学生选课习题 

 学生：
     信息：学号，姓名，住址，选课列表
     功能：
         查看学生所有课程信息
         添加课程：将选好的课程添加到课程列表中
 课程
     信息：课程编号，课程名称，老师
     功能：
         查看课程的全部信息
         设置老师
 老师
     信息：老师编号，老师姓名，老师电话
要求：创建6个老师，6门课程，30个学生，给每个学生添加三门课


 1 from random import randint
 2 
 3 class Stu(object):
 4     def __init__(self,id,name,address):
 5         self.id = id
 6         self.name = name
 7         self.address = address
 8         self.coures = []
 9     def add_coures(self,coures):
10         self.coures.append(coures)
11     def show(self):
12         print("学生：%s选的课程：" %self.name)
13         for i in self.coures:
14             print("课程名：%s" %i.name)
15 
16     # def __str__(self):
17     #     print("学生：%s选的课程：" % self.name)
18     #     for i in self.coures:
19     #         print("课程名：%s" % i.name)
20 
21 
22 class Coures(object):
23     def __init__(self,id,name,teacher=None):
24         self.id = id
25         self.name = name
26         self.teacher = teacher
27     def set_tea(self,teacher):
28         self.teacher = teacher
29     def show_coures(self):
30         if self.teacher:
31             print("%s课的老师是%s" %(self.name,self.teacher))
32         else:
33             print("%s课的老师是%s" % (self.name, "无"))
34 
35 class Teacher(object):
36     def __init__(self,id,name,phone):
37         self.id = id
38         self.name = name
39         self.phone = phone
40 
41 t1 = Teacher(1,"shuai",1)
42 t2 = Teacher(2,"aoli",2)
43 t3 = Teacher(3,"deng",3)
44 t4 = Teacher(4,"xiang",4)
45 t5 = Teacher(5,"liu",5)
46 t6 = Teacher(6,"chuang",6)
47 
48 c1 = Coures(1,"语文",t1)
49 c2 = Coures(2,"数学",t2)
50 c3 = Coures(3,"生物",t3)
51 c4 = Coures(4,"物理",t4)
52 c5 = Coures(5,"化学",t5)
53 c6 = Coures(6,"英语",t6)
54 c_list = [c1,c2,c3,c4,c5,c6]
55 stu_list = []
56 for i in range(30):
57     stu = Stu(i,"stu%s"%i,"这个屯")
58     s = set()
59     while len(s) <3:
60         t = randint(0,5)
61         s.add(t)
62     for i in range(3):
63         stu.add_coures(c_list[list(s)[i]])
64     stu_list.append(stu)
65 for stu in stu_list:
66     stu.show()

 

posted @ 2019-06-04 16:22  傲立_帅  阅读(169)  评论(0)    收藏  举报