Creation of Arduino uno development environment

Choose as Arduino UNO

2.
Select port

3.
Click the check box to compile the program
4.
Click the arrow to burn the program

problem ： Serial port not detected
solve ：1. Plug and unplug the interface for many times
The following figure appears in the lower right corner of the interface, which means success .

Enter the development board manager

Update the support package in the figure below （ Don't choose any version , Click Update directly update）