摘要：`&` separates commands on a line. `&&` executes this command only if previous command's errorlevel is 0. `||` (not used above) executes this command o 阅读全文

摘要：`command1 & command2` Use to separate multiple commands on one command line. Cmd.exe runs the first command, and then the second command. `command1 && 阅读全文

摘要：```bat set "PATH=%CD%\..\what;%PATH%" set "THE_ENV=0" ``` 阅读全文