avrdude: Version 6.3-20190619 Copyright (c) 2000-2005 Brian Dean, http://www.bdmicro.com/ Copyright (c) 2007-2014 Joerg Wunsch System wide configuration file is "D:\a\Arduino\hardware\tools\avr/etc/avrdude.conf" Using Port : COM3 Using Programmer : arduino Overriding Baud Rate : 115200 avrdude: stk500_getsync() attempt 1 of 10: not in sync: resp=0x0d avrdude: stk500_getsync() attempt 2 of 10: not in sync: resp=0x0a avrdude: stk500_getsync() attempt 3 of 10: not in sync: resp=0x20 avrdude: stk500_getsync() attempt 4 of 10: not in sync: resp=0x65 avrdude: stk500_getsync() attempt 5 of 10: not in sync: resp=0x74 avrdude: stk500_getsync() attempt 6 of 10: not in sync: resp=0x73 avrdude: stk500_getsync() attempt 7 of 10: not in sync: resp=0x20 avrdude: stk500_getsync() attempt 8 of 10: not in sync: resp=0x4a avrdude: stk500_getsync() attempt 9 of 10: not in sync: resp=0x61 avrdude: stk500_getsync() attempt 10 of 10: not in sync: resp=0x6e avrdude done. Thank you. 上传项目出错