{"id":313,"date":"2026-03-17T20:35:45","date_gmt":"2026-03-17T12:35:45","guid":{"rendered":"https:\/\/jiangqvweihuan.cn\/?p=313"},"modified":"2026-03-17T20:35:46","modified_gmt":"2026-03-17T12:35:46","slug":"%e6%9e%84%e7%ae%97%e6%b3%95%e5%ba%a6%c2%b7set%e5%ae%b9%e5%99%a8","status":"publish","type":"post","link":"https:\/\/jiangqvweihuan.cn\/index.php\/2026\/03\/17\/%e6%9e%84%e7%ae%97%e6%b3%95%e5%ba%a6%c2%b7set%e5%ae%b9%e5%99%a8\/","title":{"rendered":"\u6784\u7b97\u6cd5\u5ea6\u00b7set\u5bb9\u5668"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">\u4e00\u3001set\u5bb9\u5668\u7684\u80cc\u666f\u53ca\u4f18\u52bf<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">1.\u5f15\u5165<\/h3>\n\n\n\n<p>set\u5bb9\u5668\u65f6c++\u6807\u51c6\u5e93\u4e2d\u7684\u4e00\u4e2a\u5173\u8054\u5bb9\u5668\uff0c\u5b58\u50a8\u4e86\u4e00\u7ec4\u552f\u4e00\u7684\u5143\u7d20\uff0c\u5e76\u6309\u7167\u4e00\u5b9a\u7684\u987a\u5e8f\u6392\u5217\u3002\u5b83\u63d0\u4f9b\u4e86\u9ad8\u6548\u7684\u5143\u7d20\u67e5\u627e\u3001\u63d2\u5165\u548c\u5220\u9664\u64cd\u4f5c\u3002\u540cmap\u5bb9\u5668\u4e00\u6837\u4e5f\u662f\u57fa\u4e8e\u7ea2\u9ed1\u6811\u5b9e\u73b0\u7684\uff0c\u6240\u4ee5\u5bf9\u4e8e\u67e5\u627e\u3001\u63d2\u5165\u548c\u5220\u9664\u6709\u5bf9\u6570\u7ea7\u7684\u65f6\u95f4\u590d\u6742\u5ea6\u3002<\/p>\n\n\n\n<p>set\u5bb9\u5668\u5b58\u50a8\u7684\u5143\u7d20\u5fc5\u987b\u6ee1\u8db3\u4ee5\u4e0b\u6761\u4ef6\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5143\u7d20\u7c7b\u578b\u5fc5\u987b\u53ef\u4ee5\u6bd4\u8f83\u5927\u5c0f\u3002<\/li>\n\n\n\n<li>\u5143\u7d20\u7c7b\u578b\u5fc5\u987b\u53ef\u4ee5\u8d4b\u503c\u548c\u590d\u5236\u3002<\/li>\n\n\n\n<li>\u5b58\u50a8\u5230 set \u5bb9\u5668\u4e2d\u7684\u5143\u7d20\uff0c\u5143\u7d20\u503c\u65e0\u6cd5\u4fee\u6539\uff1b<\/li>\n<\/ul>\n\n\n\n<p>\u4f8b\u5982\uff0c\u6709\u4e0b\u9762\u4e24\u7ec4\u952e\u503c\u5bf9\u6570\u636e\uff0c\u7b2c\u4e00\u7ec4\u4e2d\u5404\u952e\u503c\u5bf9\u7684\u952e\u548c\u503c\u4e0d\u76f8\u7b49\uff0c\u7b2c\u4e8c\u7ec4\u4e2d\u5404\u952e\u503c\u5bf9\u7684\u952e\u548c\u503c\u76f8\u7b49\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u7b2c\u4e00\u7ec4\u952e\u503c\u5bf9\uff1a{&lt;&#8216;s1&#8217;, 1>, &lt;&#8216;s2&#8217;, 2>, &lt;&#8216;s3&#8217;, 3>}<\/li>\n\n\n\n<li>\u7b2c\u4e8c\u7ec4\u952e\u503c\u5bf9\uff1a{&lt;&#8216;a&#8217;, &#8216;a&#8217;>, &lt;&#8216;b&#8217;, &#8216;b&#8217;>, &lt;&#8216;c&#8217;, &#8216;c&#8217;>}<\/li>\n<\/ul>\n\n\n\n<p>\u5e38\u89c1\u64cd\u4f5c\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>\u6210\u5458\u65b9\u6cd5<\/th><th>\u529f\u80fd<\/th><\/tr><\/thead><tbody><tr><td>insert(\u5143\u7d20)<\/td><td>\u63d2\u5165\u4e00\u4e2a\u5143\u7d20<\/td><\/tr><tr><td>erase(\u5143\u7d20)<