Arduino:1.8.9 (Windows 7), 开发板："Arduino Nano, ATmega328P"

项目使用了 3230 字节，占用了 (10%) 程序存储空间。最大为 30720 字节。

全局变量使用了68字节，(3%)的动态内存，余留1980字节局部变量。最大为2048字节。

avrdude: stk500_recv(): programmer is not responding

avrdude: stk500_getsync() attempt 1 of 10: not in sync: resp=0xd7

avrdude: stk500_recv(): programmer is not responding

avrdude: stk500_getsync() attempt 2 of 10: not in sync: resp=0xd7

avrdude: stk500_recv(): programmer is not responding

avrdude: stk500_getsync() attempt 3 of 10: not in sync: resp=0xd7

avrdude: stk500_recv(): programmer is not responding

avrdude: stk500_getsync() attempt 4 of 10: not in sync: resp=0xd7

avrdude: stk500_recv(): programmer is not responding

avrdude: stk500_getsync() attempt 5 of 10: not in sync: resp=0xd7

avrdude: stk500_recv(): programmer is not respon