{"rsdb":{"rid":"372432","subhead":"","postdate":"0","aid":"261439","fid":"77","uid":"1","topic":"1","content":"<div id=\"cnblogs_post_body\" class=\"blogpost-body cnblogs-markdown\"> \n <div class=\"toc\"> \n  <p class=\"toc-title\">\u76ee\u5f55<\/p> \n  <div class=\"toc-list\"> \n   <ul> \n    <li><a>\u5143\u7ec4\u5185\u7f6e\u65b9\u6cd5<\/a>\n     <ul> \n      <li><a>\u4f5c\u7528<\/a><\/li> \n      <li><a>\u5b9a\u4e49\u65b9\u5f0f<\/a><\/li> \n      <li><a>\u4f7f\u7528\u65b9\u6cd5<\/a><\/li> \n      <li><a>\u6709\u5e8for\u65e0\u5e8f<\/a><\/li> \n      <li><a>\u53ef\u53d8or\u4e0d\u53ef\u53d8<\/a><\/li> \n     <\/ul><\/li> \n    <li><a>\u5b57\u5178\u5185\u7f6e\u65b9\u6cd5<\/a>\n     <ul> \n      <li><a>\u4f5c\u7528<\/a><\/li> \n      <li><a>\u5b9a\u4e49\u65b9\u5f0f<\/a><\/li> \n      <li><a>\u4f7f\u7528\u65b9\u6cd5<\/a><\/li> \n      <li><a>\u6709\u5e8for\u65e0\u5e8f<\/a><\/li> \n      <li><a>\u53ef\u53d8or\u4e0d\u53ef\u53d8<\/a><\/li> \n     <\/ul><\/li> \n    <li><a>\u96c6\u5408\u5185\u7f6e\u65b9\u6cd5<\/a>\n     <ul> \n      <li><a>\u4f5c\u7528<\/a><\/li> \n      <li><a>\u5b9a\u4e49\u65b9\u5f0f<\/a><\/li> \n      <li><a>\u4f7f\u7528\u65b9\u6cd5<\/a><\/li> \n      <li><a>\u6709\u5e8for\u65e0\u5e8f<\/a><\/li> \n      <li><a>\u53ef\u53d8or\u4e0d\u53ef\u53d8<\/a><\/li> \n     <\/ul><\/li> \n    <li><a>\u6570\u636e\u7c7b\u578b\u603b\u7ed3<\/a>\n     <ul> \n      <li><a>\u5b58\u503c\u4e2a\u6570<\/a><\/li> \n      <li><a>\u6709\u5e8for\u65e0\u5e8f<\/a><\/li> \n      <li><a>\u53ef\u53d8or\u4e0d\u53ef\u53d8<\/a><\/li> \n     <\/ul><\/li> \n    <li><a>\u6df1\u6d45\u62f7\u8d1d<\/a>\n     <ul> \n      <li><a>\u53ef\u53d8or\u4e0d\u53ef\u53d8<\/a><\/li> \n      <li><a>\u62f7\u8d1d<\/a><\/li> \n      <li><a>\u6d45\u62f7\u8d1d<\/a><\/li> \n      <li><a>\u6df1\u62f7\u8d1d\u5bf9\u8c61<\/a><\/li> \n     <\/ul><\/li> \n   <\/ul> \n  <\/div> \n <\/div> \n <h1 id=\"\u5143\u7ec4\u5185\u7f6e\u65b9\u6cd5\">\u5143\u7ec4\u5185\u7f6e\u65b9\u6cd5<\/h1> \n <h2 id=\"\u4f5c\u7528\">\u4f5c\u7528<\/h2> \n <p>\u5143\u7ec4\u53ef\u4ee5\u770b\u6210\u53ea\u53ef\u53d6\u4e0d\u53ef\u4fee\u6539\u7684\u5217\u8868\uff0c\u5143\u7ec4\u4e00\u521b\u5efa\u5c31\u88ab\u5199\u6b7b\u4e86<\/p> \n <h2 id=\"\u5b9a\u4e49\u65b9\u5f0f\">\u5b9a\u4e49\u65b9\u5f0f<\/h2> \n <p>()\u5185\u7528\u9017\u53f7\u9694\u5f00\u591a\u4e2a\u5143\u7d20\uff08\u53ef\u4ee5\u4e3a\u4efb\u610f\u6570\u636e\u7c7b\u578b\uff09<\/p> \n <pre class=\"python\"><code>tup = tuple((1, 2, 3))\nprint(tup, type(tup))\n\n# \u5982\u679c\u5143\u7ec4\u53ea\u6709\u4e00\u4e2a\u5143\u7d20\uff0c\u5fc5\u987b\u5f97\u52a0\u9017\u53f7\ntup1 = (1,)\nprint(tup1, type(tup1))<\/code><\/pre> \n <h2 id=\"\u4f7f\u7528\u65b9\u6cd5\">\u4f7f\u7528\u65b9\u6cd5<\/h2> \n <pre class=\"python\"><code>tup = (1,2,3,4,5,)\n\n# 1.