我正在嘗試理解這段代碼：

class Person:

'''Represents a person '''

population = 0

def __init__(self,name):

//some statements and population += 1

def __del__(self):

//some statements and population -= 1

def sayHi(self):

'''grettings from person'''

print 'Hi My name is %s' % self.name

def howMany(self):

'''Prints the current population'''

if Person.population == 1:

print 'i am the only one here'

else:

print 'There are still %d guyz left ' % Person.population

rohan = Person('Rohan')

rohan.sayHi()

rohan.howMany()

sanju = Person('Sanjivi')

sanju.howMany()

del rohan # am i doing this correctly?

如何調用析構函數 – 自動或者我必須在上面的“main”程序/類中添加一些東西？

輸出：

Initializing person data

******************************************

Initializing Rohan

******************************************

Population now is: 1

Hi My name is Rohan

i am the only one here

Initializing person data

******************************************

Initializing Sanjivi

******************************************

Population now is: 2

In case Person dies:

******************************************

Sanjivi Bye Bye world

there are still 1 people left

i am the only one here

In case Person dies:

******************************************

Rohan Bye Bye world

i am the last person on earth

Population now is: 0

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總結

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