题目练习笔记

 

题目一：

 

import pickle
import time
import os
class Byes:
    def save(self):
        avv = time.strftime('%Y-%m-%d %X', time.localtime()).replace(':', '-')#文件命不能使用冒号:
        a = os.getcwd() + '/'#详细地址少了一个/ 所以给她字符串拼接一下
        ab = os.path.join(a, avv) #os模块的路径拼接
        with open(ab,"wb")as f:#类写入文件 用pickle模块 写wb
            pickle.dump(self,f)
            f.close()
        with open(ab,'rb')as t: #读 rb
            ak = pickle.load(t)
            print(ak.__dict__)
            t.close()


class School(Byes):
    '这是一个学校类'
    def __init__(self,name,class_name):
        self.name = name
        self.class_name = class_name
school_1 = School("北大","一班")
school_2 = School("复旦","二班")


class Teacher(Byes):
    '这是一个老师类'
    def __init__(self,name,school):
        self.name = name
        self.school = school

teacher_1 = Teacher("张三",school_1.name)
teacher_2 = Teacher("李四",school_1.name)
teacher_3 = Teacher("王五",school_2.name)

class Course(Byes):
    '这是一个课程类'
    def __init__(self,name,school,teacher,cycle,cost):
        self.name = name
        self.school = school
        self.teacher = teacher
        self.cycle = cycle
        self.cost = cost
coures_1 = Course("linux",school_1.name,teacher_1.name,"一个月","一千元")
coures_2 = Course("python",school_1.name,teacher_1.name,"两个月","两千元")
coures_3 = Course("go",school_2.name,teacher_2.name,"三个月","三千元")
coures_1.save()
##后面是实现用户交互 用户选择课程 自动弹出详细信息 并且生成一个文件