My purpose is to sequentially running a series of m-file and python programs.
And thanks to Mofi, Shai, and moarningsun, I could find out that this batch file is success
You can save all the relevant variables to a mat file at the end of aatest1 and load them at the begining of aatest2.
You can run your python script in matlab (without terminating aatest1).
Use matlab's system command to run the python script in Matlab:
[status,cmdout] = system( 'C:\python27\python.exe python.py input.xlsx' );