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    ͼƬÉϸø³öÁËÈý¶Ô×Öĸ“K->M, O->Q, E->G"£¬Í¨¹ý·ÖÎöÖªµÀÕâÊÇÒ»¸ö¼òµ¥µÄ×Ö·ûת»»£¬×ª»»¹æÔòÊÇnew_c=chr(ord(old_c)+2) ³¬¹ý×Ô¶¯»Ø×ª¡£
    ÎÒÃÇ¿ÉÒÔ¿´µ½£¬¸Ã¹ØµÄÍøÖ·Îªhttp://www.pythonchallenge.com/pc/def/map.html¡£ÄÇô°´ÕÕÖ¸µ¼¹Ø¸ø³öµÄ²ßÂÔ£¬Ö»Òª½«mapÌæ»»Îªocr¼´¿Éͨ¹Ø¡£µ«Èç¹û½öÊÇÈç´Ë£¬ÄÇô¾ÍÍêȫƲ¿ªÁËPython£¬¸Ã¹Ø½«³¹³¹µ×µ×µØÍË»¯ÎªÒ»°ãµÄÄԽתÍä¡£
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import string

frm = "abcdefghijklmnopqrstuvwxyz"
to = "cdefghijklmnopqrstuvwxyzab"

data = """g fmnc wms bgblr rpylqjyrc gr zw fylb. rfyrq ufyr amknsrcpq ypc dmp.
bmgle gr gl zw fylbgq glcddgagclr ylb rfyr'q ufw rfgq rcvr gq qm jmle.
sqgle qrpgle.kyicrpylq() gq pcamkkclbcb. lmu ynnjw ml rfc spj."""

print string.translate(data, string.maketrans(frm,to))
    ÔËÐнű¾£¬ÎÒÃǽ«µÃµ½ÏÂÃæÒ»¶ÎÃèÊö£º
  ”i hope you didnt translate it by hand. thats what computers are for.
doing it in by hand is inefficient and that's why this text is so long.
using string.maketrans() is recommended. now apply on the url. “
    
µ±ÎÒÃÇͨ¹ØÖ®ºó£¬Í¨¹ýhttp://www.pythonchallenge.com/pcc/def/ocr.html
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recognize the characters. maybe they are in the book, but MAYBE


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class PythonUtilities:
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