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pythonÖеÄÀà½Ðclass object,ÀàµÄʵÀý½Ðinstance object.
Àà Class Objects
ÀàÓµÓÐÁ½ÖÖ²Ù×÷,1.ÀàÊôÐÔ attribute references 2.ʵÀý»¯instantiation
1.ÀàÊôÐÔ¾ÍÏ൱ÓÚרÊôÓÚÒ»¸öÀàµÄ±äÁ¿(¼´Ä³Ð©ÓïÑÔÖеÄÀàµÄ¾²Ì¬¹«¹²±äÁ¿static public),ʹÓ÷½·¨ÊÇ:ÀàÃû³Æ.ÀàÊôÐÔÃû³Æ
2.ʵÀý»¯ÔòÊÇ´´½¨Ò»¸öÀàµÄʵÀýµÄ·½·¨,ʹÓ÷½·¨ÊÇ:ÀàÃû³Æ()
ÔÚʹÓÃʵÀý»¯·½·¨ºó,½«»á´´½¨Ò»¸ö¿ÕµÄÀàʵÀý,Ò»°ãµÄpythonÀàµÄ¶¨ÒåÖлáÓÐÒ»¸öÌØÊâµÄ·½·¨À´³õʼ»¯,Õâ¸ö·½·¨¾ÍÊÇ__init__(),µ±µ÷ÓÃÁËÀàµÄʵÀý»¯·½·¨ºó,__init__()·½·¨»áÁ¢¿Ì±»Õâ¸öÀàµÄʵÀýµ÷ÓÃ.Ò²¾ÍÊÇ˵,__init__()²»Êǹ¹Ô캯Êý,¶øÊÇÒ»¸öÆÕͨµÄ·½·¨.
ÀàµÄʵÀý Instance Objects
ÀàµÄʵÀýÖ»ÓµÓÐÒ»ÖÖ²Ù×÷,Õâ¾ÍÊÇ 1.ÊôÐÔµ÷Óà attribute references.
ÊôÐÔµ÷ÓÃÖ¸ 1.Êý¾ÝÊôÐÔ 2.·½·¨
Êý¾ÝÊôÐÔ
Êý¾ÝÊôÐÔ²»ÐèÒªÔ¤Ïȶ¨Òå!µ±Êý¾ÝÊôÐÔ³õ´Î±»Ê¹ÓÃʱ,Ëü¼´±»´´½¨²¢¸³Öµ(they spring into existence when they are first assigned to) ¿´ÏÂÃæµÄÀý×Ó
>>> class test:
...  pass
...  t=test()
...  t.name='notus'
...  print t.name
...
notus
ÎÒÃÇÔÚÀàTestÖв¢Ã»Óж¨ÒånameÕâ¸öÊý¾ÝÊôÐÔ,µ«ÊÇÔÚ´úÂëÖÐÈ´¿ÉÒÔÖ±½ÓʹÓÃ,Õâ¾ÍÊÇÊý¾ÝÊôÐÔ.
ÈçºÎ¶¨ÒåÀàµÄÊôÐÔ
ÏÖÔÚ,Å׿ª¹ãÒåÉ϶ÔÊôÐÔattributeµÄ½âÊÍ,ÔÚʵ¼Ê±à³ÌÖо­³£ÓõÄÊôÐÔÕâ¸ö´Ê,ÔÚpythonµÄclassÖÐÓÐÁ½ÖÖÊôÐÔ:ÀàÊôÐÔ,Êý¾ÝÊôÐÔ.(´ó¶àÊý±à³ÌÓïÑÔ¶¼ÓÐÕâÑùÁ½ÖÖÊôÐÔ).ÀàÊôÐÔÊôÓÚÀà,Êý¾ÝÊôÐÔÊôÓÚÀàµÄʵÀý.ÎÒÃǼÙÉèÓÐÀàTest,ÔòÒ»°ãÕâÁ½ÖÖÊôÐÔµÄÓ÷¨ÊÇ
>>> class test:
...  pass
...  t=test()
...  t.name='notus'
...  print t.name
...  test.mode='auto'
...  print test.mode
...
notus
auto
Êý¾ÝÊôÐÔnameºÍÀàÊôÐÔmode¾ùûÓÐÔÚÀàÖб»¶¨Òå,ÄãÒª×öµÄ,Ö»ÊÇÔÚÐèÒªµÄʱºòʹÓÃËûÃǼ´¿É.
Æäʵ´ó¼Ò¿´µ½ÀàÊôÐÔºÍÊý¾ÝÊôÐÔµÄ×îÖ±¹ÛµÄÇø±ðÊÇÊý¾ÝÊôÐÔ£¨¶¨ÒåµÄÀàʵÀý£¬ÀàµÄʵÀý»¯£©Ê¹Ó÷½·¨ÊÇ:ÀàÃû³Æ()——t=test()£¬ÀàÊôÐÔÀàÃû³Æ.ÀàÊôÐÔÃû³Ætest.mode¡£
ÈçºÎÔ¤ÏȸøÊôÐÔ¸³Öµ
class Test:
def ask(theInstance):
       theInstance.name='notus'
       Test.mode='auto'
##print Test.mode
t=Test()
##print t.name
t.ask()
print Test.mode
print t.name
ÀàTestÓз½·¨ask.×¢Òâ¿´³ÌÐòÖб»×¢Ê͵ôµÄ


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#!/usr/bin/python
#coding=utf-8
import Image,ImageDraw,ImageFont,os,string,random,ImageFilter
def initChars():
"""
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" Maintainer: Bram Moolenaar <Bram@vim.org>
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