{"id":44746,"date":"2023-09-15T00:45:49","date_gmt":"2022-12-22T01:56:08","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/44746-2\/"},"modified":"2024-05-03T23:46:56","modified_gmt":"2024-05-03T15:46:56","slug":"44746-2","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/44746-2\/","title":{"rendered":""},"content":{"rendered":"<h1>\u4f55\u304c\u66f8\u3044\u3066\u3042\u308b\u304b<\/h1>\n<p>Btree\u306eGo\u3067\u306e\u5b9f\u88c5\u4f8b\u3002\u5099\u5fd8\u9332\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"c\">\/\/ \u7bc0\u30fb\u8449\u306b\u6301\u305f\u305b\u308b\u6a5f\u80fd\u306e\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9<\/span>\r\n<span class=\"k\">type<\/span> <span class=\"n\">Item<\/span> <span class=\"k\">interface<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"n\">Eq<\/span><span class=\"p\">(<\/span><span class=\"n\">Item<\/span><span class=\"p\">)<\/span>   <span class=\"kt\">bool<\/span>\r\n    <span class=\"n\">Less<\/span><span class=\"p\">(<\/span><span class=\"n\">Item<\/span><span class=\"p\">)<\/span> <span class=\"kt\">bool<\/span>\r\n<span class=\"p\">}<\/span>\r\n<span class=\"c\">\/\/ \u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306e\u5b9f\u88c5<\/span>\r\n<span class=\"k\">type<\/span> <span class=\"n\">Int<\/span> <span class=\"kt\">int<\/span>\r\n<span class=\"k\">func<\/span> <span class=\"p\">(<\/span><span class=\"n\">n<\/span> <span class=\"n\">Int<\/span><span class=\"p\">)<\/span> <span class=\"n\">Eq<\/span><span class=\"p\">(<\/span><span class=\"n\">m<\/span> <span class=\"n\">Item<\/span><span class=\"p\">)<\/span> <span class=\"kt\">bool<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">return<\/span> <span class=\"n\">n<\/span> <span class=\"o\">==<\/span> <span class=\"n\">m<\/span><span class=\"o\">.<\/span><span class=\"p\">(<\/span><span class=\"n\">Int<\/span><span class=\"p\">)<\/span>\r\n<span class=\"p\">}<\/span>\r\n<span class=\"k\">func<\/span> <span class=\"p\">(<\/span><span class=\"n\">n<\/span> <span class=\"n\">Int<\/span><span class=\"p\">)<\/span> <span class=\"n\">Less<\/span><span class=\"p\">(<\/span><span class=\"n\">m<\/span> <span class=\"n\">Item<\/span><span class=\"p\">)<\/span> <span class=\"kt\">bool<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">return<\/span> <span class=\"n\">n<\/span> <span class=\"o\">&lt;<\/span> <span class=\"n\">m<\/span><span class=\"o\">.<\/span><span class=\"p\">(<\/span><span class=\"n\">Int<\/span><span class=\"p\">)<\/span>\r\n<span class=\"p\">}<\/span>\r\n<span class=\"c\">\/\/ \u7bc0\u30fb\u8449\u306e\u69cb\u9020<\/span>\r\n<span class=\"k\">type<\/span> <span class=\"n\">Node<\/span> <span class=\"k\">struct<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"n\">item<\/span> <span class=\"n\">Item<\/span>\r\n    <span class=\"n\">left<\/span><span class=\"p\">,<\/span> <span class=\"n\">right<\/span> <span class=\"o\">*<\/span><span class=\"n\">Node<\/span>\r\n<span class=\"p\">}<\/span>\r\n<span class=\"c\">\/\/ \u7bc0\u30fb\u8449\u306e\u4f5c\u6210<\/span>\r\n<span class=\"k\">func<\/span> <span class=\"n\">newNode<\/span><span class=\"p\">(<\/span><span class=\"n\">x<\/span> <span class=\"n\">Item<\/span><span class=\"p\">)<\/span> <span class=\"o\">*<\/span><span class=\"n\">Node<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"n\">p<\/span> <span class=\"o\">:=<\/span> <span class=\"nb\">new<\/span><span class=\"p\">(<\/span><span class=\"n\">Node<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"n\">p<\/span><span class=\"o\">.