python类可以任意添加属性

python类可以任意添加属性

class A(object):
    def __init__(self):
        self.name = "zhangsan"
        self.age = 18

a1 = A()
print("类外打印：", a1.name)
print("类外打印：", a1.age)
A.score = 100
print("类外打印：", A.score)

　　

输出