Create an Erlang备忘清单 in markdown format to document common commands and
operations for Erlang programming, including入门, 代码结构, 常用内置函数 (BIFs),
并发编程, 错误处理, 分布式编程, OTP框架, 和测试.
This cheat sheet aims to provide a quick reference for Erlang developers and
learners, summarizing key points and examples for various aspects of the
language.