(Answering the program operation questions correctly is the key to passing the exam smoothly, and it is also the module that candidates pay most attention to. This course categorizes the types of questions that appear on the exam. Categorized explanations allow you to understand a topic and go through a category. Divided into the following categories: Number-related operations, one-dimensional array type, string type, two-dimensional array-matrix type, structure type, linked list type, file type.)