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 ×îÐÂÎÄÕ : Python

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os.forkº¯Êý´´½¨½ø³ÌµÄ¹ý³ÌÊÇÕâÑùµÄ¡£³ÌÐòÿ´ÎÖ´ÐÐʱ£¬²Ù×÷ϵͳ¶¼»á´´½¨Ò»¸öнø³ÌÀ´ÔËÐгÌÐòÖ¸Áî¡£½ø³Ì»¹¿Éµ÷ÓÃos.fork£¬ÒªÇó²Ù×÷ϵͳн¨Ò»¸ö½ø³Ì¡£¸¸½ø³ÌÊǵ÷ÓÃos.forkº¯ÊýµÄ½ø³Ì¡£¸¸½ø³ÌËù´´½¨µÄ½ø³Ì½Ð×Ó½ø³Ì¡£
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python Ä£¿éµÄ__name__ __main__

ÿ¸öÄ£¿é¶¼ÓÐÒ»¸öÃû³Æ£¬ÔÚÄ£¿éÖпÉÒÔͨ¹ýÓï¾äÀ´ÕÒ³öÄ£¿éµÄÃû³Æ¡£ÕâÔÚÒ»¸ö³¡ºÏÌرðÓÐÓÃ
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#!/usr/bin/python
# Filename: using_name.py
if __name__ == '__main__':
     print 'This program is being run by itself'
else:
     print 'I am being imported from another module'
Êä³ö
$ python using_name.py
This program is being run by itself
$ python
>>> import using_name
I am being imported from another module ......

python self __init__

self
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__init__·½·¨ÔÚÀàµÄÒ»¸ö¶ÔÏó±»½¨Á¢Ê±£¬ÂíÉÏÔËÐС£Õâ¸ö·½·¨¿ÉÒÔÓÃÀ´¶ÔÄãµÄ¶ÔÏó×öһЩÄãÏ£
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#!/usr/bin/python
# Filename: class_init.py
class Person:
    def __init__(self, name):
         self.name = name
    def sayHi(self):
         print 'Hello, my name is', self.name
p = Person('Swaroop')
p.sayHi()
# This short example can also be written as Person('Swaroop').sayHi()
Êä³ö
$ python class_init.py
Hello, my name is Swaroop ......

pythonÄ£¿éѧϰ smtplib Óʼþ·¢ËÍ

ÔÚ»ùÓÚ»¥ÁªÍøµÄÓ¦ÓÃÖУ¬³ÌÐò¾­³£ÐèÒª×Ô¶¯µØ·¢Ë͵ç×ÓÓʼþ¡£È磺һ¸öÍøÕ¾µÄ×¢²áϵͳ»áÔÚÓû§×¢²áʱ·¢ËÍÒ»·âÓʼþÀ´È·ÈÏ×¢²á£»µ±Óû§Íü¼ÇµÇ½ÃÜÂëµÄʱºò£¬Í¨¹ýÓʼþÀ´È¡»ØÃÜÂë¡£smtplibÄ£¿éÊÇpythonÖÐsmtp(¼òµ¥Óʼþ´«ÊäЭÒé)µÄ¿Í»§¶ËʵÏÖ¡£ÎÒÃÇ¿ÉÒÔʹÓÃsmtplibÄ£¿é£¬ÇáËɵķ¢Ë͵ç×ÓÓʼþ¡£ÏÂÃæµÄÀý×ÓÓÃÁ˲»µ½Ê®ÐдúÂëÀ´·¢Ë͵ç×ÓÓʼþ£º
#coding=gbk  
 
import smtplib   
 
smtp = smtplib.SMTP()   
smtp.connect("smtp.yeah.net", "25")   
smtp.login('Óû§Ãû', 'ÃÜÂë')   
smtp.sendmail('from@yeah.net', 'to@21cn.com', 'from: from@yeah.net\r\nTo: to@21cn.com\r\nSubject: this is a email from python demo\r\n\r\nJust for test~_~')   
smtp.quit() 
#coding=gbk
import smtplib
smtp = smtplib.SMTP()
smtp.connect("smtp.yeah.net", "25")
smtp.login('Óû§Ãû', 'ÃÜÂë')
smtp.sendmail('from@yeah.net', 'to@21cn.com', 'from: from@yeah.net\r\nTo: to@21cn.com\r\nSubject: this is a email from python demo\r\n\r\nJust for t ......

python 2.4Óë2.5ÖÐ×Ö·û´®Óëdatetimeת»»µÄÇø±ð

python 2.4ÖÐdatetimeÓÐstrftime·½·¨¶øÎÞstrptime·½·¨
¶øpython2.5ÖÐÕâÁ½¸ö·½·¨¾ùÓУ¬¶øÎҵĿª·¢»·¾³ÕýºÃÊÇpython 2.5£¬¶øÔËÐл·¾³ÔòÊÇpython 2.4
¿ª·¢»·¾³Ïµ÷ÊԺõijÌÐò£¬ÔÚ·þÎñÆ÷ÉϾͲ»run¡£²éÁËÒ»ÏÂpythonµÄ¹Ù·½Îĵµ
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in version 2.5.
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PythonÓïÑÔ
:
test_strptime.py
resulttime =
datetime.datetime.strptime(timepoint, '%Y-%m-
%d
'
) #Õâ¿ÉÊÇpydev×Ô¶¯µ¯³öÀ´µÄ·½·¨
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µÃ´ð°¸ÈçÏ£º
t = time.strptime(timepoint, '%Y-%m-%d')
resulttime = datetime.datetime(*t[:6])
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%a ±¾µØ¼ò»¯ÐÇÆÚÃû³Æ
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%d ÔÂÄÚÖеÄÒ»Ì죨0-31£©
%H 24СʱÖÆСʱÊý£¨0-23£©
%I 12СʱÖÆСʱÊý£¨01-12£©
%j ÄêÄÚµÄÒ»Ì죨001-366£©
%m Ô·ݣ¨01-12£©
%M ·ÖÖÓÊý£¨00=59£©
%p ±¾µØA.M.»òP.M.µÄµÈ¼Û·û
%S Ã루00-59£©
%U Ò»ÄêÖеÄÐÇÆÚÊý£¨00-53£©ÐÇÆÚÌìΪÐÇÆڵĿªÊ¼
%w ÐÇÆÚ£¨0-6£©£¬ÐÇÆÚÌìΪÐÇÆڵĿªÊ¼
%W Ò»ÄêÖеÄÐÇÆÚÊý£¨00-53£©ÐÇÆÚһΪÐÇÆڵĿªÊ¼
%x ......

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