1 class Student:
2 def __init__(self, name, age):
3 self.name = name
4 self.age = age
5 def eat(self):
6 print(self.name+'在吃饭')
7
8 stu1 = Student('张三', 20)
9 stu2 = Student('李四', 30)
10 print(id(stu1))
11 print(id(stu2))
12 print('-----为stu1绑定性别属性-----')
13 stu1.gender = '女'
14 print(stu1.name, stu1.age, stu1.gender)
15 print(stu2.name, stu2.age)
16 Student.gender = '男'
17 print(stu1.name, stu1.age, stu1.gender)
18 print(stu2.name, stu2.age, stu2.gender)
19
20 stu1.eat()
21 stu2.eat()
22
23 print('-----为stu1绑定show方法-----')
24 def show():
25 print('定义在类之外的，成为函数')
26 stu1.show = show
27 stu1.show()