\u7d22\u5f15\u53d6\u503c\nprint(tup[1])   # 2\n\n# 2.\u5207\u7247\nprint(tup[1:4])  # (2, 3, 4)\n\n# 3.for\u5faa\u73af\nfor i in tup:\n    print(tup)\n    \n# 4.len\u957f\u5ea6\nprint(len(tup))   # 5\n\n# 5.in \/ not in\nprint(0 in tup)   # False\n\n# 6.index\u83b7\u53d6\u7d22\u5f15\nprint(tup.index(1))   # 0\n\n# 7.count\u8ba1\u6570\nprint(tup.count(1))   # 1<\/code><\/pre> \n <h2 id=\"\u6709\u5e8for\u65e0\u5e8f\">\u6709\u5e8for\u65e0\u5e8f<\/h2> \n <p>\u5143\u7ec4\u80fd\u7d22\u5f15\u53d6\u503c\uff0c\u662f\u6709\u5e8f\u7684<\/p> \n <h2 id=\"\u53ef\u53d8or\u4e0d\u53ef\u53d8\">\u53ef\u53d8or\u4e0d\u53ef\u53d8<\/h2> \n <p>\u7b97\u662f\u4e0d\u53ef\u53d8\u5427<\/p> \n <h1 id=\"\u5b57\u5178\u5185\u7f6e\u65b9\u6cd5\">\u5b57\u5178\u5185\u7f6e\u65b9\u6cd5<\/h1> \n <h2 id=\"\u4f5c\u7528-1\">\u4f5c\u7528<\/h2> \n <p>\u5b58\u50a8\u591a\u4e2a\u503c\uff0c\u5bf9\u6bcf\u4e2a\u6570\u636e\u6709\u63cf\u8ff0\u610f\u4e49<\/p> \n <h2 id=\"\u5b9a\u4e49\u65b9\u5f0f-1\">\u5b9a\u4e49\u65b9\u5f0f<\/h2> \n <p>{}\u5185\u7528\u9017\u53f7\u9694\u5f00\u591a\u4e2a\u952ekey(\u5177\u6709\u63cf\u8ff0\u610f\u4e49\uff0c\u4e0d\u80fd\u4e3a\u53ef\u53d8\u6570\u636e\u7c7b\u578b):\u503cvalue\uff08\u4efb\u610f\u6570\u636e\u7c7b\u578b\uff09<\/p> \n <h2 id=\"\u4f7f\u7528\u65b9\u6cd5-1\">\u4f7f\u7528\u65b9\u6cd5<\/h2> \n <pre class=\"python\"><code>dic = {'a':1, 'b':2}\n\n# 1.\u6309key\u53d6\u503c\nprint(dic['a'])  # 1\n\n# 2.\u6309key\u4fee\u6539\u503c\ndic['a'] = 666\nprint(dic)  #  {'a': 666, 'b': 2}\n\ndic['c'] = 3   # \u6ca1\u6709\u5c31\u52a0\u503c\nprint(dic)   # {'a': 666, 'b': 2, 'c': 3}\n\n# 3.for\u5faa\u73af\nfor i in dic:\n    print(i)  # \u53ea\u80fd\u53d6\u5230key\u503c\n    \n# 4.in \/ not in \nprint('a' in dic)   # True\n\n# 5.len\nprint(len(dic))   # 3\n\n# 6.keys\/values\/items \nprint(dic.keys())      # dict_keys(['a', 'b', 'c'])\nprint(dic.values())    # dict_values([666, 2, 3])\nprint(dic.items())     # dict_items([('a', 666), ('b', 2), ('c', 3)])\n\n# 7.get\nprint(dic.get('a'))   # get\u53d6\u503c\uff0c\u5982\u679c\u6ca1\u6709\u8fd4\u56deNone\n\n# 8.update\ndic1 = {'a': 1, 'c': 2}\ndic2 = {'b': 1, 'd': 2}\ndic1.update(dic2)\nprint(dic1)   # {'a': 1, 'c': 2, 'b': 1, 'd': 2}\n\n# 9.fromkeys  \u521b\u5efa\u4e00\u4e2a\u65b0\u5b57\u5178\uff0c\u5982\u6ca1\u6709value\u503c\uff0c\u9ed8\u8ba4None\nprint(dic.fromkeys(['a','b','c'], 1))   # {'a': 1, 'b': 1, 'c': 1}\n\n# 10.