\u5217\u8868\u3001\u5143\u7ec4\u3001\u96c6\u5408\u3001\u5b57\u5178\u548c\u5b57\u7b26\u4e32\u3002<\/p>\n\n\n\n
\u7d22\u5f15 \uff1a\u6b63\u6570\u7d22\u5f15\u4ece0\u5f00\u59cb\uff0c\u8d1f\u6570\u7d22\u5f15\u4ece-1\u5f00\u59cb\u3002<\/p>\n\n\n\n
\u5207\u7247 \uff1asname[start : end : step]<\/p>\n\n\n\n
\u5e8f\u5217\u76f8\u52a0<\/p>\n\n\n\n
\u5e8f\u5217\u4e58\u6cd5<\/p>\n\n\n\n
\u68c0\u67e5\u67d0\u4e2a\u5143\u7d20\u662f\u5426\u662f\u5e8f\u5217\u6210\u5458 \uff1a<value> in <sequence> \uff0c <value> not in <sequence><\/p>\n\n\n\n
\u8ba1\u7b97\u5e8f\u5217\u957f\u5ea6\u3001\u6700\u5927\u548c\u6700\u5c0f\u503c \uff1alen(<sequence>) \u3001max(<sequence>) \u3001min(<sequence>)<\/p>\n\n\n\n
\u6c42\u548c\u3001\u6392\u5e8f\u3001\u53cd\u5411\u5e8f\u5217\u3001\u8f6c\u6362\u5217\u8868 \uff1a sum() \u3001sorted() \u3001reversed() \u3001list()<\/p>\n\n\n\n
\u5e8f\u5217\u7ec4\u5408\u4e3a\u4e00\u4e2a\u7d22\u5f15\u5e8f\u5217 \uff1aenumerate() \u591a\u7528\u5728for\u5faa\u73af\u4e2d\u3002<\/p>\n\n\n\n
\u521b\u5efa \uff1a
1. listname = [element1, element2, element3, … , elementN]
2. listname = []
3. list(<data>)<\/p>\n\n\n\n
\u5220\u9664\u5217\u8868 \uff1adel listname<\/p>\n\n\n\n
\u8bbf\u95ee\u5217\u8868\u5143\u7d20 \uff1alistname[N]<\/p>\n\n\n\n
\u904d\u5386\u5217\u8868 \uff1a
for <item> in <listname>:
<\u4ee3\u7801\u5757><\/p>\n\n\n\n
\u540c\u65f6\u8f93\u51fa\u7d22\u5f15\u503c\u548c\u5143\u7d20\u5185\u5bb9\uff1a
for <index>,<item> in enumerate(<listname>):
<\u4ee3\u7801\u5757><\/p>\n\n\n\n
\u6dfb\u52a0\u3001\u4fee\u6539\u548c\u5220\u9664\u5217\u8868\u5143\u7d20\uff1a
1. \u6dfb\u52a0\u5143\u7d20\uff1alistname.append(obj) listname.insert(index,obj) listname.extend(objs)
2. \u4fee\u6539\u5143\u7d20\uff1alistname[N]=<index>
3. \u5220\u9664\u5143\u7d20\uff1adel listname[N] listname.remove(<value>)<\/p>\n\n\n\n
\u5bf9\u5217\u8868\u8fdb\u884c\u7edf\u8ba1\u548c\u8ba1\u7b97
1. \u83b7\u53d6\u5143\u7d20\u51fa\u73b0\u7684\u6b21\u6570\uff1alistname.count(<value>)
2. \u83b7\u53d6\u6307\u5b9a\u5143\u7d20\u9996\u6b21\u51fa\u73b0\u7684\u4e0b\u6807\uff1alistname.index(<value>)
3. \u7edf\u8ba1\u6570\u503c\u5217\u8868\u7684\u5143\u7d20\u548c\uff1asum(listname[,start])<\/p>\n\n\n\n
\u6392\u5e8f
1. listname.sort(key=None, reverse=False)
\u5bf9\u4e2d\u6587\u652f\u6301\u4e0d\u597d\uff0c\u4e0d\u80fd\u76f4\u63a5\u8c03\u7528sort
2. \u4f7f\u7528\u5185\u7f6esorted()\uff1asorted(listname, key=None, reverse=False)<\/p>\n\n\n\n
\u5217\u8868\u63a8\u5bfc\u5f0f
1. \u751f\u6210\u6307\u5b9a\u8303\u56f4\u7684\u6570\u503c\u5217\u8868\uff1alist = [\u751f\u6210\u5217\u8868\u8868\u8fbe\u5f0f for var in range]
2. \u6839\u636e\u5217\u8868\u751f\u6210\u6307\u5b9a\u9700\u6c42\u7684\u5217\u8868\uff1alist = [\u751f\u6210\u5217\u8868\u8868\u8fbe\u5f0f for var in list]
