file: youmitools.py
fun:  1. paramcheck
        check the function parameter
      2. deserted
        delete function you don't need
	  3. muti_for_simula
		generate a list of indexes

create a new repository on the command line

echo "# pythonTools" >> README.md
git init
git add README.md
git commit -m "first commit"
git branch -M main
git remote add origin https://github.com/YoumiSum/pythonTools.git
git push -u origin main

push an existing repository from the command line

git remote add origin https://github.com/YoumiSum/pythonTools.git
git branch -M main
git push -u origin main