<\/span><span class=\"n\">item<\/span> <span class=\"o\">=<\/span> <span class=\"n\">x<\/span>\r\n    <span class=\"k\">return<\/span> <span class=\"n\">p<\/span>\r\n<span class=\"p\">}<\/span>\r\n<span class=\"c\">\/\/ \u4e8c\u5206\u6728<\/span>\r\n<span class=\"k\">type<\/span> <span class=\"n\">Tree<\/span> <span class=\"k\">struct<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"n\">root<\/span> <span class=\"o\">*<\/span><span class=\"n\">Node<\/span>\r\n<span class=\"p\">}<\/span>\r\n<span class=\"c\">\/\/ \u4e8c\u5206\u6728\u306e\u751f\u6210<\/span>\r\n<span class=\"k\">func<\/span> <span class=\"n\">newTree<\/span><span class=\"p\">()<\/span> <span class=\"o\">*<\/span><span class=\"n\">Tree<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">return<\/span> <span class=\"nb\">new<\/span><span class=\"p\">(<\/span><span class=\"n\">Tree<\/span><span class=\"p\">)<\/span>\r\n<span class=\"p\">}<\/span>\r\n<span class=\"c\">\/\/ \u30c7\u30fc\u30bf\u306e\u63a2\u7d22<\/span>\r\n<span class=\"k\">func<\/span> <span class=\"p\">(<\/span><span class=\"n\">t<\/span> <span class=\"o\">*<\/span><span class=\"n\">Tree<\/span><span class=\"p\">)<\/span> <span class=\"n\">searchTree<\/span><span class=\"p\">(<\/span><span class=\"n\">x<\/span> <span class=\"n\">Item<\/span><span class=\"p\">)<\/span> <span class=\"kt\">bool<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">return<\/span> <span class=\"n\">searchNode<\/span><span class=\"p\">(<\/span><span class=\"n\">t<\/span><span class=\"o\">.<\/span><span class=\"n\">root<\/span><span class=\"p\">,<\/span> <span class=\"n\">x<\/span><span class=\"p\">)<\/span>\r\n<span class=\"p\">}<\/span>\r\n<span class=\"c\">\/\/ \u6728\u3078\u306e\u633f\u5165<\/span>\r\n<span class=\"k\">func<\/span> <span class=\"p\">(<\/span><span class=\"n\">t<\/span> <span class=\"o\">*<\/span><span class=\"n\">Tree<\/span><span class=\"p\">)<\/span> <span class=\"n\">insertTree<\/span><span class=\"p\">(<\/span><span class=\"n\">x<\/span> <span class=\"n\">Item<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"n\">t<\/span><span class=\"o\">.<\/span><span class=\"n\">root<\/span> <span class=\"o\">=<\/span> <span class=\"n\">insertNode<\/span><span class=\"p\">(<\/span><span class=\"n\">t<\/span><span class=\"o\">.<\/span><span class=\"n\">root<\/span><span class=\"p\">,<\/span> <span class=\"n\">x<\/span><span class=\"p\">)<\/span>\r\n<span class=\"p\">}<\/span>\r\n<span class=\"c\">\/\/ \u7bc0\u30fb\u8449\u306e\u633f\u5165<\/span>\r\n<span class=\"k\">func<\/span> <span class=\"n\">insertNode<\/span><span class=\"p\">(<\/span><span class=\"n\">node<\/span> <span class=\"o\">*<\/span><span class=\"n\">Node<\/span><span class=\"p\">,<\/span> <span class=\"n\">x<\/span> <span class=\"n\">Item<\/span><span class=\"p\">)<\/span> <span class=\"o\">*<\/span><span class=\"n\">Node<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">switch<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">case<\/span> <span class=\"n\">node<\/span> <span class=\"o\">==<\/span> <span class=\"no\">nil<\/span><span class=\"o\">:<\/span> <span class=\"k\">return<\/span> <span class=\"n\">newNode<\/span><span class=\"p\">(<\/span><span class=\"n\">x<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"k\">case<\/span> <span class=\"n\">x<\/span><span class=\"o\">.