关键词:
博客地址:
一、作业需求
程序名称: 选课系统
角色:学校、学员、课程、讲师
要求:
1. 创建北京、上海 2 所学校
2. 创建linux , python , go 3个课程 , linuxpy 在北京开, go 在上海开
3. 课程包含,周期,价格,通过学校创建课程
4. 通过学校创建班级, 班级关联课程、讲师
5. 创建学员时,选择学校,关联班级
6. 创建讲师角色时要关联学校,
7. 提供两个角色接口
8. 学员视图, 可以注册, 交学费, 选择班级,
9. 讲师视图, 讲师可管理自己的班级, 上课时选择班级, 查看班级学员列表 , 修改所管理的学员的成绩
10. 管理视图,创建讲师, 创建班级,创建课程
11. 上面的操作产生的数据都通过pickle序列化保存到文件里
学校视图:
选择学校:
1.创建班级
2.创建讲师
3.创建讲师
讲师:
1.查看班级
2.查看班级学员列表
学生:
1.注册
2.报名缴费
3.选择班级
代码如下:
#/usr/bin/env python3 # -*_ coding:utf-8 -*- # main.py import sys import json class School(object): #创建学校类 def __init__(self, school_name, address): self.school_name = school_name self.address = address def create_class(self): #创建班级 print("欢迎创建班级".center(50, ‘-‘)) classroom_name = input("请输入班级名称:") classroom_period = input("请输入班级周期:") classroom_obj = Classroom(classroom_name, classroom_period, choice_school_obj.school_name) # 班级的实例 print("班级成功创建,班级信息如下".center(50, ‘-‘)) classrooms[classroom_name] = classroom_obj # 将班级名与班级对象相关联 classroom_obj.show_classroom_info() def hire_teacher(self): #雇讲师 print("欢迎雇用讲师".center(50, ‘-‘)) # print("已有讲师Name:%s, Course:%s, Classroom:%s") teacher_name = input("请输入讲师名字:") teacher_sex = input("请输入讲师性别:") teacher_age = input("请输入讲师年龄:") teacher_course = input("请输入讲师对应课程:") teacher_classroom = input("请输入讲师对应班级:") teacher = Teacher(teacher_name, teacher_sex, teacher_age, teacher_course, teacher_classroom, choice_school_obj.school_name) # 实例化讲师对象 teacher_dict = {"teacher_shcool_name": teacher.teacher_school_name, "teacher_sex": teacher_sex, "teacher_age": teacher_age, "teacher_course": teacher_course, "teacher_classroom": teacher_classroom} # 用字典来存放讲师信息 teacher.show_teacher_info() # 通过json将讲师的字典反序列化到dic字典中 if not dic: # 字典如果为空 dic[teacher_name] = teacher_dict # 将讲师名与讲师对象相关联 # 通过json将讲师的字典序列化到teacher_文件中 json.dump(dic, open("teacher_db", "w", encoding=‘utf-8‘), ensure_ascii=False, indent=2) else: # 如果文件中已有讲师信息 if dic.get(teacher_name): # 字典中不存在key,则返回none,不曝错 print("%s讲师已存在,不能创建名字相同的讲师" % teacher_name) flag = True elif not dic.get(teacher_name): dic[teacher_name] = teacher_dict json.dump(dic, open("teacher_db", "w", encoding=‘utf-8‘), ensure_ascii=False, indent=2) def create_course(self): #创建课程 print("迎欢创建课程".center(50, ‘-‘)) course_type = input("请输入课程类型[eg:技术/教育/自然科学/艺术...]:") course_name = input("请输入课程名称:") course_price = input("请输入课程价格:") course_period = input("请输入课程周期:") course = Course(course_type, course_name, course_price, course_period, choice_school_obj.school_name) print("课程成功创建,课程信息如下".center(50, ‘-‘)) courses_dict[course_name] = course # 将课程名与课程对象相关联 course.show_course_info() class Course(object): #课程类 def __init__(self, course_type, course_name, course_price, course_period, course_place): self.course_type = course_type self.course_name = course_name self.course_price = course_price self.course_period = course_period self.course_place = course_place def show_course_info(self): print("课程类型:%s,名称:%s,价格:%s,周期:%s" % (self.course_type,self.course_name, self.course_price, self.course_period)) class Classroom(object): #班级类 