\u5927\u5199\u53d6\u53cd\\D\u8868\u793a\u4e0d\u8981\u6570\u5b57<\/p>\n
<\/p>\n
import re<\/p>\n
a = ‘python123python666python888’<\/p>\n
print(re.findall(‘python’,a)) #\u8fd4\u56de\u503c\u662f\u4e00\u4e2a\u5217\u8868<\/p>\n
print(re.findall(‘123’,a))<\/p>\n
print(re.findall(‘999’,a))\u00a0 #\u5982\u679c\u5339\u914d\u503c\u4e0d\u5b58\u5728\u8fd4\u56de\u4e00\u4e2a\u5b54\u5217\u8868<\/p>\n
<\/p>\n
a = ‘python123python666python888’<\/p>\n
>>> import re<\/p>\n
>>> re.match(‘python’,a)<\/p>\n
<_sre.SRE_Match object; span=(0, 6), match=’python’><\/p>\n
>>> re.match(‘python123′,a)<\/p>\n
<_sre.SRE_Match object; span=(0, 9), match=’python123’><\/p>\n
>>> bb = re.match(‘python’,a)<\/p>\n
>>> bb.group() #group\u67e5\u770b\u5339\u914d\u5230\u7684\u5b57\u7b26<\/p>\n
‘python’<\/p>\n
>>> bb.span()\u00a0 #span()\u67e5\u770b\u5339\u914d\u5b57\u7b26\u4e0b\u6807\u53d6\u503c\u533a\u95f4<\/p>\n
(0, 6)<\/p>\n
>>> print(re.match(‘python’,a))<\/p>\n
<_sre.SRE_Match object; span=(0, 6), match=’python’><\/p>\n
>>> print(bb)<\/p>\n
<_sre.SRE_Match object; span=(0, 6), match=’python’><\/p>\n
>>><\/p>\n
<\/p>\n
<\/p>\n
<\/p>\n
re.match<\/b>\u4e0e<\/b>r<\/b>e.search<\/b>\u7684<\/b>\u533a\u522b<\/b>\uff1a<\/b><\/p>\n
re.match<\/b>\u53ea\u5339\u914d\u5b57\u7b26\u4e32\u7684\u5f00\u59cb<\/b>\u4f4d\u7f6e\u627e<\/b>\uff0c\u5982\u679c\u5b57\u7b26\u4e32\u5f00\u59cb\u4e0d\u7b26\u5408\u6b63\u5219\u8868\u8fbe\u5f0f\uff0c\u5219\u5339\u914d\u5931\u8d25\uff0c<\/b><\/p>\n
re.search<\/b>\uff1a<\/b>\u5339\u914d\u6574\u4e2a\u5b57\u7b26\u4e32\uff0c<\/b>\u5982\u679c\u4e00\u76f4\u627e\u4e0d\u5230\u5219\uff0c\u8fd4\u56de\u662f\u7a7a\u7684\uff0c\u6ca1\u6709\u7ed3\u679c<\/b><\/p>\n
<\/p>\n
<\/p>\n
<\/p>\n
<\/p>\n
\u5143\u5b57\u7b26\uff1a<\/p>\n
. \u5339\u914d\u4efb\u610f\u4e00\u4e2a\u5b57\u7b26\uff08\u9664\u4e86\\n\uff09<\/p>\n
[] \u5339\u914d[]\u4e2d\u5217\u4e3e\u7684\u5b57\u7b26<\/p>\n
\\d \u5339\u914d\u6570\u5b57\uff0c\u53730-9<\/p>\n
\\D \u5339\u914d\u975e\u6570\u5b57\uff0c\u5373\u4e0d\u662f\u6570\u5b57<\/p>\n
\\s \u5339\u914d\u7a7a\u767d\uff0c\u5373\u7a7a\u683c\uff0ctab\u952e<\/p>\n
\\S \u5339\u914d\u975e\u7a7a\u767d<\/p>\n
\\w \u5339\u914d\u5355\u8bcd\u5b57\u7b26\uff0c\u5373a-z\uff0cA-Z\uff0c0-9\uff0c_<\/p>\n
\\W \u5339\u914d\u975e\u5355\u8bcd\u5b57\u7b26<\/p>\n
<\/p>\n
<\/p>\n
\u4ee3\u8868\u6570\u91cf\u7684\u5143\u5b57\u7b26\uff1a<\/p>\n
[*] \u661f\u53f7\u5339\u914d\u524d\u4e00\u4e2a\u5b57\u7b26\u51fa\u73b00\u6b21\u6216\u8005\u65e0\u9650\u6b21\uff0c\u53ef\u6709\u53ef\u65e0<\/p>\n
+\u00a0 \u52a0\u53f7\u5339\u914d\u524d\u4e00\u4e2a\u5b57\u7b26\u51fa\u73b01\u6b21\u6216\u8005\u65e0\u9650\u6b21\uff0c\u5373\u81f3\u5c11\u6709\u4e00\u6b21<\/p>\n