<\/span><span class=\"n\">Eq<\/span><span class=\"p\">(<\/span><span class=\"n\">node<\/span><span class=\"o\">.<\/span><span class=\"n\">item<\/span><span class=\"p\">)<\/span><span class=\"o\">:<\/span> <span class=\"k\">return<\/span> <span class=\"n\">node<\/span>\r\n    <span class=\"k\">case<\/span> <span class=\"n\">x<\/span><span class=\"o\">.<\/span><span class=\"n\">Less<\/span><span class=\"p\">(<\/span><span class=\"n\">node<\/span><span class=\"o\">.<\/span><span class=\"n\">item<\/span><span class=\"p\">)<\/span><span class=\"o\">:<\/span>\r\n        <span class=\"n\">node<\/span><span class=\"o\">.<\/span><span class=\"n\">left<\/span> <span class=\"o\">=<\/span> <span class=\"n\">insertNode<\/span><span class=\"p\">(<\/span><span class=\"n\">node<\/span><span class=\"o\">.<\/span><span class=\"n\">left<\/span><span class=\"p\">,<\/span> <span class=\"n\">x<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"k\">default<\/span><span class=\"o\">:<\/span>\r\n        <span class=\"n\">node<\/span><span class=\"o\">.<\/span><span class=\"n\">right<\/span> <span class=\"o\">=<\/span> <span class=\"n\">insertNode<\/span><span class=\"p\">(<\/span><span class=\"n\">node<\/span><span class=\"o\">.<\/span><span class=\"n\">right<\/span><span class=\"p\">,<\/span> <span class=\"n\">x<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"p\">}<\/span>\r\n    <span class=\"k\">return<\/span> <span class=\"n\">node<\/span>\r\n<span class=\"p\">}<\/span>\r\n<span class=\"c\">\/\/ \u7bc0\u30fb\u8449\u306e\u63a2\u7d22<\/span>\r\n<span class=\"k\">func<\/span> <span class=\"n\">searchNode<\/span><span class=\"p\">(<\/span><span class=\"n\">node<\/span> <span class=\"o\">*<\/span><span class=\"n\">Node<\/span><span class=\"p\">,<\/span> <span class=\"n\">x<\/span> <span class=\"n\">Item<\/span><span class=\"p\">)<\/span> <span class=\"kt\">bool<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">for<\/span> <span class=\"n\">node<\/span> <span class=\"o\">!=<\/span> <span class=\"no\">nil<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"k\">switch<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"k\">case<\/span> <span class=\"n\">x<\/span><span class=\"o\">.<\/span><span class=\"n\">Eq<\/span><span class=\"p\">(<\/span><span class=\"n\">node<\/span><span class=\"o\">.<\/span><span class=\"n\">item<\/span><span class=\"p\">)<\/span><span class=\"o\">:<\/span> <span class=\"k\">return<\/span> <span class=\"no\">true<\/span>\r\n        <span class=\"k\">case<\/span> <span class=\"n\">x<\/span><span class=\"o\">.<\/span><span class=\"n\">Less<\/span><span class=\"p\">(<\/span><span class=\"n\">node<\/span><span class=\"o\">.<\/span><span class=\"n\">item<\/span><span class=\"p\">)<\/span><span class=\"o\">:<\/span> <span class=\"n\">node<\/span> <span class=\"o\">=<\/span> <span class=\"n\">node<\/span><span class=\"o\">.<\/span><span class=\"n\">left<\/span>\r\n        <span class=\"k\">default<\/span><span class=\"o\">:<\/span> <span class=\"n\">node<\/span> <span class=\"o\">=<\/span> <span class=\"n\">node<\/span><span class=\"o\">.