3. \u4ece\u5217\u8868\u4e2d\u9009\u62e9\u7b26\u5408\u6761\u4ef6\u7684\u5143\u7d20\u7ec4\u6210\u65b0\u5217\u8868\uff1alist = [\u751f\u6210\u5217\u8868\u8868\u8fbe\u5f0f for var in list if condition]<\/p>\n\n\n\n
\u4e8c\u7ef4\u5217\u8868
\u521b\u5efa\u65b9\u5f0f\uff1a
1. listname = [[…],[…],[…]…]
2. for\u5d4c\u5957\u751f\u6210
3. \u5217\u8868\u63a8\u5bfc\u5f0f\u521b\u5efa<\/p>\n\n\n\n
\u8bbf\u95ee\u65b9\u6cd5\uff1alistname[index1][index2]<\/p>\n\n\n\n
\u4e0d\u53ef\u53d8\u5e8f\u5217\u3002\u4f46\u662f\u53ef\u4ee5\u901a\u8fc7\u5c06\u4e24\u4e2a\u5143\u7ec4\u8fde\u63a5\u6765\u5b9e\u73b0\u6dfb\u52a0\u5143\u7d20\u7684\u6548\u679c\u3002\u5143\u7ec4\u7684\u8bbf\u95ee\u901f\u5ea6\u66f4\u5feb\u3002
*\u5143\u7ec4\u53ef\u4ee5\u5f53\u4f5c\u5b57\u5178\u7684\u952e\u3002<\/p>\n\n\n\n
\u521b\u5efa\uff1a varname = (e1, e2, … , en)
varname = tuple()
*\u4e00\u4e2a\u5143\u7d20\u7684\u5143\u7ec4\uff1a \uff08e1,)
\u7a7a\u5143\u7ec4\uff1a ()<\/p>\n\n\n\n
\u5220\u9664\uff1a del varname<\/p>\n\n\n\n
\u8bbf\u95ee\uff1a varname[N]<\/p>\n\n\n\n
\u904d\u5386\uff1a for\u5faa\u73af\u548cenumerate()\u51fd\u6570\u7ed3\u5408
for index,item in enumerate(varname)
<\u4ee3\u7801\u5757><\/p>\n\n\n\n
\u4fee\u6539\uff1a \u53ef\u4ee5\u6539\u53d8\u53d8\u91cf\u7684\u5f15\u7528\u8fbe\u5230\u4fee\u6539\u5143\u7d20\u7684\u6548\u679c\u3002<\/p>\n\n\n\n
\u5143\u7ec4\u63a8\u5bfc\u5f0f\uff1a \u540c\u5217\u8868\u63a8\u5bfc\u5f0f\uff0c\u628a\u65b9\u62ec\u53f7\u6539\u6210\u5706\u62ec\u53f7\u3002<\/p>\n\n\n\n
\u76f8\u5f53\u4e8eJava\u4e2d\u7684Map\uff0c\u5b58\u50a8\u7684\u6570\u636e\u662f\u65e0\u5e8f\u7684\u3002\u53ef\u4ee5\u4efb\u610f\u5d4c\u5957\u3002<\/p>\n\n\n\n
\u521b\u5efa\uff1avarname = {‘key1′:’value1′,’key2′:’value2′,…,’keyn’,’valuen’}
varname = dict(zip(list1,list2)) #\u5982\u679clist1\u548clist2\u957f\u5ea6\u4e0d\u540c
varname = dict(key1=value1,key2=value2,…keyn=valuen)
varname = {tuple:list} #\u4f5c\u4e3a\u952e\u5fc5\u987b\u662f\u5143\u7ec4
\u7a7a\u5b57\u5178\uff1a{}
\u7a7a\u503c\u5b57\u5178\uff1adict.fromkeys(list)<\/p>\n\n\n\n
\u5220\u9664\uff1adel varname
varname.clear() #\u6e05\u9664\u5b57\u5178\u4e2d\u6240\u6709\u5143\u7d20
varname.pop() #\u5220\u9664\u5e76\u8fd4\u56de\u6307\u5b9a\u7684\u952e
varname.popitem() #\u5220\u9664\u5e76\u8fd4\u56de\u5b57\u5178\u4e2d\u7684\u4e00\u4e2a\u5143\u7d20<\/p>\n\n\n\n
\u8bbf\u95ee\uff1avarname[key]
varname.get(key[,default])<\/p>\n\n\n\n
\u904d\u5386\uff1a
for item in varname.items()
<\u4ee3\u7801\u5757><\/p>\n\n\n\n
\u4fee\u6539\u5143\u7d20\uff1a
varname[key]=value #\u5982\u679c\u5b58\u5728\u5c31\u4f1a\u4fee\u6539\uff0c\u5982\u679c\u4e0d\u5b58\u5728\u5c31\u4f1a\u65b0\u589e<\/p>\n\n\n\n
\u5220\u9664\u5143\u7d20\uff1a
del varname[key]<\/p>\n\n\n\n
\u5b57\u5178\u63a8\u5bfc\u5f0f\uff1a
import random
varname = {i:random.randint(10,100) for i in range(1,5)}<\/p>\n\n\n\n
\u76f8\u5f53\u4e8eJava\u4e2d\u7684Set\uff0c\u53ef\u4ee5\u4fdd\u8bc1\u5143\u7d20\u4e0d\u91cd\u590d\uff0c\u6709\u53ef\u53d8\u96c6\u5408\uff08set\uff09\u548c\u4e0d\u53ef\u53d8\u96c6\u5408\uff08frozenset\uff09\u4e24\u79cd\u3002<\/p>\n\n\n\n
