{"id":66480,"date":"2025-05-03T09:41:13","date_gmt":"2025-05-03T01:41:13","guid":{"rendered":"https:\/\/fwq.ai\/blog\/66480\/"},"modified":"2025-05-03T09:41:13","modified_gmt":"2025-05-03T01:41:13","slug":"%e6%80%8e%e4%b9%88%e5%88%a0%e9%99%a4%e6%95%b0%e7%bb%84%e4%b8%ad%e7%9a%84%e5%80%bcjava-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/66480\/","title":{"rendered":"\u600e\u4e48\u5220\u9664\u6570\u7ec4\u4e2d\u7684\u503cjava"},"content":{"rendered":"<blockquote><p>\n  \u8981\u5220\u9664 java \u6570\u7ec4\u4e2d\u7684\u503c\uff0c\u53ef\u4ee5\u4f7f\u7528\u4e24\u79cd\u65b9\u6cd5\uff1a\u4f7f\u7528 arrays.copyof() \u521b\u5efa\u539f\u59cb\u6570\u7ec4\u7684\u526f\u672c\uff0c\u7701\u7565\u6307\u5b9a\u7d22\u5f15\u5904\u7684\u5143\u7d20\u3002\u4f7f\u7528 system.arraycopy() \u5c06\u539f\u59cb\u6570\u7ec4\u7684\u90e8\u5206\u5185\u5bb9\u590d\u5236\u5230\u65b0\u6570\u7ec4\u4e2d\uff0c\u8df3\u8fc7\u8981\u5220\u9664\u7684\u5143\u7d20\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/16\/2024111604400064008.jpg\" class=\"aligncenter\" title=\"\u600e\u4e48\u5220\u9664\u6570\u7ec4\u4e2d\u7684\u503cjava\u63d2\u56fe\" alt=\"\u600e\u4e48\u5220\u9664\u6570\u7ec4\u4e2d\u7684\u503cjava\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u5220\u9664\u6570\u7ec4\u4e2d\u7684\u503c\uff08Java\uff09<\/strong><\/p>\n<p><strong>\u56de\u7b54\uff1a<\/strong><\/p>\n<p>\u8981\u5220\u9664 Java \u6570\u7ec4\u4e2d\u7684\u503c\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4e24\u79cd\u65b9\u6cd5\uff1a<\/p>\n<p><strong>\u65b9\u6cd5 1\uff1a\u4f7f\u7528 Arrays.copyOf()<\/strong><\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<p>\u6b64\u65b9\u6cd5\u521b\u5efa\u4e00\u4e2a\u65b0\u6570\u7ec4\uff0c\u5176\u4e2d\u5305\u542b\u539f\u59cb\u6570\u7ec4\u4e2d\u6240\u6709\u5143\u7d20\uff0c\u4f46\u7701\u7565\u8981\u5220\u9664\u7684\u5143\u7d20\u3002<\/p>\n<p><strong>\u8bed\u6cd5\uff1a<\/strong><\/p>\n<pre>int[] newArray = Arrays.copyOf(originalArray, originalArray.length - 1);<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u65b9\u6cd5 2\uff1a\u4f7f\u7528 System.arraycopy()<\/strong><\/p>\n<p>\u6b64\u65b9\u6cd5\u5c06\u539f\u59cb\u6570\u7ec4\u7684\u90e8\u5206\u5185\u5bb9\u590d\u5236\u5230\u65b0\u6570\u7ec4\u4e2d\uff0c\u8df3\u8fc7\u8981\u5220\u9664\u7684\u5143\u7d20\u3002<\/p>\n<p><strong>\u8bed\u6cd5\uff1a<\/strong><\/p>\n<pre>int[] newArray = new int[originalArray.length - 1];\nSystem.arraycopy(originalArray, 0, newArray, 0, index); \/\/ \u590d\u5236\u5230\u5220\u9664\u70b9\u4e4b\u524d\u7684\u5185\u5bb9\nSystem.arraycopy(originalArray, index + 1, newArray, index, originalArray.length - index - 1); \/\/ \u590d\u5236\u5220\u9664\u70b9\u4e4b\u540e\u7684\u5185\u5bb9<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u5c55\u5f00\u56de\u7b54\uff1a<\/strong><\/p>\n<p><strong>\u4f7f\u7528 Arrays.copyOf() \u5220\u9664\u503c<\/strong><\/p>\n<p>\u8be5\u65b9\u6cd5\u7b80\u5355\u4e14\u6613\u4e8e\u4f7f\u7528\uff0c\u5b83\u521b\u5efa\u4e86\u4e00\u4e2a\u539f\u59cb\u6570\u7ec4\u7684\u526f\u672c\uff0c\u4f46\u7701\u7565\u4e86\u6307\u5b9a\u7d22\u5f15\u5904\u7684\u5143\u7d20\u3002\u539f\u59cb\u6570\u7ec4\u4fdd\u6301\u4e0d\u53d8\u3002<\/p>\n<p><strong>\u4f7f\u7528 System.arraycopy() \u5220\u9664\u503c<\/strong><\/p>\n<p>\u8be5\u65b9\u6cd5\u9700\u8981\u66f4\u591a\u6b65\u9aa4\uff0c\u4f46\u5b83\u5141\u8bb8\u66f4\u7075\u6d3b\u5730\u5220\u9664\u591a\u4e2a\u5143\u7d20\u6216\u4fee\u6539\u6570\u7ec4\u7684\u5927\u5c0f\u3002\u8be5\u65b9\u6cd5\u8fd8\u521b\u5efa\u4e86\u539f\u59cb\u6570\u7ec4\u7684\u526f\u672c\uff0c\u8df3\u8fc7\u4e86\u8981\u5220\u9664\u7684\u5143\u7d20\u3002<\/p>\n<p><strong>\u793a\u4f8b\uff1a<\/strong><\/p>\n<p>\u5220\u9664\u6570\u7ec4 