选课系统作业

1) 程序主功能代码

    def config_path(arg):
        '''
            返回当前系统下的数据文件的存放位置
        '''
        # BASE_DIR = os.path.dirname(os.path.abspath(os.path.abspath(__file__)))
        if platform.system() == "Windows":
            conf_path = (PATH_DIR+'\'+'database'+'\'+arg)
        else:
            conf_path = (PATH_DIR+'/'+'database'+'/'+arg)
        return conf_path
    
    class file_open(object):
        '''
            文件读写操作
        '''
    
        def __init__(self,database,mothed):
            self.db = database
            self.mode = mothed
    
        def write_f(self,info):
            self.info = info
            f = open(self.db,self.mode, encoding='utf-8')
            f.write(json.dumps(self.info,ensure_ascii=False))
    
        def read_f(self):
            f = open(self.db,self.mode, encoding='utf-8')
            info = json.loads(f.read())
            return (info)
    
        def __del__(self):
            pass
    
    class school(file_open):
    
        def __init__(self,school_name):
            self.sc_name = school_name
    
        def get_school(self):
            info = file_open(config_path("db_school.txt"),'r').read_f()
            if self.sc_name in info.keys():
                print((self.sc_name+"校区").center(35,'+'),'
',('{0:1s}{1:10s}{2:10s}'.format('%s'.center(0), '%s'.center(10), '%s'.center(10)) % (info[self.sc_name][0],info[self.sc_name][1],info[self.sc_name][2])))
                # return info[self.sc_name]
            else:
                # print('%s校区不存在'%self.sc_name)
                return "NULL"
    
        def creat_school(self,school_fullname,school_address,school_city):
            self.sc_fname = school_fullname
            self.sc_address = school_address
            self.sc_city = school_city
            info = {self.sc_name:[self.sc_fname,self.sc_address,self.sc_city]}
            print("创建学校".center(45,'+'),'
',('{0:1s}{1:10s}{2:10s}{3:10s}'.format('%s'.center(0), '%s'.center(10),'%s'.center(10), '%s'.center(10)) % (self.sc_name,self.sc_fname,self.sc_address,self.sc_city)))
            # file_open(config_path("db_school.txt"),'a+').write_f(info)
            r_info = file_open(config_path("db_school.txt"),'r+').read_f()
            if self.sc_name in r_info.keys():
                print("修改%s信息"%self.sc_fname)
            else:
                r_info.update(info)
                file_open(config_path("db_school.txt"), 'w+').write_f(r_info)
    
    class course(school):
        def __init__(self,course_name,school_name):
            super(course,self).__init__(school_name)
            self.co_name = course_name
    
        '''
        预留课程创建权限
        '''
        def creat_course(self,course_semeste,course_time,course_price,course_teacher):
            self.co_semeste = course_semeste
            self.co_time = course_time
            self.co_price = course_price
            self.co_teacher = course_teacher
            # 'SH':[['go','3期','2017.8.1','8000','luo']]
            info = {self.sc_name:[[self.co_name,self.co_semeste,self.co_time,self.co_price,self.co_teacher]]}
            if school(self.sc_name).get_school() =="NULL":
                print("校区不存在！")
    
    
        def get_course(self):
            # print(info["SH"][0])  >> ['go', '3期','2017.8.1', '8000', 'luo']
            info = file_open(config_path("db_course.txt"), 'r').read_f()
            for n in filter(lambda x: self.co_name in x, [x for x in info[self.sc_name]]):
                return n
    
        def classes_info(self):
            info = self.get_course()
            self.get_school()
            tip = ('{0:10s}{1:10s}{2:10s}{3:10s}'.format('课程'.center(10),'学期'.center(10),'开课时间'.center(10),'导师'.center(10)))
            msg = ('{0:10s}{1:10s}{2:10s}{3:10s}'.format('%s'.center(10),'%s'.center(10),'%s'.center(10),'%s'.center(10))%(info[0],info[1],info[2],info[4]))
            print(("%s班级"%self.co_name).center(45,'-'),'
',tip,'
',msg)
            return info
    
    class people(course):
    
        def __init__(self,school_name):
            # super(people,self).__init__(school_name)
            self.sc_name = school_name
    
    
        def new_one(self,p_name,p_age,p_passwd,p_role):
            self.p_name = p_name
            self.p_age = p_age
            self.p_passwd = p_passwd
            self.p_role = p_role
            info = file_open(config_path("db_members.txt"), 'r').read_f()
            old_p = info[self.sc_name][p_role]   #现有的学员/导师
            new_p = [self.p_name, self.p_age, self.p_passwd]    #新学员/导师
            old_p.append(new_p)
            info[self.sc_name][p_role] = old_p
            file_open(config_path("db_members.txt"), 'w').write_f(info)
    
        def get_msg(self,course_name):
            super(people,self).__init__(course_name)
            info = file_open(config_path("db_members.txt"), 'r').read_f()
    
    def goods_list(username):
        menus_tmp = [] #临时存放货物类别
        goods = json.loads(goodsinfo)
    
