python Ä£¿éµÄ__name__ __main__
ÿ¸öÄ£¿é¶¼ÓÐÒ»¸öÃû³Æ£¬ÔÚÄ£¿éÖпÉÒÔͨ¹ýÓï¾äÀ´ÕÒ³öÄ£¿éµÄÃû³Æ¡£ÕâÔÚÒ»¸ö³¡ºÏÌØ±ðÓÐÓÃ
——¾ÍÈçÇ°ÃæËùÌáµ½µÄ£¬µ±Ò»¸öÄ£¿é±»µÚÒ»´ÎÊäÈëµÄʱºò£¬Õâ¸öÄ£¿éµÄÖ÷¿é½«±»ÔËÐС£
ÿ¸öPythonÄ£¿é¶¼ÓÐËüµÄ__name__£¬Èç¹ûËüÊÇ'__main__'£¬Õâ˵Ã÷Õâ¸öÄ£¿é±»Óû§µ¥¶ÀÔËÐУ¬
ÎÒÃÇ¿ÉÒÔ½øÐÐÏàÓ¦µÄÇ¡µ±²Ù×÷¡£
#!/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
Ïà¹ØÎĵµ£º
̸µ½ÁËPythonÓï¾äµÄÁ½ÖÖÖ´Ðз½Ê½£¬Êµ¼ÊÉÏ£¬ÕâÁ½ÖÖÔËÐз½Ê½ÔÚ±¾ÖÊ ÉÏÊÇÏàͬµÄ£¬ËüÃǶ¼ÊÇÓɽâÊÍÆ÷À´½âÊÍÖ´ÐÐÎÒÃÇÌṩµÄPythonÓï¾ä¡£ ÕâÀïËù˵µÄ½âÊÍÖ´ÐÐÊÇÏà¶ÔÓÚ±àÒëÖ´ÐжøÑԵġ£ÎÒÃÇÖªµÀ£¬Ê¹ÓÃÖîÈç C»òC++Ö®ÀàµÄ±àÒëÐÔÓïÑÔ±àдµÄ³ÌÐò¿ÉÒÔ´ÓÔ´Îļþת»»³É¼ÆËã»úʹÓà µÄ»úÆ÷ÓïÑÔ£¬ ¾Á¬½ÓÆ÷Á¬½ÓºóÐγɶþ½øÖÆ¿ÉÖ´ÐÐÎļþ¡£µ±ÎÒÃÇÔ ......
Python×Ö·û´®²Ù×÷
pythonÈçºÎÅжÏÒ»¸ö×Ö·û´®Ö»°üº¬Êý×Ö×Ö·û
python ×Ö·û´®±È½Ï
ÏÂÃæÁгöÁ˳£ÓõÄpythonʵÏÖµÄ×Ö·û´®²Ù×÷
1.¸´ÖÆ×Ö·û´®
#strcpy(sStr1,sStr2)
sStr1 = 'strcpy'
sStr2 = sStr1
sStr1 = 'strcpy2'
print sStr2
2.Á¬½Ó×Ö·û´®
#strcat(sStr1,sStr2)
sStr1 = 'strcat'
sStr2 = 'appen ......
# -*- coding: cp936 -*-
from email.MIMEText import MIMEText
from email.MIMEMultipart import MIMEMultipart
import smtplib
#´´½¨Ò»¸ö´ø¸½¼þµÄʵÀý
msg = MIMEMultipart()
#¹¹Ô츽¼þ
att = MIMEText(open('e:\\test.txt').read(), 'base64', 'gb2312')
att["Content-Type"] = 'application/ ......
±¾Æª½«½éÉÜpythonÖÐsys, getoptÄ£¿é´¦ÀíÃüÁîÐвÎÊý
Èç¹ûÏë¶Ôpython½Å±¾´«²ÎÊý£¬pythonÖжÔÓ¦µÄargc, argv(cÓïÑÔµÄÃüÁîÐвÎÊý)ÊÇÊ²Ã´ÄØ£¿
ÐèҪģ¿é£ºsys
²ÎÊý¸öÊý£ºlen(sys.argv)
½Å±¾Ãû£º sys.argv[0]
²ÎÊý1£º sys.argv[1]
²ÎÊý2£º sys.argv[2]
test.py
1
import ......
ÒÔÏÂΪÎÒÔÚ´¦ÀíÍøÒ³±àÂëÎÊÌâ¿´µÄÎÄÕ£¬ÏÖÔÚдÅÀ³æ×Ô¼º´¦ÀíÍøÒ³±àÂëÎÊÌâȷʵ±È½ÏÂé·³£¬ÍøÒ³Ò²Ã»Óй涨
Ò»¶¨ÒªÔÚMETAÍ·ÐÅÏ¢Àï´ø±àÂëÐÅÏ¢£¬¶øºÜ¶àÈËдµÄ̽²â±àÂë¾ÍÊÇ»ñÈ¡META£¬ÕâÊDz»¿ÉÈ¡µÄ£¬¶øÓеÄÈËÔòÊÇ·ÖÎöHTTP·µ»ØµÄÊý¾Ý°üÀï±ßµÄ
charset£¬È磨a.headers.getparam('charset')£©£¬¶øHTTP°üûÓй涨һ¶¨Òª´øcharset£¬ËùÒ ......