def __init__(self, classroom_name, classroom_period, classroom_school_name): self.classroom_name = classroom_name self.classroom_period = classroom_period self.classroom_school_name = classroom_school_name def show_classroom_info(self): print("班级名称:%s 班级周期:%s" % (self.classroom_name, self.classroom_period)) class SchoolMember(object): # 学校成员类(学生/老师) def __init__(self, member_name, member_sex, member_age): self.member_name = member_name self.member_sex = member_sex self.member_age = member_age class Student(SchoolMember): #创建学生类(继承学校成员类) def __init__(self, stu_school, stu_name, stu_sex, stu_age, stu_id, stu_course, course_price): super(Student, self).__init__(stu_name, stu_sex, stu_age) self.stu_school = stu_school self.stu_id = stu_id self.stu_course = stu_course self.course_price = course_price def show_student_info(self): print(""" ---------------学生%s的信息-------------- Name:%s School:%s Sex:%s Age:%s ID:%s Course:%s Course_price:%s """ % (stu1.member_name,stu1.member_name,stu1.stu_school,stu1.member_sex, stu1.member_age, stu1.stu_id, stu1.stu_course,stu1.course_price)) class Teacher(SchoolMember): #讲师类 def __init__(self, teacher_name, teacher_sex, teacher_age, teacher_course, teacher_classroom, teacher_school_name): super(Teacher, self).__init__(teacher_name, teacher_sex, teacher_age) self.teacher_course = teacher_course self.teacher_classroom = teacher_classroom self.teacher_school_name = teacher_school_name def show_teacher_info(self): print(""" -------------讲师%s的信息------------- Name:%s Sex:%s Age:%s Course:%s Classroom:%s School_name:%s """ % (self.member_name, self.member_name, self.member_sex, self.member_age, self.teacher_course, self.teacher_classroom, self.teacher_school_name)) def show_classroom(self, te_name): #查看班级信息 传一个班级对象,通过对象查看班级信息 class_room = Classroom(teachers_dict[te_name].teacher_classroom, courses_dict[teachers_dict[te_name].teacher_course].course_period, choice_school_obj.school_name) class_room.show_classroom_info() def show_student(self): #查看学生信息 传一个学生对象,通过对象查看学生信息 stu_name = input("请输入要查看学生名字:") stu_dict[stu_name].show_student_info() def stu_regiest(): # 学生注册方法,目的是为了生成学生对象 global stu1 #定义学生变量为全局变量 stu_name = input("请输入学生姓名:") stu_sex = input("请输入学生性别:") stu_age = input("请输入学生年龄:") stu_id = input("请输入学生序号") print("1.%s[%sRMB], 2.%s[%sRMB], 3.%s[%sRMB], 4.返回" % (course1.course_name, course1.course_price, course2.course_name, course2.course_price, course3.course_name, course3.course_price)) while True: course_num = input("请选择课程:") if course_num == ‘1‘: stu_course = course1.course_name stu1 = Student(choice_school_obj.school_name, stu_name, stu_sex, stu_age, stu_id, stu_course,course1.course_price) stu_dict[stu_name] = stu1 break elif course_num == ‘2‘: stu_course = course2.course_name stu1 = Student(choice_school_obj.school_name, stu_name, stu_sex, stu_age, stu_id, stu_course, course2.course_price) stu_dict[stu_name] = stu1 break elif course_num == ‘3‘: stu_course = course3.course_name stu1 = Student(choice_school_obj.school_name, stu_name, stu_sex, stu_age, stu_id, stu_course, course3.course_price) stu_dict[stu_name] = stu1 break elif course_num == ‘4‘: break else: continue stu1.show_student_info() def students_view(): #学员视图 while True: print("1.