Training students^, problem-solving ability is an important part of university education. Between the basic level exercises for the purpose of mastering knowledge and the high-level ability for training requiring innovative ability, the intermediate level practice are set up in the form of post-class thinking problems for training students to use learned knowledge to solve some open or practical problems. The training of students^, problem-solving ability is also the requirement of ideological and political education in the curriculum. At the same time, ideological and political elements can also be integrated into the problems to cultivate students^, scientific spirit of exploration and to pursuit new knowledge.