?\u00a0 \u95ee\u53f7\u5339\u914d\u524d\u4e00\u4e2a\u5b57\u7b26\u51fa\u73b01\u6b21\u6216\u80050\u6b21\uff0c\u5373\u8981\u4e48\u6709\u4e00\u6b21\uff0c\u8981\u4e48\u6ca1\u6709\u3002<\/p>\n
{m}\u00a0 \u5927\u62ec\u53f7\u52a0m\uff0c\u5339\u914d\u524d\u4e00\u4e2a\u5b57\u7b26\u51fa\u73b0m\u6b21<\/p>\n
{m,}\u00a0 \u5927\u62ec\u53f7\u52a0m\uff0c\u5339\u914d\u524d\u4e00\u4e2a\u5b57\u7b26\u81f3\u5c11\u51fa\u73b0m\u6b21<\/p>\n
{m,n} \u5927\u62ec\u53f7\u52a0m,n\uff0c\u5339\u914d\u524d\u4e00\u4e2a\u5b57\u7b26\u51fa\u73b0\u4ecem\u5230n\u6b21\u3002\u5305\u62ecm\u548cn\u6b21<\/p>\n
<\/p>\n
<\/p>\n
<\/p>\n
\u8868\u793a\u8fb9\u754c\u7684\u5143\u5b57\u7b26\uff1a<\/p>\n
^\u00a0\u00a0\u00a0 \u5339\u914d\u5b57\u7b26\u5f00\u5934<\/p>\n
$\u00a0\u00a0\u00a0 \u5339\u914d\u5b57\u7b26\u7ed3\u5c3e<\/p>\n
\\b\u00a0\u00a0\u00a0\u00a0 \u5339\u914d\u4e00\u4e2a\u5355\u8bcd\u7684\u8fb9\u754c<\/p>\n
\\B \u00a0\u00a0 \u00a0\u5339\u914d\u975e\u5355\u8bcd\u8fb9\u754c<\/p>\n
<\/p>\n
<\/p>\n
<\/p>\n
\u5206\u7ec4\u5339\u914d<\/p>\n
|\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u5339\u914d\u5de6\u53f3\u4efb\u610f\u4e00\u4e2a\u8868\u8fbe\u5f0f<\/p>\n
(ab)\u00a0\u00a0\u00a0 \u5c06\u62ec\u53f7\u4e2d\u5b57\u7b26\u4f5c\u4e3a\u4e00\u4e2a\u5206\u7ec4<\/p>\n
<\/p>\n
<\/p>\n
<\/p>\n
<\/p>\n
<\/p>\n
<\/p>\n
<\/p>\n
<\/p>\n
<\/p>\n","protected":false},"excerpt":{"rendered":"
\u5927\u5199\u53d6\u53cd\\D\u8868\u793a\u4e0d\u8981\u6570\u5b57 import re a = ‘python123pytho […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[22,23],"tags":[20],"class_list":["post-731","post","type-post","status-publish","format-standard","hentry","category-java","category-python_note","tag-python"],"blocksy_meta":[],"_links":{"self":[{"href":"https:\/\/notes.coremix.net\/index.php?rest_route=\/wp\/v2\/posts\/731","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/notes.coremix.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/notes.coremix.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/notes.coremix.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/notes.coremix.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=731"}],"version-history":[{"count":1,"href":"https:\/\/notes.coremix.net\/index.php?rest_route=\/wp\/v2\/posts\/731\/revisions"}],"predecessor-version":[{"id":732,"href":"https:\/\/notes.coremix.net\/index.php?rest_route=\/wp\/v2\/posts\/731\/revisions\/732"}],"wp:attachment":[{"href":"https:\/\/notes.coremix.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=731"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/notes.coremix.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=731"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/notes.coremix.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=731"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}