假设任何专业都有固定的学习年限，每学期含两学期，每学期的时间长度和学分上限值均相等。每个专业开设的课程都是确定的，而且课程在开设时间的安排必须满足先修关系。每门课程有哪些先修课程是确定的，可以有任意多门，也可以没有。每门课恰好占一个学期。试在这样的前提下设计一个教学计划程序。-assuming any professional have fixed the length of each semester with two semesters each semester and the length of time limits on the credits are equal. Every professional courses are opened to determine, and the creation of curriculum time arrangements must meet prevocational relations. Each course curriculum which is pre-determined and can have any number of doors, there will be no. Each class just for a semester. Ban on the same premise to design a teaching program.