python 笔记 之 类 对象的保存

# geter seter 方法


'''
10个学生
id ： 1001
name ：student1
age : 20
grade :59
sex : man
score : 59

'''
import codecs

class StudentMessage():
    __id = int()
    __name = str()
    __score = int()

    def getId(self):
        return self.__id
    def setId(self,id):
        self.__id = id

    def getName(self):
        return self.__name
    def setName(self,name):
        self.__name = name

    def getScore(self):
        return self.__score
    def setScore(self,score):
        self.__score = score

# 对象的保存，保存类
# 类的传递
class Student(object):
    def __init__(self,id,name,score):
        self.id = id
        self.name = name
        self.score = score

class InitStu(object):
    def __init__(self):
        self.student = list()
    def initStuden(self):  # 用来获取数据，这里手动添加
        self.student.append(Student(1001, "aa", 99))
        self.student.append(Student(1002, "ab", 89))
        self.student.append(Student(1003, "ac", 79))
        self.student.append(Student(1004, "ad", 69))
        self.student.append(Student(1005, "ae", 59))
        self.student.append(Student(1006, "af", 49))
    def sort(self):  # 对成绩进行排序
        return sorted(self.student, key=lambda stu: stu.score)
    def writeFile(self,sortStudents):  # 将排序后的结果保存文件
        with codecs.open("sortStudent.txt","w") as f:
            for i in sortStudents:
                f.write("id = {0}".format(i.id))
                f.write("\t")
                f.write("name = {0}".format(i.name))
                f.write("\t")
                f.write("score = {0}".format(i.score))
                f.write("\n")

def main():
    student = InitStu()
    student.initStuden()
    sortStudents =student.sort()
    student.writeFile(sortStudents)

if __name__ == '__main__':
    main()