python中如何統計一個類的實例化對象

類中的靜態變量 需要通過類名.靜態變量名 來修改 ；通過對象不能修改

python中如何統計一個類的實例化對象？？

class Person:
      #靜態變量count，用於記錄類被實例化的次數
     count = 0
      
      mind = "有思想"
      animal = "高級動物"
      soul = "有思想"
      def __init__(self ,country ,name ,sex ,age ,height ):
            self.country = country
            self.name = name
            self.sex = sex
            self.age = age
            self.height = height
            #類被實例化時，會自動調用__init__()方法
            #類中的靜態變量 需要類名.靜態變量來修改
            Person.count += 1
            
      def eat(self):
            print("%s在吃飯" %self.name)
      def sleep(self):
            print("%s睡覺" %self.name)
      def  work(self):
            print("%s工作……" %self.name)

p1 = Person("中國","張三","男","42","175")
p2 = Person("中國","李四","男","35","180")
p3 = Person("美國","tanx","女","21","160")
p4 = Person(p1.country,p2.name,p3.sex,p2.age,p3.height)

#通過類名   可以改變類中的靜態變量
print(Person.count)

#通過對象 不能改變類中的靜態變量的值 
p1.count = 8
print(Person.__dict__)

運行結果為：

4
{'__module__': '__main__', 'count': 4, 'mind': '有思想', 'animal': '高級動物', 'soul': '有思想', 

'__init__': <function Person.__init__ at 0x00000000003C1E18>, 'eat': <function Person.eat at 0x000000000317AE18>, 

'sleep': <function Person.sleep at 0x000000000317AEA0>, 'work': <function Person.work at 0x000000000317AF28>, 
'__dict__': <attribute '__dict__' of 'Person' objects>, '__weakref__': <attribute '__weakref__' of 'Person' objects>, '__doc__': None}