[buffer](buffer.md) [event](event.md) [模块机制](%E6%A8%A1%E5%9D%97%E6%9C%BA%E5%88%B6.md) [如何设置环境变量](%E5%A6%82%E4%BD%95%E8%AE%BE%E7%BD%AE%E7%8E%AF%E5%A2%83%E5%8F%98%E9%87%8F.md)