<\/span><span class=\"n\">right<\/span>\r\n        <span class=\"p\">}<\/span>\r\n    <span class=\"p\">}<\/span>\r\n    <span class=\"k\">return<\/span> <span class=\"no\">false<\/span>\r\n<span class=\"p\">}<\/span>\r\n<span class=\"c\">\/\/ \u6728\u306e\u30c0\u30f3\u30d7<\/span>\r\n<span class=\"k\">func<\/span> <span class=\"p\">(<\/span><span class=\"n\">t<\/span> <span class=\"o\">*<\/span><span class=\"n\">Tree<\/span><span class=\"p\">)<\/span> <span class=\"n\">printTree<\/span><span class=\"p\">()<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"n\">t<\/span><span class=\"o\">.<\/span><span class=\"n\">foreachTree<\/span><span class=\"p\">(<\/span><span class=\"k\">func<\/span><span class=\"p\">(<\/span><span class=\"n\">x<\/span> <span class=\"n\">Item<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span> <span class=\"n\">fmt<\/span><span class=\"o\">.<\/span><span class=\"n\">Print<\/span><span class=\"p\">(<\/span><span class=\"n\">x<\/span><span class=\"p\">,<\/span> <span class=\"s\">\" \"<\/span><span class=\"p\">)<\/span> <span class=\"p\">})<\/span>\r\n    <span class=\"n\">fmt<\/span><span class=\"o\">.<\/span><span class=\"n\">Println<\/span><span class=\"p\">(<\/span><span class=\"s\">\"\"<\/span><span class=\"p\">)<\/span>\r\n<span class=\"p\">}<\/span>\r\n<span class=\"c\">\/\/ \u6728\u304b\u3089\u306e\u524a\u9664<\/span>\r\n<span class=\"k\">func<\/span> <span class=\"p\">(<\/span><span class=\"n\">t<\/span> <span class=\"o\">*<\/span><span class=\"n\">Tree<\/span><span class=\"p\">)<\/span> <span class=\"n\">deleteTree<\/span><span class=\"p\">(<\/span><span class=\"n\">x<\/span> <span class=\"n\">Item<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"n\">t<\/span><span class=\"o\">.<\/span><span class=\"n\">root<\/span> <span class=\"o\">=<\/span> <span class=\"n\">deleteNode<\/span><span class=\"p\">(<\/span><span class=\"n\">t<\/span><span class=\"o\">.<\/span><span class=\"n\">root<\/span><span class=\"p\">,<\/span> <span class=\"n\">x<\/span><span class=\"p\">)<\/span>\r\n<span class=\"p\">}<\/span>\r\n<span class=\"c\">\/\/ \u7bc0\u30fb\u8449\u306e\u524a\u9664<\/span>\r\n<span class=\"k\">func<\/span> <span class=\"n\">deleteNode<\/span><span class=\"p\">(<\/span><span class=\"n\">node<\/span> <span class=\"o\">*<\/span><span class=\"n\">Node<\/span><span class=\"p\">,<\/span> <span class=\"n\">x<\/span> <span class=\"n\">Item<\/span><span class=\"p\">)<\/span> <span class=\"o\">*<\/span><span class=\"n\">Node<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">if<\/span> <span class=\"n\">node<\/span> <span class=\"o\">!=<\/span> <span class=\"no\">nil<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"k\">if<\/span> <span class=\"n\">x<\/span><span class=\"o\">.<\/span><span class=\"n\">Eq<\/span><span class=\"p\">(<\/span><span class=\"n\">node<\/span><span class=\"o\">.<\/span><span class=\"n\">item<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n            <span class=\"k\">if<\/span> <span class=\"n\">node<\/span><span class=\"o\">.<\/span><span class=\"n\">left<\/span> <span class=\"o\">==<\/span> <span class=\"no\">nil<\/span> <span class=\"p\">{<\/span>\r\n                <span class=\"k\">return<\/span> <span class=\"n\">node<\/span><span class=\"o\">.<\/span><span class=\"n\">right<\/span>\r\n            <span class=\"p\">}<\/span> <span class=\"k\">else<\/span> <span class=\"k\">if<\/span> <span class=\"n\">node<\/span><span class=\"o\">.