\u521b\u5efa\uff1a
varname = {e1,e2,…,en}
varname = set(<iteration>)
*\u7a7a\u96c6\u5408\u53ea\u80fd\u7528 set()\uff0c\u4e0d\u80fd\u7528{}\uff0c{}\u8ba4\u4e3a\u662f\u7a7a\u7684\u5b57\u5178\u3002<\/p>\n\n\n\n
\u6dfb\u52a0\u5143\u7d20\uff1avarname.add(<e>)<\/p>\n\n\n\n
\u5220\u9664\u5143\u7d20\uff1a
\u5220\u9664\u6307\u5b9a\u5143\u7d20\uff1avarname.remove(<e>)
\u5220\u9664\u4e00\u4e2a\u5143\u7d20\uff1avarname.pop()
\u6e05\u7a7a\u96c6\u5408\uff1avarname.clear()<\/p>\n\n\n\n
\u96c6\u5408\u8fd0\u7b97
\u4ea4\u96c6\uff1a &
\u5e76\u96c6\uff1a |
\u5dee\u96c6\uff1a –
\u5bf9\u79f0\u5dee\u96c6\uff1a ^<\/p>\n\n\n\n
\u62fc\u63a5\uff1a <string1>+<string2>
\u8ba1\u7b97\u957f\u5ea6\uff1a len(<string>)
\u5206\u5272\u3001\u5408\u5e76\u5b57\u7b26\u4e32\uff1a string.split(<\u5206\u9694\u7b26>\uff0c<\u6700\u5927\u5206\u5272\u6b21\u6570>) str.join(<\u53ef\u8fed\u4ee3\u5bf9\u8c61>)<\/p>\n\n\n\n
\u7edf\u8ba1\u6b21\u6570\uff1a count()
\u68c0\u7d22\u662f\u5426\u5305\u542b\u6307\u5b9a\u5b50\u4e32\uff1a
str.find(sub[, start[, end]])
str.rfind \u4ece\u53f3\u5f00\u59cb\u68c0\u7d22
str.index(sub[, start[, end]])
\u68c0\u7d22\u662f\u5426\u4ee5\u6307\u5b9a\u5b57\u7b26\u4e32\u5f00\u5934\u3001\u7ed3\u5c3e\uff1a
str.startswith(prefix[, start[, end]])
str.endswith(suffix[, start[, end]])
\u5b57\u6bcd\u5927\u5c0f\u5199\u8f6c\u6362\uff1a
str.lower() str.upper()
\u53bb\u9664\u7a7a\u683c\u6216\u8005\u7279\u6b8a\u5b57\u7b26\uff1a
str.strip([chars]) str.lstrip([chars]) str.rstrip([chars])
\u683c\u5f0f\u5316\u5b57\u7b26\u4e32
‘%[-][+][0][m][.n]\u683c\u5f0f\u5316\u5b57\u7b26’%exp
\u5e38\u7528\u683c\u5f0f\u5316\u5b57\u7b26\uff1a
%s : \u5b57\u7b26\u4e32(str())\uff1b%r : \u5b57\u7b26\u4e32(repr())\uff1b%c : \u5355\u4e2a\u5b57\u7b26\uff1b%o : \u516b\u8fdb\u5236\u6574\u6570\uff1b%x : \u5341\u516d\u8fdb\u5236\u6574\u6570\uff1b
%d\u6216\u8005%i : \u5341\u8fdb\u5236\u6574\u6570\uff1b%f\u6216\u8005%F : \u6d6e\u70b9\u6570\uff1b%e : \u6307\u6570(\u5e95\u4e3ae)\uff1b%E : \u6307\u6570(\u5e95\u4e3aE)\uff1b%% : \u5b57\u7b26%\uff1b
\u4f7f\u7528\u5bf9\u8c61\u7684format()\u65b9\u6cd5\uff1a
str.format(args)
str : {[index][:[[fill]align][sign][#][width][.precision][type]]}
fill : \u7a7a\u767d\u5904\u586b\u5145\u7684\u5b57\u7b26\uff1b
align : “<“\u5de6\u5bf9\u9f50\uff0c”>”\u53f3\u5bf9\u9f50, “^”\u5c45\u4e2d\uff1b
sign : \u7559\u7a7a:\u6b63\u6570\u52a0\u7a7a\u683c\uff0c\u8d1f\u6570\u52a0\u8d1f\u53f7\uff1b+:\u6b63\u6570\u52a0\u6b63\u597d\uff1b-:\u6b63\u6570\u4e0d\u52a0\u7a7a\u683c\uff1b
.precision : \u4fdd\u7559\u5c0f\u6570\u7684\u4f4d\u6570\uff1b
type : \u7c7b\u578b\uff08\u540c\u5e38\u7528\u683c\u5f0f\u5316\u5b57\u7b26\uff0c\u53bb\u6389%\u5373\u53ef\uff09\u3002
<\/p>\n\n\n\n
\u7f16\u7801\uff1astr.encode([encoding=<coding>][,errors=<function>])
