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选课系统作业

时间:2017-11-02 18:20:56      阅读:228      评论:0      收藏:0      [点我收藏+]

标签:and   进入   ber   members   文件读写   rate   sdi   __del__   conf   

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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,‘+‘),‘\n‘,(‘{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,‘+‘),‘\n‘,(‘{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,‘-‘),‘\n‘,tip,‘\n‘,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(‘\t‘)
                menus_tmp.append(k)
                for j in enumerate(goods[k[1]]):
                    print(‘\t‘, 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:\Python35\python.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:\Python35\python.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:\Python35\python.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 ---------
                \033[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
                \033[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("\033[31;1m输入错误,重新输入\033[0m")

  

选课系统作业

标签:and   进入   ber   members   文件读写   rate   sdi   __del__   conf   

原文地址:http://www.cnblogs.com/mologa-jie/p/7773213.html

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