Person.count+=1为什么不能写成self.count+=1 ?
class Person():
count=0
def __init__(self,name):
self.name=name
Person.count+=1 #为什么这里不可以用self.count+=1?
p1=Person('xiaoming')
p2=Person('hanmeimei')
p3=Person('xiaoli')
print(p3.count)
