cmd 命令连接

&: command1 & command2 Execute Command1 and then execute Command2

for example: cmd /c dir "c:\" & cmd /c dir "d:\"

&&: command1 && command2 Runs the command2 only when command1 doesn't Complete successfully

||: command1 || command2 Runs the second command if the first command had an error

(): (command1 || command2) || (command3 & command4) Defines the order in which commands are to be executed