\u89e3\u7801\uff1astr.decode([encoding=<coding>][,errors=<function>])
coding: utf-8, gb2312
function: strict\u629b\u51fa\u5f02\u5e38\uff0cignore\u5ffd\u7565\u975e\u6cd5\u5b57\u7b26\uff0creplace\u7528”?”\u4ee3\u66ff\u975e\u6cd5\u5b57\u7b26\uff0cxmlcharrefreplace\u4f7f\u7528XML\u7684\u5b57\u7b26\u5f15\u7528\u3002<\/p>\n\n\n\n
\u6b63\u5219\u8868\u8fbe\u5f0f\u8bed\u6cd5<\/p>\n\n\n\n
\u7528re\u6a21\u5757\u5b9e\u73b0\u6b63\u5219\u8868\u8fbe\u5f0f\u7684\u64cd\u4f5c\uff1a
\u5339\u914d\uff1a
re.match(pattern, string, [flags]) \u8fd4\u56dematch\u5bf9\u8c61\uff0c\u6216\u8005None
flags\uff1aA(ASCII):\\w \\W \\b \\B \\d \\D \\s \\S\u53ea\u8fdb\u884cASCII\u5339\u914d\uff1bI(IGNORECASE):\u4e0d\u533a\u5206\u5927\u5c0f\u5199\uff1bM(MULTLINE):\u5c06^\u548c$\u5305\u62ec\u6574\u4e2a\u5b57\u7b26\u4e32\u7684\u5f00\u59cb\u548c\u7ed3\u5c3e\uff1bS(DOTALL):\u7528.\u5339\u914d\u6240\u6709\u5b57\u7b26\uff0c\u5305\u62ec\u6362\u884c\u7b26\uff1bX(VERBOSE):\u5ffd\u7565\u6a21\u5f0f\u5b57\u7b26\u4e32\u4e2d\u672a\u8f6c\u4e49\u7684\u7a7a\u683c\u548c\u6ce8\u91ca\uff1b
re.search(pattern, string, [flags]) \u8fd4\u56dematch\u5bf9\u8c61\uff0c\u6216\u8005None
re.findall(pattern, string, [flags]) \u8fd4\u56de\u5217\u8868<\/p>\n\n\n\n
\u66ff\u6362\u5b57\u7b26\u4e32\uff1a
re.sub(pattern, repl, string, count, flags)<\/p>\n\n\n\n
\u5206\u5272\u5b57\u7b26\u4e32\uff1a
re.split(pattern, string, [maxsplit], [flags])
<\/p>\n","protected":false},"excerpt":{"rendered":"
\u5e8f\u5217 \u5217\u8868\u3001\u5143\u7ec4\u3001\u96c6\u5408\u3001\u5b57\u5178\u548c\u5b57\u7b26\u4e32\u3002 \u5e8f\u5217\u7684\u5171\u540c\u7279...<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[51],"tags":[],"class_list":["post-1804","post","type-post","status-publish","format-standard","hentry","category-python"],"_links":{"self":[{"href":"http:\/\/www.jusesgod.com\/index.php?rest_route=\/wp\/v2\/posts\/1804","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.jusesgod.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.jusesgod.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.jusesgod.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.jusesgod.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1804"}],"version-history":[{"count":4,"href":"http:\/\/www.jusesgod.com\/index.php?rest_route=\/wp\/v2\/posts\/1804\/revisions"}],"predecessor-version":[{"id":1809,"href":"http:\/\/www.jusesgod.com\/index.php?rest_route=\/wp\/v2\/posts\/1804\/revisions\/1809"}],"wp:attachment":[{"href":"http:\/\/www.jusesgod.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1804"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.jusesgod.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1804"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.jusesgod.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1804"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}