# setdefault  # \u5b57\u5178\u6709\u8fd9\u4e2akey\uff0c\u5c31\u4e0d\u4fee\u6539\uff0c\u6ca1\u6709\u5219\u589e\u52a0\ndic.setdefault('j', 2)\ndic.setdefault('a', 2)\nprint(dic)<\/code><\/pre> \n <h2 id=\"\u6709\u5e8for\u65e0\u5e8f-1\">\u6709\u5e8for\u65e0\u5e8f<\/h2> \n <p>\u5b57\u5178\u65e0\u5e8f<\/p> \n <h2 id=\"\u53ef\u53d8or\u4e0d\u53ef\u53d8-1\">\u53ef\u53d8or\u4e0d\u53ef\u53d8<\/h2> \n <p>\u5b57\u5178\u53ef\u53d8<\/p> \n <h1 id=\"\u96c6\u5408\u5185\u7f6e\u65b9\u6cd5\">\u96c6\u5408\u5185\u7f6e\u65b9\u6cd5<\/h1> \n <h2 id=\"\u4f5c\u7528-2\">\u4f5c\u7528<\/h2> \n <p>\u8fdb\u884c \u4ea4\u96c6 \/ \u5e76\u96c6 \/ \u8865\u96c6\u7b49\u8fd0\u7b97\uff0c\u53ef\u4ee5\u53bb\u91cd\uff0c\u4f46\u662f\u96c6\u5408\u5185\u5143\u7d20\u662f\u4e71\u5e8f\u7684<\/p> \n <h2 id=\"\u5b9a\u4e49\u65b9\u5f0f-2\">\u5b9a\u4e49\u65b9\u5f0f<\/h2> \n <p>{}\u5185\u4ee5\u9017\u53f7\u9694\u5f00\u591a\u4e2a\u5143\u7d20\uff08\u4e0d\u80fd\u53ef\u4e3a\u53d8\u6570\u636e\u7c7b\u578b\uff09<\/p> \n <pre class=\"python\"><code>s = {'a', 'a', 'a', 'a', 1, 'v', 2, 2, 'c', 3, 3, 4, 5, 6}  # \u5bf9\u4e8e\u6570\u5b57\u800c\u8a00\uff0c\u4e0d\u4f1a\u4e71\u5e8f\uff1b\u4f46\u662f\u5bf9\u4e8e\u5176\u4ed6\uff0c\u5c31\u4e71\u5e8f\nprint(s)\n# {1, 2, 'a', 3, 4, 5, 6, 'v', 'c'}<\/code><\/pre> \n <h2 id=\"\u4f7f\u7528\u65b9\u6cd5-2\">\u4f7f\u7528\u65b9\u6cd5<\/h2> \n <p><img src=\"https:\/\/images.cnblogs.com\/cnblogs_com\/setcreed\/1543603\/o_%E9%9B%86%E5%90%88%E7%B1%BB%E5%9E%8B%E5%86%85%E7%BD%AE%E8%BF%90%E7%AE%97-%E9%9B%86%E5%90%88%E8%BF%90%E7%AE%97%E8%8B%B1%E6%96%87.jpg\" \/><\/p> \n <pre class=\"python\"><code>se1 = {'cwz', 'neo', 'woods'}\nse2 = {'reese', 'chars', 'cwz'}\n\n# 1.\u5e76\u96c6\nprint(se1 | se2)    # {'neo', 'reese', 'cwz', 'woods', 'chars'}\n\n# 2.\u4ea4\u96c6\nprint(se1 &amp; se2)    # {'cwz'}\n\n# 3. \u5dee\u96c6\nprint(se1 - se2)    # {'neo', 'woods'}\n\n# 4.\u8865\u96c6\nprint(se1 ^ se2)   # {'reese', 'chars', 'neo', 'woods'}\n\n# 5.add\nse1.add('sad')\nprint(se1)          # {'neo', 'sad', 'woods', 'cwz'}\n\n# 6.remove \/ discard\nse1.remove('neo')  # \u6ca1\u6709\u7684\uff0c\u5220\u9664\u7528remove\u4f1a\u62a5\u9519\nprint(se1)            # {'sad', 'woods', 'cwz'}\n\nse2.discard('chars')  # \u6ca1\u6709\u7684\uff0c\u5220\u9664\u7528discard\u4e0d\u4f1a\u62a5\u9519\nprint(se2)            # {'cwz', 'reese'}\n\n# 7.pop\nse1.pop()   # \u968f\u673a\u5220\u9664\u503c\nprint(se1)  # {'woods', 'cwz'}<\/code><\/pre> \n <h2 id=\"\u6709\u5e8for\u65e0\u5e8f-2\">\u6709\u5e8for\u65e0\u5e8f<\/h2> \n <p>\u65e0\u5e8f<\/p> \n <h2 id=\"\u53ef\u53d8or\u4e0d\u53ef\u53d8-2\">\u53ef\u53d8or\u4e0d\u53ef\u53d8<\/h2> \n <p>\u53ef\u53d8<\/p> \n <h1 id=\"\u6570\u636e\u7c7b\u578b\u603b\u7ed3\">\u6570\u636e\u7c7b\u578b\u603b\u7ed3<\/h1> \n <h2 id=\"\u5b58\u503c\u4e2a\u6570\">\u5b58\u503c\u4e2a\u6570<\/h2> \n <ul> \n  <li>\u5b58\u4e00\u4e2a\u503c\uff1a\u6574\u578b \/ \u6d6e\u70b9\u578b \/ \u5b57\u7b26\u4e32<\/li> \n  <li>\u5b58\u591a\u4e2a\u503c\uff1a\u5217\u8868 \/ \u5143\u7ec4 \/ \u5b57\u5178 \/ \u96c6\u5408<\/li> \n <\/ul> \n <h2 id=\"\u6709\u5e8for\u65e0\u5e8f-3\">\u6709\u5e8for\u65e0\u5e8f<\/h2> \n <ul> \n  <li>\u6709\u5e8f\uff1a\u5b57\u7b26\u4e32 \/ \u5217\u8868 \/ \u5143\u7ec4<\/li> \n  <li>\u65e0\u5e8f\uff1a\u5b57\u5178 \/ \u96c6\u5408<\/li> \n <\/ul> \n <h2 id=\"\u53ef\u53d8or\u4e0d\u53ef\u53d8-3\">\u53ef\u53d8or\u4e0d\u53ef\u53d8<\/h2> \n <ul> \n  <li>\u53ef\u53d8\uff1a\u5217\u8868 \/ \u5b57\u5178 \/ \u96c6\u5408<\/li> \n  <li>\u4e0d\u53ef\u53d8\uff1a\u6574\u578b \/ \u6d6e\u70b9\u578b \/ \u5b57\u7b26\u4e32 \/ \u5143\u7ec4<\/li> \n <\/ul> \n <h1 id=\"\u6df1\u6d45\u62f7\u8d1d\">\u6df1\u6d45\u62f7\u8d1d<\/h1> \n <h2 id=\"\u53ef\u53d8or\u4e0d\u53ef\u53d8-4\">\u53ef\u53d8or\u4e0d\u53ef\u53d8<\/h2> \n <p>id\u503c\u4e0d\u53ef\u53d8\uff0c\u5c31\u662f\u5728\u539f\u503c\u57fa\u7840\u4e0a\u4fee\u6539\uff0c\u4e3a\u53ef\u53d8\u6570\u636e\u7c7b\u578b\uff1b<\/p> \n <p>id\u503c\u53d8\u5316\uff0c\u5c31\u662f\u91cd\u65b0\u7533\u8bf7\u4e00\u5757\u5185\u5b58\u7a7a\u95f4\u653e\u5165\u65b0\u503c\uff0c\u4e3a\u4e0d\u53ef\u53d8\u6570\u636e\u7c7b\u578b\u3002<\/p> \n <h2 id=\"\u62f7\u8d1d\">\u62f7\u8d1d<\/h2> \n <p>\u5982\u679clt2\u662flt1\u7684\u62f7\u8d1d\u5bf9\u8c61\uff0c\u5219lt1\u5185\u4efb\u4f55\u6570\u636e\u7c7b\u578b\u7684\u5143\u7d20\u53d8\u5316\uff0clt2\u4e5f\u8ddf\u7740\u53d8\u5316\u3002<\/p> \n <pre class=\"python\"><code>lt1 = [1,2,3,4,'a',[1,23,5]]\nlt2 = lt1\nprint(lt1)\nprint('lt1_id: ', id(lt1))\nlt1.append('b')\nprint('*'*50)\nprint(lt1)\nprint('lt1_id: ', id(lt1))\nprint(lt2)\nprint('lt2_id: ', id(lt2))\n\n# \u6253\u5370\u7ed3\u679c\uff1a\n[1, 2, 3, 4, 'a', [1, 23, 5]]\nlt1_id:  1990616507080\n**************************************************\n[1, 2, 3, 4, 'a', [1, 23, 5], 'b']\nlt1_id:  1990616507080\n[1, 2, 3, 4, 'a', [1, 23, 5], 'b']\nlt2_id:  1990616507080<\/code><\/pre> \n <h2 