练习题1.创建Person类，属性有姓名、年龄、性别，创建方法personInfo,打印这个人的信息
class Person():
    def __init__(self,Name,Age,Sex):
        self.Name=Name
        self.Age=Age
        self.Sex=Sex
    def PersonInfo(self):
        print("姓名："+self.Name+"  "
              +"年龄："+str(self.Age)+" "
              +"性别："+self.Sex+" ")
people=Person("Wong",23,"male")
people.PersonInfo()

练习题2.创建Student类，继承Person类，属性有学院college，班级class，重写父类personInfo方法，调用父类方法打印个人信息外，将学生的学院、班级信息也打印出来，
class Person():
    def __init__(self,Name,Age,Sex):
        self.Name=Name
        self.Age=Age
        self.Sex=Sex
    def PersonInfo(self):
        print("姓名："+self.Name+"  "
              +"年龄："+str(self.Age)+" "
              +"性别："+self.Sex+" ")
class Students(Person):
    def __init__(self,Name,Age,Sex,College,Class,Tname,Tage,Tsex,Tcollege,Tprofessional):
        super().__init__(Name,Age,Sex)
        self.College=College
        self.Class=Class
        self.teacher=Teacher(Tname,Tage,Tsex,Tcollege,Tprofessional)
    def PersonInfo(self):
         print("姓名："+self.Name+"  "
              +"年龄："+str(self.Age)+" "
              +"性别："+self.Sex+" "
               +"学院："+self.College+" "
                +"班级："+str(self.Class)+" ")
    def Study(self):
        self.teacher.teachObj()
        print("老师"+self.teacher.Name+"我终于学会了")
Stu=Students("Wong",23,"male","NetWorkring",5)
Stu.PersonInfo()

练习题3.创建Teacher类，继承Person类，属性有学院college，专业professional，重写父类personInfo方法，调用父类方法打印个人信息外，将老师的学院、专业信息也打印出来。
class Teacher(Person):
    def __init__(self,Name,Age,Sex,College,Professional):
        super().__init__(Name,Age,Sex)
        self.College=College
        self.Professional=Professional
    def PersonInfo(self):
        print("姓名："+self.Name+"  "
              +"年龄："+str(self.Age)+" "
              +"性别："+self.Sex+" "
               +"学院："+self.College+" "
                +"专业："+self.Professional+" ")
    def teachObj(self):
        print("今天讲了如何用面向对象设计程序")

练习题4.创建三个学生对象，分别打印其详细信息
stu1=Students("Wong",23,"male","NetWorkring",5,"Zhang",45,"male","NetWorking","Math")
stu2=Students("Yu",22,"male","NetWorking",5,"Zhang",45,"male","NetWorking","Math")
stu3=Students("Rui",20,"male","NetWorking",5,"Zhang",45,"male","NetWorking","Math")
stu1.PersonInfo()
stu2.PersonInfo()
stu3.PersonInfo()
练习题5.创建一个老师对象，打印其详细信息
teacher=Teacher("Zhang",45,"male","NetWorking","Math")
teacher.PersonInfo()
练习题6.学生对象调用Study方法
stu1.Study()
练习题7.将三个学员添加至列表中，通过循环将列表中的对象打印出来，print(Student对象)。
StuL=[stu1,stu2,stu3]
for i in range(0,3):
    print(StuL[i].Name+" "+str(StuL[i].Age)+" "+StuL[i].Sex+" "+StuL[i].College+" "+str(StuL[i].Class))