python如何打印一个对象的全部属性

class Teacher(object):

    display = "教师"  # 有公有属性

    def __init__(self,name,age,course,salary):

        self.name = name

        self.age = age

        self.course = course

        self.__salary = salary  # 也有私有属性

# 在定义一个别的类

class Student(object):

    display = "学生"

    def __init__(self,name,sid,classes,score):

        self.name = name

        self.sid = sid

        self.calssed = classes

        self.__score = score

def print_obj(obj):

    "打印对象的所有属性"

    print(obj.__dict__)

t1 = Teacher("Jerry",36,"Python",20000)

s1 = Student('Barry',12,"python01","B")

print_obj(t1)

print_obj(s1)

dict.items() ：用元祖来存放key和vlaue

dict.keys() ： 只包含key

dict.values() ： 只包含value