Iam in Srilanka but I like to go study Canada and if while studying and working get permanent visa?

Doesn't work that way in Canada. You come to study or you come to work. You don't get both. If you study, you arrive on a study visa that restricts you to 20 hrs a week work. That's it. It will be part time min. wage work and won't cover costs. You must show you can pay for your entire year when you apply for your visa. If you don't have money to pay tuition, transportation, food, rent etc, you don't get a visa.

Students do not qualify for PR status. THat's completely out. Unless you have a skill needed, work history to back it up and an education, you don't qualify for PR status. This option is not available to you.

Study visas are not pathways to remaining. If you come as a student, you must show proof you will return home when you finish your studies. You do not have the option of remaining and looking for work. It's strictly NON IMMIGRANT. Coming with the purpose of remaining is illegal and will result in your visa being denied.

That will not work. Cana does not grant permanent residence to people on student visas.

Can't happen.

You can study here, but, not work. Nor move here - immigration is MUCH more difficult than becoming a student here.

Not possible as a student visa is a non immigration visa. You MUST leave after studies.

with a Student visa you do the course and return home

its not a door to immigration