Not exactly. Training class leave is not counted as class hours, because the courses purchased by the training class are calculated according to fixed time, fixed number of people and fixed price. Even if students take time off, the organization will not change the course schedule and price. In order to maintain the quality of teaching and students' learning progress, institutions usually require students to attend classes on time. If students often ask for leave, it will affect the progress and effect of learning. Therefore, institutions usually limit the number and time of leave to maintain students' learning order and teaching quality.