<\/span><span class=\"n\">right<\/span> <span class=\"o\">==<\/span> <span class=\"no\">nil<\/span> <span class=\"p\">{<\/span>\r\n                <span class=\"k\">return<\/span> <span class=\"n\">node<\/span><span class=\"o\">.<\/span><span class=\"n\">left<\/span>\r\n            <span class=\"p\">}<\/span> <span class=\"k\">else<\/span> <span class=\"p\">{<\/span>\r\n                <span class=\"n\">node<\/span><span class=\"o\">.<\/span><span class=\"n\">item<\/span> <span class=\"o\">=<\/span> <span class=\"n\">searchMin<\/span><span class=\"p\">(<\/span><span class=\"n\">node<\/span><span class=\"o\">.<\/span><span class=\"n\">right<\/span><span class=\"p\">)<\/span>\r\n                <span class=\"n\">node<\/span><span class=\"o\">.<\/span><span class=\"n\">right<\/span> <span class=\"o\">=<\/span> <span class=\"n\">deleteMin<\/span><span class=\"p\">(<\/span><span class=\"n\">node<\/span><span class=\"o\">.<\/span><span class=\"n\">right<\/span><span class=\"p\">)<\/span>\r\n            <span class=\"p\">}<\/span>\r\n        <span class=\"p\">}<\/span> <span class=\"k\">else<\/span> <span class=\"k\">if<\/span> <span class=\"n\">x<\/span><span class=\"o\">.<\/span><span class=\"n\">Less<\/span><span class=\"p\">(<\/span><span class=\"n\">node<\/span><span class=\"o\">.<\/span><span class=\"n\">item<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n            <span class=\"n\">node<\/span><span class=\"o\">.<\/span><span class=\"n\">left<\/span> <span class=\"o\">=<\/span> <span class=\"n\">deleteNode<\/span><span class=\"p\">(<\/span><span class=\"n\">node<\/span><span class=\"o\">.<\/span><span class=\"n\">left<\/span><span class=\"p\">,<\/span> <span class=\"n\">x<\/span><span class=\"p\">)<\/span>\r\n        <span class=\"p\">}<\/span> <span class=\"k\">else<\/span> <span class=\"p\">{<\/span>\r\n            <span class=\"n\">node<\/span><span class=\"o\">.<\/span><span class=\"n\">right<\/span> <span class=\"o\">=<\/span> <span class=\"n\">deleteNode<\/span><span class=\"p\">(<\/span><span class=\"n\">node<\/span><span class=\"o\">.<\/span><span class=\"n\">right<\/span><span class=\"p\">,<\/span> <span class=\"n\">x<\/span><span class=\"p\">)<\/span>\r\n        <span class=\"p\">}<\/span>\r\n    <span class=\"p\">}<\/span>\r\n    <span class=\"k\">return<\/span> <span class=\"n\">node<\/span>\r\n<span class=\"p\">}<\/span>\r\n<span class=\"c\">\/\/ \u6700\u5c0f\u5024\u3092\u6c42\u3081\u308b<\/span>\r\n<span class=\"k\">func<\/span> <span class=\"n\">searchMin<\/span><span class=\"p\">(<\/span><span class=\"n\">node<\/span> <span class=\"o\">*<\/span><span class=\"n\">Node<\/span><span class=\"p\">)<\/span> <span class=\"n\">Item<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">if<\/span> <span class=\"n\">node<\/span><span class=\"o\">.<\/span><span class=\"n\">left<\/span> <span class=\"o\">==<\/span> <span class=\"no\">nil<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"k\">return<\/span> <span class=\"n\">node<\/span><span class=\"o\">.<\/span><span class=\"n\">item<\/span>\r\n    <span class=\"p\">}<\/span>\r\n    <span class=\"k\">return<\/span> <span class=\"n\">searchMin<\/span><span class=\"p\">(<\/span><span class=\"n\">node<\/span><span class=\"o\">.