originalArray \u4e2d\u7d22\u5f15\u4e3a 2 \u7684\u5143\u7d20\uff1a<\/p>\n<p><strong>\u65b9\u6cd5 1\uff1a<\/strong><\/p>\n<pre>int[] newArray = Arrays.copyOf(originalArray, originalArray.length - 1);<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u65b9\u6cd5 2\uff1a<\/strong><\/p>\n<pre>int[] newArray = new int[originalArray.length - 1];\nSystem.arraycopy(originalArray, 0, newArray, 0, 2); \/\/ \u590d\u5236\u5230\u5220\u9664\u70b9\u4e4b\u524d\u7684\u5185\u5bb9\nSystem.arraycopy(originalArray, 3, newArray, 2, originalArray.length - 3); \/\/ \u590d\u5236\u5220\u9664\u70b9\u4e4b\u540e\u7684\u5185\u5bb9<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u6ce8\u610f\uff1a<\/strong><\/p>\n<ul>\n<li>\u5982\u679c\u5c1d\u8bd5\u5220\u9664\u4e0d\u5b58\u5728\u7684\u7d22\u5f15\u5904\u7684\u5143\u7d20\uff0c\u4f1a\u629b\u51fa IndexOutOfBoundsException \u5f02\u5e38\u3002<\/li>\n<li>\u8fd9\u4e24\u79cd\u65b9\u6cd5\u90fd\u4e0d\u4f1a\u4fee\u6539\u539f\u59cb\u6570\u7ec4\u3002<\/li>\n<\/ul>\n<p>\u4ee5\u4e0a\u5c31\u662f\u600e\u4e48\u5220\u9664\u6570\u7ec4\u4e2d\u7684\u503cjava\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8IDCBABY\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u8981\u5220\u9664 java \u6570\u7ec4\u4e2d\u7684\u503c\uff0c\u53ef\u4ee5\u4f7f\u7528\u4e24\u79cd\u65b9\u6cd5\uff1a\u4f7f\u7528 arrays.copyof() \u521b\u5efa\u539f\u59cb\u6570\u7ec4\u7684\u526f\u672c\uff0c\u7701\u7565\u6307\u5b9a\u7d22\u5f15\u5904\u7684\u5143\u7d20\u3002\u4f7f\u7528 system.arraycopy() \u5c06\u539f\u59cb\u6570\u7ec4\u7684\u90e8\u5206\u5185\u5bb9\u590d\u5236\u5230\u65b0\u6570\u7ec4\u4e2d\uff0c\u8df3\u8fc7\u8981\u5220\u9664\u7684\u5143\u7d20\u3002 \u5982\u4f55\u5220\u9664\u6570\u7ec4\u4e2d\u7684\u503c\uff08Java\uff09 \u56de\u7b54\uff1a \u8981\u5220\u9664 Java \u6570\u7ec4\u4e2d\u7684\u503c\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4e24\u79cd\u65b9\u6cd5\uff1a \u65b9\u6cd5 1\uff1a\u4f7f\u7528 Arrays.copyOf() \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b \u6b64\u65b9\u6cd5\u521b\u5efa\u4e00\u4e2a\u65b0\u6570\u7ec4\uff0c\u5176\u4e2d\u5305\u542b\u539f\u59cb\u6570\u7ec4\u4e2d\u6240\u6709\u5143\u7d20\uff0c\u4f46\u7701\u7565\u8981\u5220\u9664\u7684\u5143\u7d20\u3002 \u8bed\u6cd5\uff1a int[] newArray = Arrays.copyOf(originalArray, originalArray.length &#8211; 1); \u767b\u5f55\u540e\u590d\u5236 \u767b\u5f55\u540e\u590d\u5236 \u65b9\u6cd5 2\uff1a\u4f7f\u7528 System.arraycopy() \u6b64\u65b9\u6cd5\u5c06\u539f\u59cb\u6570\u7ec4\u7684\u90e8\u5206\u5185\u5bb9\u590d\u5236\u5230\u65b0\u6570\u7ec4\u4e2d\uff0c\u8df3\u8fc7\u8981\u5220\u9664\u7684\u5143\u7d20\u3002 \u8bed\u6cd5\uff1a int[] newArray = new int[originalArray.length &#8211; 1]; System.arraycopy(originalArray, 0, newArray, 0, index); \/\/ \u590d\u5236\u5230\u5220\u9664\u70b9\u4e4b\u524d\u7684\u5185\u5bb9 System.arraycopy(originalArray, index + 1, newArray, index, originalArray.length &#8211; index [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-66480","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/66480","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=66480"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/66480\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=66480"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=66480"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=66480"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}