我只想打印出p1的结果，为什么p2能够自动运行输出？
#coding: utf-8
class Person(object):
__count = 0
def __init__(self,name):
Person.__count = Person.__count + 1
self.name = name
print Person.__count
p1 = Person('Bob')
p2 = Person('Alice')
try:
print p1.__count
except :
print 'AttributeError'输出依然是：
1
2
AttributeError