<\/span><span class=\"n\">left<\/span><span class=\"p\">)<\/span>\r\n<span class=\"p\">}<\/span>\r\n<span class=\"c\">\/\/ \u6700\u5c0f\u5024\u3092\u524a\u9664\u3059\u308b<\/span>\r\n<span class=\"k\">func<\/span> <span class=\"n\">deleteMin<\/span><span class=\"p\">(<\/span><span class=\"n\">node<\/span> <span class=\"o\">*<\/span><span class=\"n\">Node<\/span><span class=\"p\">)<\/span> <span class=\"o\">*<\/span><span class=\"n\">Node<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">if<\/span> <span class=\"n\">node<\/span><span class=\"o\">.<\/span><span class=\"n\">left<\/span> <span class=\"o\">==<\/span> <span class=\"no\">nil<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"k\">return<\/span> <span class=\"n\">node<\/span><span class=\"o\">.<\/span><span class=\"n\">right<\/span>\r\n    <span class=\"p\">}<\/span>\r\n    <span class=\"n\">node<\/span><span class=\"o\">.<\/span><span class=\"n\">left<\/span> <span class=\"o\">=<\/span> <span class=\"n\">deleteMin<\/span><span class=\"p\">(<\/span><span class=\"n\">node<\/span><span class=\"o\">.<\/span><span class=\"n\">left<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"k\">return<\/span> <span class=\"n\">node<\/span>\r\n<span class=\"p\">}<\/span>\r\n<span class=\"c\">\/\/ \u5de1\u56de<\/span>\r\n<span class=\"k\">func<\/span> <span class=\"n\">foreachNode<\/span><span class=\"p\">(<\/span><span class=\"n\">f<\/span> <span class=\"k\">func<\/span><span class=\"p\">(<\/span><span class=\"n\">Item<\/span><span class=\"p\">),<\/span> <span class=\"n\">node<\/span> <span class=\"o\">*<\/span><span class=\"n\">Node<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">if<\/span> <span class=\"n\">node<\/span> <span class=\"o\">!=<\/span> <span class=\"no\">nil<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"n\">foreachNode<\/span><span class=\"p\">(<\/span><span class=\"n\">f<\/span><span class=\"p\">,<\/span> <span class=\"n\">node<\/span><span class=\"o\">.<\/span><span class=\"n\">left<\/span><span class=\"p\">)<\/span>\r\n        <span class=\"n\">f<\/span><span class=\"p\">(<\/span><span class=\"n\">node<\/span><span class=\"o\">.<\/span><span class=\"n\">item<\/span><span class=\"p\">)<\/span>\r\n        <span class=\"n\">foreachNode<\/span><span class=\"p\">(<\/span><span class=\"n\">f<\/span><span class=\"p\">,<\/span> <span class=\"n\">node<\/span><span class=\"o\">.<\/span><span class=\"n\">right<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"p\">}<\/span>\r\n<span class=\"p\">}<\/span>\r\n<span class=\"k\">func<\/span> <span class=\"p\">(<\/span><span class=\"n\">t<\/span> <span class=\"o\">*<\/span><span class=\"n\">Tree<\/span><span class=\"p\">)<\/span> <span class=\"n\">foreachTree<\/span><span class=\"p\">(<\/span><span class=\"n\">f<\/span> <span class=\"k\">func<\/span><span class=\"p\">(<\/span><span class=\"n\">Item<\/span><span class=\"p\">))<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"n\">foreachNode<\/span><span class=\"p\">(<\/span><span class=\"n\">f<\/span><span class=\"p\">,<\/span> <span class=\"n\">t<\/span><span class=\"o\">.