For example:
Start executing a1.bat.
Execute a2 and b1 after 2 hours.
Execute b2 and c1 after another 2 hours.
Execute c2 and a1 after another 2 hours.
Run in this cycle, and do not display the DOS black box.
Please give advice
Start executing a1.bat.
Execute a2 and b1 after 2 hours.
Execute b2 and c1 after another 2 hours.
Execute c2 and a1 after another 2 hours.
Run in this cycle, and do not display the DOS black box.
Please give advice

