다음 코드를보고 :
#ContactList类继承自python内置类list
class ContactList(list):
def search(self, name):
matching_contacts = []
for contact in self:
if name in contact.name:
matching_contacts.append(contact)
return matching_contacts
class Contact:
all_contacts = ContactList()#公有类,为所有类的实例对象所共享,属于List的扩展类对象
def __init__(self, name, email):
self.name = name
self.email = email
self.all_contacts.append(self)
c1 = Contact('1 A','1')
c2 = Contact('2 A','1')
c3 = Contact('3 A','1')
[c.name for c in Contact.all_contacts.search('A')]
출력은