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0.8);padding:2px;}#mermaid-svg-08YjmQMuLcGfiwlF .icon-shape .label rect,#mermaid-svg-08YjmQMuLcGfiwlF .image-shape .label rect{opacity:0.5;background-color:rgba(232,232,232, 0.8);fill:rgba(232,232,232, 0.8);}#mermaid-svg-08YjmQMuLcGfiwlF .label-icon{display:inline-block;height:1em;overflow:visible;vertical-align:-0.125em;}#mermaid-svg-08YjmQMuLcGfiwlF .node .label-icon path{fill:currentColor;stroke:revert;stroke-width:revert;}#mermaid-svg-08YjmQMuLcGfiwlF :root{&#8211;mermaid-font-family:\\&#8221;trebuchet ms\\&#8221;,verdana,arial,sans-serif;}<span class=\"edgeLabel\"><\/span><span class=\"edgeLabel\"><\/span><span class=\"edgeLabel\"><\/span><span class=\"nodeLabel\"><\/p>\n<p>A<\/p>\n<p><\/span><span class=\"nodeLabel\"><\/p>\n<p>B<\/p>\n<p><\/span><span class=\"nodeLabel\"><\/p>\n<p>C<\/p>\n<p><\/span><\/p>\n<h3>\u4e94\u3001C\u8bed\u8a00\u4ee3\u7801\u5b9e\u73b0<\/h3>\n<h4>1. \u8282\u70b9\u7ed3\u6784\u4f53\u5b9a\u4e49<\/h4>\n<p><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;stdio.h&gt;<\/span><\/span><br \/>\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;stdlib.h&gt;<\/span><\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u8282\u70b9\u7ed3\u6784\u4f53<\/span><br \/>\n<span class=\"token keyword\">typedef<\/span> <span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">Node<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">int<\/span> data<span class=\"token punctuation\">;<\/span>           <span class=\"token comment\">\/\/ \u6570\u636e\u57df<\/span><br \/>\n    <span class=\"token keyword\">struct<\/span> <span class=\"token class-name\">Node<\/span><span class=\"token operator\">*<\/span> next<span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/ \u6307\u9488\u57df<\/span><br \/>\n<span class=\"token punctuation\">}<\/span> Node<span class=\"token punctuation\">;<\/span><\/p>\n<h4>2. \u521b\u5efa\u65b0\u8282\u70b9<\/h4>\n<p><span class=\"token comment\">\/\/ \u521b\u5efa\u65b0\u8282\u70b9<\/span><br \/>\nNode<span class=\"token operator\">*<\/span> <span class=\"token function\">createNode<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> data<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    Node<span class=\"token operator\">*<\/span> newNode <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">(<\/span>Node<span class=\"token operator\">*<\/span><span class=\"token punctuation\">)<\/span><span class=\"token function\">malloc<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">sizeof<\/span><span class=\"token punctuation\">(<\/span>Node<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>newNode <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token constant\">NULL<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u5185\u5b58\u5206\u914d\u5931\u8d25\\\\n&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token function\">exit<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n    newNode<span class=\"token operator\">-&gt;<\/span>data <span class=\"token operator\">&#061;<\/span> data<span class=\"token punctuation\">;<\/span><br \/>\n    newNode<span class=\"token operator\">-&gt;<\/span>next <span class=\"token operator\">&#061;<\/span> <span class=\"token constant\">NULL<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">return<\/span> newNode<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h4>3. \u5c3e\u90e8\u6dfb\u52a0\u8282\u70b9<\/h4>\n<p><span class=\"token comment\">\/\/ \u5728\u94fe\u8868\u5c3e\u90e8\u6dfb\u52a0\u8282\u70b9<\/span><br \/>\n<span class=\"token keyword\">void<\/span> <span class=\"token function\">append<\/span><span class=\"token punctuation\">(<\/span>Node<span class=\"token operator\">*<\/span><span class=\"token operator\">*<\/span> head<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">int<\/span> data<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    Node<span class=\"token operator\">*<\/span> newNode <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">createNode<\/span><span class=\"token punctuation\">(<\/span>data<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token operator\">*<\/span>head <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token constant\">NULL<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token operator\">*<\/span>head <span class=\"token operator\">&#061;<\/span> newNode<span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">return<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n    Node<span class=\"token operator\">*<\/span> cur <span class=\"token operator\">&#061;<\/span> <span class=\"token operator\">*<\/span>head<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">while<\/span> <span class=\"token punctuation\">(<\/span>cur<span class=\"token operator\">-&gt;<\/span>next <span class=\"token operator\">!