<\/span><span class=\"n\">root<\/span><span class=\"p\">)<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"k\">func<\/span> <span class=\"n\">main<\/span><span class=\"p\">(){<\/span>\r\n    <span class=\"n\">a<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">newTree<\/span><span class=\"p\">()<\/span>\r\n    <span class=\"k\">for<\/span> <span class=\"n\">_<\/span><span class=\"p\">,<\/span> <span class=\"n\">v<\/span> <span class=\"o\">:=<\/span> <span class=\"k\">range<\/span> <span class=\"p\">[]<\/span><span class=\"kt\">int<\/span><span class=\"p\">{<\/span><span class=\"m\">5<\/span><span class=\"p\">,<\/span><span class=\"m\">6<\/span><span class=\"p\">,<\/span><span class=\"m\">4<\/span><span class=\"p\">,<\/span><span class=\"m\">7<\/span><span class=\"p\">,<\/span><span class=\"m\">3<\/span><span class=\"p\">,<\/span><span class=\"m\">8<\/span><span class=\"p\">,<\/span><span class=\"m\">2<\/span><span class=\"p\">,<\/span><span class=\"m\">9<\/span><span class=\"p\">,<\/span><span class=\"m\">1<\/span><span class=\"p\">,<\/span><span class=\"m\">0<\/span><span class=\"p\">}<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"n\">a<\/span><span class=\"o\">.<\/span><span class=\"n\">insertTree<\/span><span class=\"p\">(<\/span><span class=\"n\">Int<\/span><span class=\"p\">(<\/span><span class=\"n\">v<\/span><span class=\"p\">))<\/span>\r\n    <span class=\"p\">}<\/span>\r\n    <span class=\"n\">a<\/span><span class=\"o\">.<\/span><span class=\"n\">printTree<\/span><span class=\"p\">()<\/span>\r\n    <span class=\"k\">for<\/span> <span class=\"n\">i<\/span> <span class=\"o\">:=<\/span> <span class=\"m\">0<\/span><span class=\"p\">;<\/span> <span class=\"n\">i<\/span> <span class=\"o\">&lt;<\/span> <span class=\"m\">10<\/span><span class=\"p\">;<\/span> <span class=\"n\">i<\/span><span class=\"o\">++<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"n\">fmt<\/span><span class=\"o\">.<\/span><span class=\"n\">Println<\/span><span class=\"p\">(<\/span><span class=\"n\">a<\/span><span class=\"o\">.<\/span><span class=\"n\">searchTree<\/span><span class=\"p\">(<\/span><span class=\"n\">Int<\/span><span class=\"p\">(<\/span><span class=\"n\">i<\/span><span class=\"p\">)))<\/span>\r\n    <span class=\"p\">}<\/span>\r\n    <span class=\"k\">for<\/span> <span class=\"n\">i<\/span> <span class=\"o\">:=<\/span> <span class=\"m\">0<\/span><span class=\"p\">;<\/span> <span class=\"n\">i<\/span> <span class=\"o\">&lt;<\/span> <span class=\"m\">10<\/span><span class=\"p\">;<\/span> <span class=\"n\">i<\/span><span class=\"o\">++<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"n\">a<\/span><span class=\"o\">.<\/span><span class=\"n\">deleteTree<\/span><span class=\"p\">(<\/span><span class=\"n\">Int<\/span><span class=\"p\">(<\/span><span class=\"n\">i<\/span><span class=\"p\">))<\/span>\r\n        <span class=\"n\">a<\/span><span class=\"o\">.<\/span><span class=\"n\">printTree<\/span><span class=\"p\">()<\/span>\r\n    <span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>\u4f55\u304c\u66f8\u3044\u3066\u3042\u308b\u304b Btree\u306eGo\u3067\u306e\u5b9f\u88c5\u4f8b\u3002\u5099\u5fd8\u9332\u3002 \/\/ \u7bc0\u30fb\u8449\u306b\u6301\u305f\u305b\u308b\u6a5f\u80fd\u306e\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9 type [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-44746","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>- Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/zh\/blog\/44746-2\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:description\" content=\"\u4f55\u304c\u66f8\u3044\u3066\u3042\u308b\u304b Btree\u306eGo\u3067\u306e\u5b9f\u88c5\u4f8b\u3002\u5099\u5fd8\u9332\u3002 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