac{\partial B}{\theta t}}$ $\mathrm{\nabla }\cdot B=0$ $\mathrm{\nabla }\cdot D=\rho$ $-{\displaystyle \frac{\hslash }{2\mu }}{\mathrm{\nabla }}^2\Psi +U\Psi =E\Psi$

前来考古，教程也太可爱了叭叭叭叭叭

[6](https://cdn.luogu.com.cn/upload/image_hosting/ukv9kx1j.png)