id=\"\u6d45\u62f7\u8d1d\">\u6d45\u62f7\u8d1d<\/h2> \n <p>\u5982\u679clt2\u662flt1\u7684\u6d45\u62f7\u8d1d\u5bf9\u8c61\uff0c\u5219lt1\u5185\u7684\u4e0d\u53ef\u53d8\u5143\u7d20\u53d1\u751f\u4e86\u53d8\u5316\uff0clt2\u4e0d\u53d8\uff1b<\/p> \n <p>\u5982\u679clt1\u5185\u7684\u53ef\u53d8\u5143\u7d20\u53d1\u751f\u4e86\u6539\u53d8\uff0c\u5219lt2\u8ddf\u7740\u6539\u53d8<\/p> \n <pre class=\"python\"><code>import copy\n\nlt1 = [1, 2, 3, 4, 'a', [1, 23, 5]]\nlt2 = copy.copy(lt1)\nlt1.append(99)\nprint('lt1: ', lt1)\nprint('lt1_id: ', id(lt1))\nprint('lt2: ', lt2)\nprin","orderid":"0","title":"\u5143\u7ec4\u3001\u5b57\u5178\u3001\u96c6\u5408\u5185\u7f6e\u65b9\u6cd5\uff0c \u6df1\u6d45\u62f7\u8d1d(\u4e00)","smalltitle":"","mid":"0","fname":"Python","special_id":"0","bak_id":"0","info":"0","hits":"75","pages":"2","comments":"0","posttime":"2019-09-19 11:10:17","list":"1568862617","username":"admin","author":"","copyfrom":"","copyfromurl":"","titlecolor":"","fonttype":"0","titleicon":"0","picurl":"https:\/\/www.cppentry.com\/upload_files\/","ispic":"0","yz":"1","yzer":"","yztime":"0","levels":"0","levelstime":"0","keywords":"<A HREF='https:\/\/www.cppentry.com\/do\/search.php?type=keyword&keyword=%D4%AA%D7%E9' target=_blank>\u5143\u7ec4<\/A> <A HREF='https:\/\/www.cppentry.com\/do\/search.php?type=keyword&keyword=%D7%D6%B5%E4' target=_blank>\u5b57\u5178<\/A> <A HREF='https:\/\/www.cppentry.com\/do\/search.php?type=keyword&keyword=%BC%AF%BA%CF' target=_blank>\u96c6\u5408<\/A> <A HREF='https:\/\/www.cppentry.com\/do\/search.php?type=keyword&keyword=%C4%DA%D6%C3' target=_blank>\u5185\u7f6e<\/A> <A HREF='https:\/\/www.cppentry.com\/do\/search.php?type=keyword&keyword=%B7%BD%B7%A8' target=_blank>\u65b9\u6cd5<\/A> <A HREF='https:\/\/www.cppentry.com\/do\/search.php?type=keyword&keyword=%C9%EE%C7%B3' target=_blank>\u6df1\u6d45<\/A> <A HREF='https:\/\/www.cppentry.com\/do\/search.php?type=keyword&keyword=%BF%BD%B1%B4' target=_blank>\u62f7\u8d1d<\/A>","jumpurl":"","iframeurl":"","style":"","template":"a:3:{s:4:\"head\";s:0:\"\";s:4:\"foot\";s:0:\"\";s:8:\"bencandy\";s:0:\"\";}","target":"0","ip":"14.17.22.32","lastfid":"0","money":"0","buyuser":"","passwd":"","allowdown":"","allowview":"","editer":"","edittime":"0","begintime":"0","endtime":"0","description":"\u5143\u7ec4\u3001\u5b57\u5178\u3001\u96c6\u5408\u5185\u7f6e\u65b9\u6cd5\uff0c \u6df1\u6d45\u62f7\u8d1d","lastview":"1714105225","digg_num":"0","digg_time":"0","forbidcomment":"0","ifvote":"0","heart":"","htmlname":"","city_id":"0"},"page":"1"}