        while True:
            #打印一级目录
            print("Credit card mall!".center(60, "-"))
            for k in enumerate(goods):
                print(k[0], '.', k[1])
                print('	')
                menus_tmp.append(k)
                for j in enumerate(goods[k[1]]):
                    print('	', j[0], '.', j[1])
            try:
                i = input("一输入你想购买的商品类别编号:")
                while True:
                    if i.isdigit():
                        i = int(i)
                        if i >= 0 and i <= len(goods.items()) - 1:
                            break
                        else:
                            i = input("超出商品列表范围！")
                        continue
                    else:
                        i = input("请输入数字！")
                    continue
            except ValueError as e:
                print(e)
                pass
            # 打印二级商品栏目
            s = goods.get(menus_tmp[i][1])
            shopping_car = []
            for j in range(len(s)):
                print(j, s[j])
            k = int(input("三输入你想购买的商品编号:"))
            if k not in range(len(s)):
                print("输入的数值不在商品编号范围内！")
                pass
            else:
                n = int(input("四请输入你想要购买的商品数量："))
                cost = s[k][1] * n
                message=("您购买 %s ,单价 %0.2f  数量为%d ；共计花费：%0.2f" % (s[k][0], s[k][1], n, cost))
                settings.make_transaction(username, 'withdraw', cost,message)
                print(message)
            stat = input("重新请输入y，退出请输入n")
            if stat == 'n':
                print("欢迎下次光临！")
                break
            else:
                continue
        return "购物愉快！"

2)注册 

    F:Python35python.exe F:/mologa-workspace/week_4/choose_lesson/core/classes.py
    ~~~~~~~~~~~~~~~~~~~欢迎来到oldboy学院~~~~~~~~~~~~~~~~~~~
       1.登录      2.注册      3.关闭   
    输入选项序号：2
        BJ        FJ        SH    
    输入校区：BJ
    请选择角色：[1.教师 2.学生]2
    请输入用户名：lisi
    请输入年龄：45
    请输入密码：li123
       1.登录      2.注册      3.关闭   
    输入选项序号：1
    请输入用户名：lisi
    请输入密码：lisi123
    密码错误！
    请输入用户名：lisi
    请输入密码：li123
       1.选课      2.成绩     3.上课纪录     3.关闭   
    请输入功能序号：1
        课程        学期       开课时间       学费        导师    
        go        3期        2017.10.1        8000        luo    
        linux        16期        2017.6.1        9000        alex    
        python        13期        2017.8.1        9500        alex 

3) 系统会根据登录用户名来判断属性[student,teacher]决定功能

    -------------------------teacher----------------------
    F:Python35python.exe F:/mologa-workspace/week_4/choose_lesson/core/classes.py
    ~~~~~~~~~~~~~~~~~~~欢迎来到oldboy学院~~~~~~~~~~~~~~~~~~~
       1.登录      2.注册      3.关闭   
    输入选项序号：alex
       1.登录      2.注册      3.关闭   
    输入选项序号：1
    请输入用户名：alex
    请输入密码：alex123
      1.负责班级     2.关闭   
    请输入功能序号：1
        课程        学期       开课时间   
        linux        16期        2017.6.1    
        python        13期        2017.8.1    
      1.负责班级     2.关闭   
    请输入功能序号：2
    欢迎下次光临！
            ……

    -------------------------student----------------------
    F:Python35python.exe F:/mologa-workspace/week_4/choose_lesson/core/classes.py
    ~~~~~~~~~~~~~~~~~~~欢迎来到oldboy学院~~~~~~~~~~~~~~~~~~~
       1.登录      2.注册      3.关闭   
    输入选项序号：1
    请输入用户名：miao
    请输入密码：miao123
       1.选课      2.成绩     3.上课纪录     3.关闭   
    请输入功能序号：1
        课程        学期       开课时间       学费        导师    
        go        3期        2017.10.1        8000        luo    
        linux        16期        2017.6.1        9000        alex    
        python        13期        2017.8.1        9500        alex    
    请选择课程：linux
    ---------miao选择linux,扣款9000----------
        linux        16期        2017.6.1        9000        alex    
       1.选课      2.成绩     3.上课纪录     3.关闭   
    请输入功能序号：2
    python 85
    go 100
       1.选课      2.成绩     3.上课纪录     3.关闭   
    请输入功能序号：3
    python 5
    go 2
       1.选课      2.成绩     3.上课纪录     3.关闭   
    请输入功能序号：4
    欢迎再次光临！
    
    Process finished with exit code 1

总结备注

    这次作业持续了很久，数据表设计很久还是没有很好的办法，最后还是用字典存储，没有用pickle而是用json序列化，因为这样我能随时看数据结构和修改，些许功能暂未实现，希望自己能坚持学习。
    学习：
    	1.class类中是方法和功能的集合
    	2.选项类别可以用字典这么写，避免代码冗长和繁杂
    	def login(self):
            menu = u'''
            ------- 欢迎进入管理视图 ---------
                33[32;1m 1.  校区管理
                2.  讲师管理
                3.  学员管理
                4.  课程管理
                5.  返回
                33[0m'''
            menu_dic = {
                '1': Admin_view.school_manager,
                '2': Admin_view.teacher_manager,
                '3': Admin_view.student_manager,
                '4': Admin_view.course_manager,
                '5': "logout",
            }
            username = input("输入用户名:").strip()
            password = input("输入密码:").strip()
            auth = Admin_view.auth(self,username,password)
            if auth:
                exit_flag = False
                while not exit_flag:
                    print(menu)
                    option = input("请选择：").strip()
                    if option in menu_dic:
                        if int(option) == 5:
                            exit_flag = True
                        else:
                            print(menu_dic[option])
                            menu_dic[option](self)
                    else:
                        print("33[31;1m输入错误，重新输入33[0m")