&#061;<\/span> <span class=\"token constant\">NULL<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        cur <span class=\"token operator\">&#061;<\/span> cur<span class=\"token operator\">-&gt;<\/span>next<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n    cur<span class=\"token operator\">-&gt;<\/span>next <span class=\"token operator\">&#061;<\/span> newNode<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h4>4. \u5728\u6307\u5b9a\u8282\u70b9\u540e\u63d2\u5165<\/h4>\n<p><span class=\"token comment\">\/\/ \u5728\u6307\u5b9a\u8282\u70b9 prev \u540e\u63d2\u5165\u65b0\u8282\u70b9<\/span><br \/>\n<span class=\"token keyword\">void<\/span> <span class=\"token function\">insertAfter<\/span><span class=\"token punctuation\">(<\/span>Node<span class=\"token operator\">*<\/span> prev<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">int<\/span> data<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>prev <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token constant\">NULL<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u524d\u9a71\u8282\u70b9\u4e0d\u80fd\u4e3a\u7a7a\\\\n&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">return<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n    Node<span class=\"token operator\">*<\/span> newNode <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">createNode<\/span><span class=\"token punctuation\">(<\/span>data<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    newNode<span class=\"token operator\">-&gt;<\/span>next <span class=\"token operator\">&#061;<\/span> prev<span class=\"token operator\">-&gt;<\/span>next<span class=\"token punctuation\">;<\/span><br \/>\n    prev<span class=\"token operator\">-&gt;<\/span>next <span class=\"token operator\">&#061;<\/span> newNode<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h4>5. \u5220\u9664\u7b2c\u4e00\u4e2a\u503c\u4e3a key \u7684\u8282\u70b9<\/h4>\n<p><span class=\"token comment\">\/\/ \u5220\u9664\u7b2c\u4e00\u4e2a\u503c\u4e3a key \u7684\u8282\u70b9<\/span><br \/>\n<span class=\"token keyword\">void<\/span> <span class=\"token function\">deleteNode<\/span><span class=\"token punctuation\">(<\/span>Node<span class=\"token operator\">*<\/span><span class=\"token operator\">*<\/span> head<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">int<\/span> key<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    Node<span class=\"token operator\">*<\/span> cur <span class=\"token operator\">&#061;<\/span> <span class=\"token operator\">*<\/span>head<span class=\"token punctuation\">;<\/span><br \/>\n    Node<span class=\"token operator\">*<\/span> prev <span class=\"token operator\">&#061;<\/span> <span class=\"token constant\">NULL<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u5982\u679c\u5934\u8282\u70b9\u5c31\u662f\u8981\u5220\u9664\u7684\u8282\u70b9<\/span><br \/>\n    <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>cur <span class=\"token operator\">!&#061;<\/span> <span class=\"token constant\">NULL<\/span> <span class=\"token operator\">&amp;&amp;<\/span> cur<span class=\"token operator\">-&gt;<\/span>data <span class=\"token operator\">&#061;&#061;<\/span> key<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token operator\">*<\/span>head <span class=\"token operator\">&#061;<\/span> cur<span class=\"token operator\">-&gt;<\/span>next<span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token function\">free<\/span><span class=\"token punctuation\">(<\/span>cur<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">return<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u67e5\u627e\u8981\u5220\u9664\u7684\u8282\u70b9<\/span><br \/>\n    <span class=\"token keyword\">while<\/span> <span class=\"token punctuation\">(<\/span>cur <span class=\"token operator\">!&#061;<\/span> <span class=\"token constant\">NULL<\/span> <span class=\"token operator\">&amp;&amp;<\/span> cur<span class=\"token operator\">-&gt;<\/span>data <span class=\"token operator\">!&#061;<\/span> key<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        prev <span class=\"token operator\">&#061;<\/span> cur<span class=\"token punctuation\">;<\/span><br \/>\n        cur <span class=\"token operator\">&#061;<\/span> cur<span class=\"token operator\">-&gt;<\/span>next<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u5982\u679c\u6ca1\u627e\u5230<\/span><br \/>\n    <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>cur <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token constant\">NULL<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;\u672a\u627e\u5230\u503c\u4e3a %d \u7684\u8282\u70b9\\\\n&#034;<\/span><span class=\"token punctuation\">,<\/span> key<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">return<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u5220\u9664\u8282\u70b9<\/span><br \/>\n    prev<span class=\"token operator\">-&gt;<\/span>next <span class=\"token operator\">&#061;<\/span> cur<span class=\"token operator\">-&gt;<\/span>next<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token function\">free<\/span><span class=\"token punctuation\">(<\/span>cur<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h4>6. \u6253\u5370\u94fe\u8868<\/h4>\n<p><span class=\"token comment\">\/\/ \u6253\u5370\u94fe\u8868<\/span><br \/>\n<span class=\"token keyword\">void<\/span> <span class=\"token function\">printList<\/span><span class=\"token punctuation\">(<\/span>Node<span class=\"token operator\">*<\/span> head<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    Node<span class=\"token operator\">*<\/span> cur <span class=\"token operator\">&#061;<\/span> head<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">while<\/span> <span class=\"token punctuation\">(<\/span>cur <span class=\"token operator\">!