1. Pre-job training: it refers to providing necessary vocational training and skills training for new employees before they take up their jobs, so as to help them adapt to the working environment and requirements as soon as possible.

2. On-the-job training refers to providing employees with further vocational training and skills upgrading opportunities according to their work needs and personal development needs.

3. On-the-job training: refers to providing employees with further vocational training and ability improvement opportunities after completing their work tasks for a certain period of time to support their career development and promotion.