\/td><td>\u5220\u9664\u4e00\u4e2a\u5143\u7d20<\/td><\/tr><tr><td>find(\u5143\u7d20)<\/td><td>\u67e5\u627e\u4e00\u4e2a\u5143\u7d20<\/td><\/tr><tr><td>size()<\/td><td>\u8fd4\u56de\u5bb9\u5668\u4e2d\u5143\u7d20\u7684\u6570\u91cf<\/td><\/tr><tr><td>empty()<\/td><td>\u68c0\u67e5\u5bb9\u5668\u662f\u5426\u4e3a\u7a7a<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">2.set\u6027\u8d28<\/h3>\n\n\n\n<p>\u548c map \u5bb9\u5668\u4e0d\u540c\u7684\u662f\uff0cC++ STL\u4e2d\u7684 set \u5bb9\u5668\u7c7b\u6a21\u677f\u4e2d\u672a\u63d0\u4f9b at() \u6210\u5458\u51fd\u6570\uff0c\u4e5f\u672a\u5bf9 []\u00a0\u8fd0\u7b97\u7b26\u00a0\u8fdb\u884c\u91cd\u8f7d\u3002\u56e0\u6b64\uff0c\u8981\u60f3\u8bbf\u95ee set \u5bb9\u5668\u4e2d\u5b58\u50a8\u7684\u5143\u7d20\uff0c\u53ea\u80fd\u501f\u52a9 set \u5bb9\u5668\u7684\u8fed\u4ee3\u5668\u3002<\/p>\n\n\n\n<p>\u4e0b\u9762\u7ed9\u51faset\u5bb9\u5668\u4f7f\u7528\u793a\u4f8b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>#include &lt;iostream>\n#include &lt;set>\nusing namespace std;\nint main() {\n    set&lt;char> cSet;          \/\/ \u521b\u5efa\u5b57\u7b26\u7c7b\u578b\u7684\u96c6\u5408\n    \/\/ \u63d2\u5165\u5143\u7d20\n    cSet.insert('B');\n    cSet.insert('C');\n    cSet.insert('D');\n    cSet.insert('A');\n    cSet.insert('F');\n    cout &lt;&lt; \"old set:\" &lt;&lt; endl;\n    set&lt;char>::iterator it;\n    \/\/ \u5faa\u73af\u663e\u793a\u96c6\u5408\u4e2d\u7684\u5143\u7d20\n    for (it = cSet.begin(); it != cSet.end(); ++it)\n        cout &lt;&lt; *it &lt;&lt; endl;\n    char cTmp;\n    \/* \u7b2c\u4e00\u6b21\u67e5\u627e *\/\n    cTmp = 'D';\n    it = cSet.find(cTmp);                    \/\/ \u5728\u96c6\u5408\u4e2d\u67e5\u627e\u6307\u5b9a\u7684\u5143\u7d20\n    cout &lt;&lt; \"start find: \" &lt;&lt; cTmp &lt;&lt; endl;\n    if (it == cSet.end())                    \/\/ \u6ca1\u627e\u5230\u5143\u7d20\n        cout &lt;&lt; \"not found\" &lt;&lt; endl;\n    else                                     \/\/ \u627e\u5230\u5143\u7d20\n        cout &lt;&lt; \"found\" &lt;&lt; endl;\n    \/* \u7b2c\u4e8c\u6b21\u67e5\u627e *\/\n    cTmp = 'G';\n    it = cSet.find(cTmp);                    \/\/ \u67e5\u627e\u6307\u5b9a\u7684\u5143\u7d20\n    cout &lt;&lt; \"start find: \" &lt;&lt; cTmp &lt;&lt; endl;\n    if (it == cSet.end())                    \/\/ \u6ca1\u627e\u5230\u5143\u7d20\n        cout &lt;&lt; \"not found\" &lt;&lt; endl;\n    else                                     \/\/ \u627e\u5230\u5143\u7d20\n        cout &lt;&lt; \"found\" &lt;&lt; endl;\n    return 0;\n}<\/code><\/pre>\n\n\n\n<pre class=\"wp-block-code\"><code>#include &lt;iostream>\n#include &lt;set>\nusing namespace std;\nint main() {\n    set&lt;int> iSet;      \/\/ \u521b\u5efa\u4e00\u4e2a\u6574\u578b\u96c6\u5408 iSet\n    \/\/ \u4f9d\u6b21\u5411\u96c6\u5408\u4e2d\u63d2\u5165 5 \u4e2a\u5143\u7d20\n    iSet.insert(1);\n    iSet.insert(3);\n    iSet.insert(5);\n    iSet.insert(7);\n    iSet.insert(9);\n    cout &lt;&lt; \"old set:\" &lt;&lt; endl;\n    set&lt;int>::iterator it;\n    for (it = iSet.begin(); it != iSet.end(); ++it)   \/\/ \u8f93\u51fa\u96c6\u5408\u4e2d\u7684\u5143\u7d20\n        cout &lt;&lt; *it &lt;&lt; endl;\n    it = iSet.begin();\n    iSet.erase(++it);   \/\/ \u5220\u9664\u96c6\u5408\u7684\u7b2c 2 \u4e2a\u5143\u7d20\uff08\u5373 3\uff09\n    cout &lt;&lt; \"new set:\" &lt;&lt; endl;\n    for (it = iSet.begin(); it != iSet.end(); ++it)   \/\/ \u8f93\u51fa\u96c6\u5408\u4e2d\u7684\u5143\u7d20\n        cout &lt;&lt; *it &lt;&lt; endl;\n    return 0;\n}<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e8c\u3001\u7ecf\u5178\u4f8b\u9898<\/h2>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e00\u3001set\u5bb9\u5668\u7684\u80cc\u666f\u53ca\u4f18\u52bf 1.\u5f15\u5165 set\u5bb9\u5668\u65f6c++\u6807\u51c6\u5e93\u4e2d\u7684\u4e00\u4e2a\u5173\u8054\u5bb9\u5668\uff0c\u5b58\u50a8\u4e86\u4e00\u7ec4\u552f\u4e00\u7684\u5143\u7d20\uff0c\u5e76\u6309\u7167\u4e00 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":151,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[13,1,12],"tags":[],"class_list":["post-313","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-stl-container","category-article","category-programming-algorithm-road"],"_links":{"self":[{"href":"https:\/\/jiangqvweihuan.cn\/index.php\/wp-json\/wp\/v2\/posts\/313","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/jiangqvweihuan.cn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/jiangqvweihuan.cn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/jiangqvweihuan.cn\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/jiangqvweihuan.cn\/index.php\/wp-json\/wp\/v2\/comments?post=313"}],"version-history":[{"count":2,"href":"https:\/\/jiangqvweihuan.cn\/index.php\/wp-json\/wp\/v2\/posts\/313\/revisions"}],"predecessor-version":[{"id":315,"href":"https:\/\/jiangqvweihuan.cn\/index.php\/wp-json\/wp\/v2\/posts\/313\/revisions\/315"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/jiangqvweihuan.cn\/index.php\/wp-json\/wp\/v2\/media\/151"}],"wp:attachment":[{"href":"https:\/\/jiangqvweihuan.cn\/index.php\/wp-json\/wp\/v2\/media?parent=313"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jiangqvweihuan.cn\/index.php\/wp-json\/wp\/v2\/categories?post=313"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jiangqvweihuan.cn\/index.php\/wp-json\/wp\/v2\/tags?post=313"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}