Each course has its course number and serial number, and the serial number indicates the course. You can find a counselor to understand the specific situation.

Each course has its own course number and serial number. For example, 0 100200 corresponds to English (3). Then there is the class number. The serial number of this category refers to the specific category. For example, 0 100200 English (3) with the serial number of 0 1 is a class of Teacher Liu in the basic teaching building B20 1 on Monday morning. And 0 100200 English with serial number 02 (3) is a class taught by teacher B 102 on Tuesday afternoon. That's it.