I would like to ask, how to calculate the working time for one year for Canadian students who have experienced immigration? How to get a work permit?

You may not be sure. Experienced immigration refers to applying for a three-year work visa with your report card and diploma after you have graduated from a major for two years or more (U or C). You have worked for one year (37.5 hours per week) within three years, and you must meet the work types of O, A and B. Then apply for the type of immigration. But all the work during your school days can't be counted in this time. So your first two questions are basically untenable. The whole process from applying to getting a visa takes about one year. (It's best to continue working during this period.) If your application is successful, Everything is in accordance with the local students' charging standards, and you also enjoy benefits such as medical insurance. For example, you studied accounting for two years in college, and after graduation, you applied for a work visa. Then you accumulated one year, applied for immigration, and waited for about one year to be approved (during this period, it is best to continue working). Then, after transferring to college, the tuition fee is the same as that of local students, and you can enjoy it.