有用的链接 NodeMCU手册:https://nodemcu.readthedocs.io/en/dev/NodeMCU固件生成:https://nodemcu-build.com/ESP8266相关资料和下载工具:https://www.espressif.com/zh-hans/support/download/other-tools?keys=&field_type_tid%5B%5D=14