20
2019
03

arduino-1.8.9下载

http://downloads.arduino.cc/arduino-1.8.9-windows.zip

http://downloads.arduino.cc/arduino-1.8.9-windows.exe

20
2019
03

jdk12下载地址

https://www.oracle.com/technetwork/java/javase/downloads/jdk12-downloads-5295953.html