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mybag1

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[½»Á÷] (Ô­´´)½«unicode±àÂëµÄtxtÎļþתΪutf-8±àÂë ÒÑÓÐ2È˲ÎÓë

# coding=UTF-8
import string
import codecs
def changecode():
    tt=codecs.open('c:\\111.txt','rb','utf-16')  #111.txtΪunicode±àÂëÎļþ£¬ÒÔunicode±àÂë´ò¿ª£¬utf-16=unicode
    mm=open('c:\\123.txt','wb')
    ff=tt.readlines()
   
    for i in ff:
        print i
        mm.write(i.encode('UTF-8'))
        mm.write('123')  #Ìí¼Ó¡®123¡¯ÊÇΪÁËÅжÏÊÇ·ñ½«ÒÔÉÏÎļþÈ«²¿×ªÍꡣʹÓÃÖз¢ÏÖ£¬µÚÒ»´ÎÓÃʱ£¬³£³£Ö»×ªÁËÒ»²¿·Ö£¬Ã»µ½½áÊø£¬ÔÙÔËÐÐÒ»´Î¾ÍÄÜȫתΪ£¬ÎÒҲûÕÒµ½¾ßÌåÔ­Òò£¬ËùÒÔ¼ÓÁËÕâôһÌõÅжϡ£
    tt.close
    mm.close

def checkyes():
    nn=open('c:\\123.txt','rb')
    nnff=nn.readlines()
    nn.close()
    if nnff[-1]=='123':
        print "finish"
   
changecode()
checkyes()


¶ÔcodecsµÄ½âÊ͹©Ñ§Ï°Ê¹Ó㺸ýâÊÍת×Ô£ºhttp://blog.csdn.net/zhaoweikid/article/details/1642015
python¶Ô¶à¹úÓïÑԵĴ¦ÀíÊÇÖ§³ÖµÄºÜºÃµÄ£¬Ëü¿ÉÒÔ´¦ÀíÏÖÔÚÈÎÒâ±àÂëµÄ×Ö·û£¬ÕâÀïÉîÈëµÄÑо¿Ò»ÏÂpython¶Ô¶àÖÖ²»Í¬ÓïÑԵĴ¦Àí¡£
    ÓÐÒ»µãÐèÒªÇå³þµÄÊÇ£¬µ±pythonÒª×ö±àÂëת»»µÄʱºò£¬»á½èÖúÓÚÄÚ²¿µÄ±àÂ룬ת»»¹ý³ÌÊÇÕâÑùµÄ£º
        Ô­ÓбàÂë -> ÄÚ²¿±àÂë -> Ä¿µÄ±àÂë
    pythonµÄÄÚ²¿ÊÇʹÓÃunicodeÀ´´¦ÀíµÄ£¬µ«ÊÇunicodeµÄʹÓÃÐèÒª¿¼ÂǵÄÊÇËüµÄ±àÂë¸ñʽÓÐÁ½ÖÖ£¬Ò»ÊÇUCS-2£¬ËüÒ»¹²ÓÐ65536¸öÂë룬ÁíÒ»ÖÖÊÇUCS-4£¬ËüÓÐ2147483648g¸öÂëλ¡£¶ÔÓÚÕâÁ½ÖÖ¸ñʽ£¬python¶¼ÊÇÖ§³ÖµÄ£¬Õâ¸öÊÇÔÚ±àÒëʱͨ¹ý--enable-unicode=ucs2»ò--enable-unicode=ucs4À´Ö¸¶¨µÄ¡£ÄÇôÎÒÃÇ×Ô¼ºÄ¬Èϰ²×°µÄpythonÓеÄʲô±àÂëÔõôÀ´È·¶¨ÄØ£¿ÓÐÒ»¸ö°ì·¨£¬¾ÍÊÇͨ¹ýsys.maxunicodeµÄÖµÀ´Åжϣº

import sys
print sys.maxunicode

    Èç¹ûÊä³öµÄֵΪ65535,ÄÇô¾ÍÊÇUCS-2,Èç¹ûÊä³öÊÇ1114111¾ÍÊÇUCS-4±àÂë¡£
ÎÒÃÇÒªÈÏʶµ½Ò»µã£ºµ±Ò»¸ö×Ö·û´®×ª»»ÎªÄÚ²¿±àÂëºó£¬Ëü¾Í²»ÊÇstrÀàÐÍÁË£¡ËüÊÇunicodeÀàÐÍ£º

a = "·ç¾í²ÐÔÆ"
print type(a)
b = a.unicode(a, "gb2312" )
print type(b)

