注意斜杠
尤其是rsync目录后面的斜杠
D:\360Downloads\rsync-client\rsync.exe -avz --no-owner --no-group --exclude-from /cygdrive/d/360downloads/nginx/html/rsyncexclude.txt rsync://rsync.mirrors.ustc.edu.cn/centos/6.10/ /cygdrive/d/360downloads/nginx/html/centos/6
D:\360Downloads\rsync-client\rsync.exe -avz --no-owner --no-group --exclude-from /cygdrive/d/360downloads/nginx/html/rsyncexclude2.txt rsync://rsync.mirrors.ustc.edu.cn/centos/7.5.1804/ /cygdrive/d/360downloads/nginx/html/centos/7