&#061;<\/span> <span class=\"token constant\">NULL<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;%d -&gt; &#034;<\/span><span class=\"token punctuation\">,<\/span> cur<span class=\"token operator\">-&gt;<\/span>data<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        cur <span class=\"token operator\">&#061;<\/span> cur<span class=\"token operator\">-&gt;<\/span>next<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;NULL\\\\n&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h4>7. \u91ca\u653e\u94fe\u8868\u5185\u5b58<\/h4>\n<p><span class=\"token comment\">\/\/ \u91ca\u653e\u6574\u4e2a\u94fe\u8868<\/span><br \/>\n<span class=\"token keyword\">void<\/span> <span class=\"token function\">freeList<\/span><span class=\"token punctuation\">(<\/span>Node<span class=\"token operator\">*<\/span><span class=\"token operator\">*<\/span> head<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    Node<span class=\"token operator\">*<\/span> cur <span class=\"token operator\">&#061;<\/span> <span class=\"token operator\">*<\/span>head<span class=\"token punctuation\">;<\/span><br \/>\n    Node<span class=\"token operator\">*<\/span> temp<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">while<\/span> <span class=\"token punctuation\">(<\/span>cur <span class=\"token operator\">!&#061;<\/span> <span class=\"token constant\">NULL<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        temp <span class=\"token operator\">&#061;<\/span> cur<span class=\"token punctuation\">;<\/span><br \/>\n        cur <span class=\"token operator\">&#061;<\/span> cur<span class=\"token operator\">-&gt;<\/span>next<span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token function\">free<\/span><span class=\"token punctuation\">(<\/span>temp<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token operator\">*<\/span>head <span class=\"token operator\">&#061;<\/span> <span class=\"token constant\">NULL<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h4>8. \u6d4b\u8bd5\u4ee3\u7801<\/h4>\n<p><span class=\"token keyword\">int<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    Node<span class=\"token operator\">*<\/span> head <span class=\"token operator\">&#061;<\/span> <span class=\"token constant\">NULL<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token function\">append<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>head<span class=\"token punctuation\">,<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token function\">append<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>head<span class=\"token punctuation\">,<\/span> <span class=\"token number\">2<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token function\">append<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>head<span class=\"token punctuation\">,<\/span> <span class=\"token number\">3<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token function\">printList<\/span><span class=\"token punctuation\">(<\/span>head<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>          <span class=\"token comment\">\/\/ 1 -&gt; 2 -&gt; 3 -&gt; NULL<\/span><\/p>\n<p>    <span class=\"token function\">insertAfter<\/span><span class=\"token punctuation\">(<\/span>head<span class=\"token punctuation\">,<\/span> <span class=\"token number\">99<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token function\">printList<\/span><span class=\"token punctuation\">(<\/span>head<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>          <span class=\"token comment\">\/\/ 1 -&gt; 99 -&gt; 2 -&gt; 3 -&gt; NULL<\/span><\/p>\n<p>    <span class=\"token function\">deleteNode<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">&amp;<\/span>head<span class=\"token punctuation\">,<\/span> <span class=\"token number\">2<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token function\">printList<\/span><span class=\"token punctuation\">(<\/span>head<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>          <span class=\"token comment\">\/\/ 1 -&gt; 99 -&gt; 3 -&gt; NULL<\/span><\/p>\n<p>    <span class=\"token function\">freeList<\/span><span class=\"token punctuation\">(<\/span><span class=\"token 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