https://dl.espressif.com/dl/package_esp32_index.json, http://arduino.esp8266.com/stable/package_esp8266com_index.json 参考这个安装 https://www.cnblogs.com/kekeoutlook/p/11042505.html https://randomnerdtutorials.com/installing-the-esp32-board-in-arduino-ide-windows-instructions/ https://blog....