Latex项目编号

生成黑点项目编号

\begin{itemize}

\item \textbf{Applies widely}\\

This  system can be used for many types of airplanes, and it also

solves the interference during  the procedure of the boarding

airplane,as described above we can get to the  optimization

boarding time.We also know that all the service is automate.

\item \textbf{Improve the quality of the airport service}\\

Balancing the cost of the cost and the benefit, it will bring in

more convenient  for airport and passengers.It also saves many

human resources for the airline. \item \textbf{}

\end{itemize}

自定义项目编号

\begin{enumerate}[\bf step 1]

\item good morning...

\item good morning....

\end{enumerate}