Êä³ö£º



Õâ¸öʱºòb¿ÉÒÔ·½±ãµÄÈÎÒâת»»ÎªÆäËû±àÂ룬±ÈÈçת»»Îªutf-8:

c = b.encode("utf-8" )
print c

cÊä³öµÄ¶«Î÷¿´ÆðÀ´ÊÇÂÒÂ룬ÄǾͶÔÁË£¬ÒòΪÊÇutf-8µÄ×Ö·û´®¡£
    ºÃÁË£¬¸Ã˵˵codecsÄ£¿éÁË£¬ËüºÍÎÒÉÏÃæËµµÄ¸ÅÄîÊÇÃÜÇÐÏà¹ØµÄ¡£codecsרÃÅÓÃ×÷±àÂëת»»£¬µ±È»£¬Æäʵͨ¹ýËüµÄ½Ó¿ÚÊÇ¿ÉÒÔÀ©Õ¹µ½ÆäËû¹ØÓÚ´úÂë·½ÃæµÄת»»µÄ£¬Õâ¸ö¶«Î÷ÕâÀï²»Éæ¼°¡£

#-*- encoding: gb2312 -*-
import codecs, sys

print '-'*60
# ´´½¨gb2312±àÂëÆ÷
look  = codecs.lookup("gb2312" )
# ´´½¨utf-8±àÂëÆ÷
look2 = codecs.lookup("utf-8" )

a = "ÎÒ°®±±¾©Ìì°²ÃÅ"

print len(a), a
# °Ña±àÂëΪÄÚ²¿µÄunicode, µ«ÎªÊ²Ã´·½·¨ÃûΪdecodeÄØ£¬ÎÒµÄÀí½âÊǰÑgb2312µÄ×Ö·û´®½âÂëΪunicode
b = look.decode(a)
# ·µ»ØµÄb[0]ÊÇÊý¾Ý£¬b[1]Êdz¤¶È£¬Õâ¸öʱºòµÄÀàÐÍÊÇunicodeÁË
print b[1], b[0], type(b[0])
# °ÑÄÚ²¿±àÂëµÄunicodeת»»Îªgb2312±àÂëµÄ×Ö·û´®£¬encode·½·¨»á·µ»ØÒ»¸ö×Ö·û´®ÀàÐÍ
b2 = look.encode(b[0])
# ·¢ÏÖ²»Ò»ÑùµÄµØ·½Á˰ɣ¿×ª»»»ØÀ´Ö®ºó£¬×Ö·û´®³¤¶ÈÓÉ14±äΪÁË7! ÏÖÔڵķµ»ØµÄ³¤¶È²ÅÊÇÕæÕýµÄ×ÖÊý£¬Ô­À´µÄÊÇ×Ö½ÚÊý
print b2[1], b2[0], type(b2[0])
# ËäÈ»ÉÏÃæ·µ»ØÁË×ÖÊý£¬µ«²¢²»Òâζ×ÅÓÃlenÇób2[0]µÄ³¤¶È¾ÍÊÇ7ÁË£¬ÈÔÈ»»¹ÊÇ14£¬½ö½öÊÇcodecs.encode»áͳ¼Æ×ÖÊý
print len(b2[0])

    ÉÏÃæµÄ´úÂë¾ÍÊÇcodecsµÄʹÓã¬ÊÇ×î³£¼ûµÄÓ÷¨¡£ÁíÍ⻹ÓÐÒ»¸öÎÊÌâ¾ÍÊÇ£¬Èç¹ûÎÒÃÇ´¦ÀíµÄÎļþÀïµÄ×Ö·û±àÂëÊÇÆäËûÀàÐ͵ÄÄØ£¿Õâ¸ö¶ÁÈ¡½øÐÐ×ö´¦ÀíÒ²ÐèÒªÌØÊâµÄ´¦ÀíµÄ¡£codecsÒ²ÌṩÁË·½·¨.

#-*- encoding: gb2312 -*-
import codecs, sys

# ÓÃcodecsÌṩµÄopen·½·¨À´Ö¸¶¨´ò¿ªµÄÎļþµÄÓïÑÔ±àÂ룬Ëü»áÔÚ¶ÁÈ¡µÄʱºò×Ô¶¯×ª»»ÎªÄÚ²¿unicode
bfile = codecs.open("dddd.txt", 'r', "big5" )
#bfile = open("dddd.txt", 'r')

ss = bfile.read()
bfile.close()
# Êä³ö£¬Õâ¸öʱºò¿´µ½µÄ¾ÍÊÇת»»ºóµÄ½á¹û¡£Èç¹ûʹÓÃÓïÑÔÄÚ½¨µÄopenº¯ÊýÀ´´ò¿ªÎļþ£¬ÕâÀï¿´µ½µÄ±Ø¶¨ÊÇÂÒÂë
print ss, type(ss)

[ Last edited by jjdg on 2012-3-2 at 03:06 ]
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lurencyj

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2Â¥2012-03-01 18:10:17
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lt292

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Holy Shit

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