欢迎注册 " "2.返回 " "3.退出") num = input("请选择:") if num == ‘1‘: stu_regiest() #调用学生注册方法并生成学生对象 elif num == ‘2‘: break elif num == ‘3‘: sys.exit() else: continue def teacher_view(): #讲师视图 name = input("请输入讲师姓名:") while True: if dic.get(name) or teachers_dict.get(name): print("欢迎%s讲师".center(50, ‘-‘) % name) elif not dic.get(name) and not teachers_dict.get(name): print("%s讲师不存在" % name) break print("1.查看班级 " "2.查看学员信息 " "3.返回 " "4.退出") print("功能未完善,只能输入Alex,cheng") num = input("请选择:") if num == ‘1‘: if teachers_dict.get(name): teachers_dict[name].show_classroom(name) #查看班级信息 else: print("功能未完善,只能输入Alex,cheng") elif num == ‘2‘: if teachers_dict.get(name): teachers_dict[name].show_student() #查看学生信息 else: print("功能未完善,只能输入Alex,cheng") elif num == ‘3‘: break elif num == ‘4‘: sys.exit() else: continue def school_view(): #学校视图 flag = False while not flag: print("1.创建班级 " "2.创建课程 " "3.雇用讲师 " "4.返回") num = input("请选择:") if num == ‘1‘: choice_school_obj.create_class() elif num == ‘2‘: choice_school_obj.create_course() elif num == ‘3‘: choice_school_obj.hire_teacher() elif num == ‘4‘: flag = True else: continue def main(): global dic # 全局变量 global choice_school_obj dic = {} while True: print("请选择学校".center(50, ‘*‘)) choice_school = input("1.%s, 2.%s, 3.返回, 4.退出" % (s1.school_name, s2.school_name)) if choice_school == ‘1‘: choice_school_obj = s1 # 将对象引用传给choice_school elif choice_school == ‘2‘: choice_school_obj = s2 elif choice_school == ‘3‘: break elif choice_school == ‘4‘: sys.exit() else: continue while True: print("1.学员视图 " "2.讲师视图 " "3.学校管理视图 " "4.返回 " "5.退出") num = input("请选择视图:") if num == ‘1‘: print("欢迎进入学员视图".center(50, ‘*‘)) students_view() elif num == ‘2‘: print("欢迎进入讲师视图".center(50, ‘*‘)) teacher_view() elif num == ‘3‘: print("欢迎进入学校管理视图".center(50, ‘*‘)) school_view() elif num == ‘4‘: break elif num == ‘5‘: sys.exit() else: continue if __name__ == ‘__main__‘: classrooms = {} teachers_dict = {} courses_dict = {} stu_dict = {} s1 = School("老男孩", "北京") #实例化学校 s2 = School("路飞学院", "上海") course1 = Course("技术", "Linux", "11800", "1 year", "北京") course2 = Course("技术", "Python", "6400", "7 month", "北京") #实例化三个课程 course3 = Course("技术", "CCIE", "2400", "4 month", "广州大学城") courses_dict["Linux"] = course1 courses_dict["Python"] = course2 courses_dict["CCEI"] = course3 t1 = Teacher("Alex", "M", "33", "Python", "S13", "Oldboy") t2 = Teacher("cheng", "M", "35", "CCIE", "魔鬼训练营", "Pinginglab") #实例化两个讲师 teachers_dict["Alex"] = t1 teachers_dict["cheng"] = t2 teacher_dict = {"teacher_name": "Alex", "teacher_sex": "M", "teacher_age": "33", "teacher_course": "Python", "teacher_classroom": "S13"} teacher_dict = {"teacher_name": "Eric", "teacher_sex": "M", "teacher_age": "35", "teacher_course": "Python", "teacher_classroom": "S14"} print(s1,s2) main()
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