这是我帮我同学做的课程设计。

下面我写上这次设计的需求分析：

[问题描述]

大学的每个专业都要制定教学计划。假设任何专业都有固定的学习年限，每学年含两学

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编制程序。

[基本要求]

（1）输入参数包括：学期总数，一学期的学分上限，每门课的课程号(固定占3位的字母数字串)、学分和直接先修课的课程号。

（2）允许用户指定下列两种编排策略之一：一是使学生在各学期中的学习负担尽量均匀；二是使课程尽可能地集中在前几个学期中。

（3）若根据给定的条件问题无解，则报告适当的信息；否则将教学计划输出到用户指定的文件中。计划的表格格式自行设计。

[测试数据]

学期总数：6；学分上限：10；该专业共开设12门课，课程号从C01到C12，学分顺序为2,3,4,3,2,3,4,4,7,5,2,3。

-This is what I do to help my students to curriculum design.

Now I write the design requirements of this analysis:

[Problem Descr iption]

　　University teaching plan for each professional should be developed. Suppose that any profession has a fixed period of schooling, every school year with two academic

Period, the length of time each semester and credits on the limits are equal to each professional courses offered are determined, and courses in

Set up time arrangements must meet the Pre-ties. What are Pre-each course curriculum is determined, you can have as many doors,

There will be no. Each course is just accounting for one semester. Trial in such a premise to design a teaching plan programming.

[Basic requirements]

　　(1) The input parameters include: the total number of semesters, one semester credit limit for each class of the course number (fixed account for three of the alpha-numeric string), credits and direct Prerequisite course number.

(2) allows the user