{"id":37170,"date":"2024-11-26T12:36:55","date_gmt":"2024-11-26T04:36:55","guid":{"rendered":"https:\/\/fwq.ai\/blog\/37170\/"},"modified":"2024-11-26T12:36:55","modified_gmt":"2024-11-26T04:36:55","slug":"java%e5%a4%8d%e5%88%b6%e6%95%b0%e7%bb%84%e6%80%8e%e4%b9%88%e5%bc%84","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/37170\/","title":{"rendered":"java\u590d\u5236\u6570\u7ec4\u600e\u4e48\u5f04"},"content":{"rendered":"<blockquote><p>\n  \u5728 java \u4e2d\u590d\u5236\u6570\u7ec4\u6709\u4e24\u79cd\u65b9\u6cd5\uff1a\u4f7f\u7528 system.arraycopy() \u65b9\u6cd5\u8fdb\u884c\u6570\u7ec4\u590d\u5236\uff0c\u9010\u4e2a\u5143\u7d20\u4ece\u6e90\u6570\u7ec4\u590d\u5236\u5230\u65b0\u6570\u7ec4\u3002\u5982\u679c\u6570\u7ec4\u5bf9\u8c61\u5b9e\u73b0\u4e86 cloneable \u63a5\u53e3\uff0c\u53ef\u4ee5\u4f7f\u7528 clone() \u65b9\u6cd5\u8fdb\u884c\u514b\u9686\uff0c\u521b\u5efa\u4e00\u4e2a\u65b0\u6570\u7ec4\u5e76\u5f15\u7528\u76f8\u540c\u7684\u5185\u90e8\u6570\u7ec4\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/13\/2024111302153183775.jpg\" class=\"aligncenter\" title=\"java\u590d\u5236\u6570\u7ec4\u600e\u4e48\u5f04\u63d2\u56fe\" alt=\"java\u590d\u5236\u6570\u7ec4\u600e\u4e48\u5f04\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u5728 Java \u4e2d\u590d\u5236\u6570\u7ec4<\/strong><\/p>\n<p><strong>\u56de\u7b54\uff1a<\/strong><br \/>\u5728 Java \u4e2d\u590d\u5236\u6570\u7ec4\u6709\u4e24\u79cd\u65b9\u6cd5\uff1a\u6570\u7ec4\u590d\u5236\u548c\u514b\u9686\u3002<\/p>\n<p><strong>\u65b9\u6cd5 1\uff1a\u6570\u7ec4\u590d\u5236<\/strong><\/p>\n<p>\u4f7f\u7528 System.arraycopy() \u65b9\u6cd5\uff1a<\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<pre>int[] arr1 = {1, 2, 3, 4, 5};\nint[] arr2 = new int[arr1.length];\n\nSystem.arraycopy(arr1, 0, arr2, 0, arr1.length);<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u6b64\u65b9\u6cd5\u521b\u5efa arr2 \u7684\u4e00\u4e2a\u65b0\u526f\u672c\uff0c\u5e76\u9010\u4e2a\u5143\u7d20\u4ece arr1 \u590d\u5236\u5230 arr2\u3002<\/p>\n<p><strong>\u65b9\u6cd5 2\uff1a\u514b\u9686<\/strong><\/p>\n<p>\u5982\u679c\u6570\u7ec4\u5bf9\u8c61\u5b9e\u73b0\u4e86 Cloneable \u63a5\u53e3\uff0c\u53ef\u4ee5\u4f7f\u7528 clone() \u65b9\u6cd5\uff1a<\/p>\n<pre>int[] arr1 = {1, 2, 3, 4, 5};\nint[] arr2 = arr1.clone();<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u6b64\u65b9\u6cd5\u521b\u5efa arr2 \u7684\u4e00\u4e2a\u6d45\u5c42\u526f\u672c\uff0c\u5373 arr2 \u5f15\u7528\u76f8\u540c\u7684\u5185\u90e8\u6570\u7ec4\uff0c\u4f46\u5177\u6709\u4e0d\u540c\u7684\u5f15\u7528\u53d8\u91cf\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u590d\u5236\u6570\u7ec4\u600e\u4e48\u5f04\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728 java \u4e2d\u590d\u5236\u6570\u7ec4\u6709\u4e24\u79cd\u65b9\u6cd5\uff1a\u4f7f\u7528 system.arraycopy() \u65b9\u6cd5\u8fdb\u884c\u6570\u7ec4\u590d\u5236\uff0c\u9010\u4e2a\u5143\u7d20\u4ece\u6e90\u6570\u7ec4\u590d\u5236\u5230\u65b0\u6570\u7ec4\u3002\u5982\u679c\u6570\u7ec4\u5bf9\u8c61\u5b9e\u73b0\u4e86 cloneable \u63a5\u53e3\uff0c\u53ef\u4ee5\u4f7f\u7528 clone() \u65b9\u6cd5\u8fdb\u884c\u514b\u9686\uff0c\u521b\u5efa\u4e00\u4e2a\u65b0\u6570\u7ec4\u5e76\u5f15\u7528\u76f8\u540c\u7684\u5185\u90e8\u6570\u7ec4\u3002 \u5982\u4f55\u5728 Java \u4e2d\u590d\u5236\u6570\u7ec4 \u56de\u7b54\uff1a\u5728 Java \u4e2d\u590d\u5236\u6570\u7ec4\u6709\u4e24\u79cd\u65b9\u6cd5\uff1a\u6570\u7ec4\u590d\u5236\u548c\u514b\u9686\u3002 \u65b9\u6cd5 1\uff1a\u6570\u7ec4\u590d\u5236 \u4f7f\u7528 System.arraycopy() \u65b9\u6cd5\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b int[] arr1 = {1, 2, 3, 4, 5}; int[] arr2 = new int[arr1.length]; System.arraycopy(arr1, 0, arr2, 0, arr1.length); \u767b\u5f55\u540e\u590d\u5236 \u6b64\u65b9\u6cd5\u521b\u5efa arr2 \u7684\u4e00\u4e2a\u65b0\u526f\u672c\uff0c\u5e76\u9010\u4e2a\u5143\u7d20\u4ece arr1 \u590d\u5236\u5230 arr2\u3002 \u65b9\u6cd5 2\uff1a\u514b\u9686 \u5982\u679c\u6570\u7ec4\u5bf9\u8c61\u5b9e\u73b0\u4e86 Cloneable \u63a5\u53e3\uff0c\u53ef\u4ee5\u4f7f\u7528 clone() \u65b9\u6cd5\uff1a int[] arr1 [&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-37170","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/37170","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=37170"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/37170\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=37170"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=37170"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=37170"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}