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1¡¢re¶ÔÏóµÄ·½·¨
match    Match a regular expression pattern to the beginning of a string.
search   re.search(pattern, string, flags) flags:re.I re.M re.X re.S re.L re.U
sub      Substitute occurrences of a pattern found in a string.
subn     Same as sub, but also return the number of substitutions made.
split    Split a string by the occurrences of a pattern.
findall  Find all occurrences of a pattern in a string.
finditer Return an iterator yielding a match object for each match.
iter = re.finditer("23", "123423523")
for i in iter:
print i.span() 
compile  ½«Ò»¸öpattern±àÒë³ÉÒ»¸öRegexObject.
       re¶ÔÏóµÄʹÓ÷½·¨£¬reobject = re.complie(pattern)£¬´Óreobject»ñµÃpatternµÄ·½·¨£¬Ê¹ÓÃreobject.patternÊôÐÔ
       Èç¹ûÒ»¸öreobjectÒª¶à´ÎʹÓã¬×îºÃʹÓÃcompile·½·¨Ìá¸ßÐÔÄÜ£¬·ñÔò¿ÉÒÔÖ±½Ó°´ÕâÖÖ·½Ê½Ê¹Óã¬re.search(pattern, string)
purge    Clear the regular expression cache.
escape   Backslash all non-alphanumerics in a string.
2¡¢ÒªÊ¹group(s)·½·¨£¬Ó¦¸ÃÔÚpatternÖжÔÏëÒªÔÚtuplesÖеIJ¿·Ö¼ÓÉÏÀ¨ºÅ£¬ÀýÈç“123-45”£¬ÏëÆ¥ÅäÕâ¸östring£¬µ«ÊÇÖ»Ïë»ñµÃǰÈý¸öÊý×Ö£¬Ôò¿ÉÒÔʹÓÃÕâÑùµÄpattern,"(\d{3})-\d{2}"
,×¢ÒâÇ°ÃæÊ¹ÓÃÁËÀ¨ºÅ£¬ÔÙµ÷ÓÃgroups·½·¨»áµÃµ½tuples,("123",)
¡£group(s)ÊÇSRE_Match object µÄ·½·¨£¬Í¨³£Ê¹Ó÷½·¨Îªreobject.search(string).group(s)
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    (?:)²»·ÅÈëgroupsÖÐ
    (?iLmsux) Ϊpattern¼ÓÈëI,L,M,S,U,X±êÖ¾
    (?P<name>) ΪgroupµÄÒ»Ïî¼ÓÈë±ðÃû
    (?P=name) Æ¥ÅäÔÚ֮ǰÓÃname±íʾµÄ²¿·Ö±í´ïʽËùÆ¥Åäµ½µÄÄÚÈÝ
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# 033
class Person:
age = 22
def sayHello(self): # ·½·¨Ó뺯ÊýµÄÇø±ðÔÚÓÚÐèÒªÒ»¸öself²ÎÊý
print 'Hello!'
# end of def
# end of class # ÕâÊÇÎÒÁ¼ºÃµÄ±à³Ì·ç¸ñ
p = Person()
print p.age
p.sayHello()

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22
Hello! ......

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# 038
def getAge():
age = input('Input your age:')
if (age < 0 or age > 160):
raise 'BadAgeError', 'It is impossible!!!!!'
# end of if
return age
# ......

Python Firewall Win32 (pyfw

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