class Student:
school = '中北'
def __init__(self, name):
self.name=name
@classmethod
def printschool(cls, a):
print(cls.school)
print(a)
@staticmethod
def add(a, b, c):
print('{0}+{1}+{2}={3}'.format(a, b, c, (a+b+c)))
Student.printschool(4)
Student.add(1,2,3)
s1 = Student('jzh')
s2 = Student
print(s2.school)
s2.add(1,2,3)
print(s1.school) #?1
print(Student.school)
s1.add(1,2,3) #?2
s1.printschool(4) #?3
s2.printschool(4)
实例对象可以调用类属性(?1处)、静态方法(?2处)和类属性(?3处)吗?