{"id":66830,"date":"2025-05-03T08:12:08","date_gmt":"2025-05-03T00:12:08","guid":{"rendered":"https:\/\/fwq.ai\/blog\/66830\/"},"modified":"2025-05-03T08:12:08","modified_gmt":"2025-05-03T00:12:08","slug":"java%e6%80%8e%e4%b9%88%e8%8e%b7%e5%8f%96%e4%b8%80%e6%ae%b5%e7%89%b9%e5%ae%9a%e6%95%b0%e7%bb%84-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/66830\/","title":{"rendered":"java\u600e\u4e48\u83b7\u53d6\u4e00\u6bb5\u7279\u5b9a\u6570\u7ec4"},"content":{"rendered":"

\n java \u4e2d\u83b7\u53d6\u6570\u7ec4\u6307\u5b9a\u90e8\u5206\u7684\u65b9\u6cd5\u6709\u4e09\u79cd\uff1a\u4f7f\u7528 arrays.copyofrange() \u83b7\u53d6\u6307\u5b9a\u8303\u56f4\u7684\u65b0\u6570\u7ec4\u4f7f\u7528 system.arraycopy() \u5c06\u6307\u5b9a\u8303\u56f4\u590d\u5236\u5230\u65b0\u6570\u7ec4\u4f7f\u7528 for \u5faa\u73af\u9010\u4e2a\u590d\u5236\u5143\u7d20\u5230\u65b0\u6570\u7ec4\n<\/p><\/blockquote>\n

\"java\u600e\u4e48\u83b7\u53d6\u4e00\u6bb5\u7279\u5b9a\u6570\u7ec4\u63d2\u56fe\"<\/p>\n

Java \u4e2d\u83b7\u53d6\u6570\u7ec4\u6307\u5b9a\u90e8\u5206<\/strong><\/p>\n

\u5f15\u8a00<\/strong><\/p>\n

\u5728 Java \u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u5404\u79cd\u65b9\u6cd5\u83b7\u53d6\u6570\u7ec4\u7684\u7279\u5b9a\u90e8\u5206\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u83b7\u53d6\u6570\u7ec4\u6307\u5b9a\u8303\u56f4\u5143\u7d20\u7684\u51e0\u79cd\u5e38\u7528\u65b9\u6cd5\u3002<\/p>\n

\u65b9\u6cd5\u4e00\uff1a\u4f7f\u7528 Arrays.copyOfRange()<\/strong><\/p>\n

\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n

int[] originalArray = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};\nint[] subArray = Arrays.copyOfRange(originalArray, 2, 5);<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u8be5\u65b9\u6cd5\u63a5\u53d7\u4e09\u4e2a\u53c2\u6570\uff1a\u539f\u59cb\u6570\u7ec4\u3001\u8d77\u59cb\u7d22\u5f15\u548c\u7ed3\u675f\u7d22\u5f15\uff08\u4e0d\u5305\u62ec\uff09\u3002\u5b83\u8fd4\u56de\u4e00\u4e2a\u5305\u542b\u6307\u5b9a\u8303\u56f4\u5143\u7d20\u7684\u65b0\u6570\u7ec4\u3002\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0csubArray \u5c06\u5305\u542b\u5143\u7d20 3\u30014 \u548c 5\u3002<\/p>\n
\u65b9\u6cd5\u4e8c\uff1a\u4f7f\u7528 System.arraycopy()<\/strong><\/p>\n
int[] originalArray = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};\nint[] subArray = new int[3];\nSystem.arraycopy(originalArray, 2, subArray, 0, 3);<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
System.arraycopy() \u65b9\u6cd5\u5c06\u539f\u59cb\u6570\u7ec4\u7684\u6307\u5b9a\u8303\u56f4\u590d\u5236\u5230\u4e00\u4e2a\u65b0\u6570\u7ec4\u4e2d\u3002\u5b83\u9700\u8981\u4e94\u4e2a\u53c2\u6570\uff1a\u539f\u59cb\u6570\u7ec4\u3001\u539f\u59cb\u6570\u7ec4\u7684\u8d77\u59cb\u7d22\u5f15\u3001\u76ee\u6807\u6570\u7ec4\u3001\u76ee\u6807\u6570\u7ec4\u7684\u8d77\u59cb\u7d22\u5f15\u4ee5\u53ca\u8981\u590d\u5236\u7684\u5143\u7d20\u6570\u91cf\u3002\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0csubArray \u5c06\u5305\u542b\u5143\u7d20 3\u30014 \u548c 5\u3002<\/p>\n
\u65b9\u6cd5\u4e09\uff1a\u4f7f\u7528 for \u5faa\u73af<\/strong><\/p>\n
\u867d\u7136\u4e0a\u8ff0\u65b9\u6cd5\u66f4\u7b80\u6d01\uff0c\u4f46\u6211\u4eec\u4e5f\u53ef\u4ee5\u4f7f\u7528 for \u5faa\u73af\u624b\u52a8\u83b7\u53d6\u6570\u7ec4\u7684\u7279\u5b9a\u90e8\u5206\u3002<\/p>\n
int[] originalArray = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};\nint[] subArray = new int[3];\nint index = 0;\nfor (int i = 2; i < 5; i++) {\n  subArray[index++] = originalArray[i];\n}<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
for \u5faa\u73af\u4ece\u8d77\u59cb\u7d22\u5f15\u5f00\u59cb\uff0c\u76f4\u5230\u7ed3\u675f\u7d22\u5f15\uff08\u4e0d\u5305\u62ec\uff09\uff0c\u9010\u4e2a\u590d\u5236\u5143\u7d20\u5230\u65b0\u6570\u7ec4\u4e2d\u3002<\/p>\n
\u9009\u62e9\u65b9\u6cd5<\/strong><\/p>\n
\u4e0a\u8ff0\u65b9\u6cd5\u5404\u6709\u4f18\u7f3a\u70b9\u3002\u4f7f\u7528 Arrays.copyOfRange() \u6700\u4e3a\u7b80\u6d01\u65b9\u4fbf\uff0c\u800c System.arraycopy() \u5141\u8bb8\u66f4\u7075\u6d3b\u7684\u590d\u5236\u9009\u9879\u3002for \u5faa\u73af\u867d\u7136\u8f83\u4f4e\u6548\uff0c\u4f46\u53ef\u4ee5\u63d0\u4f9b\u5bf9\u590d\u5236\u8fc7\u7a0b\u7684\u66f4\u5927\u63a7\u5236\u3002\u6839\u636e\u5177\u4f53\u573a\u666f\u548c\u6027\u80fd\u8981\u6c42\uff0c\u9009\u62e9\u6700\u5408\u9002\u7684`\u65b9\u6cd5\u5373\u53ef\u3002<\/p>\n
\u4ee5\u4e0a\u5c31\u662fjava\u600e\u4e48\u83b7\u53d6\u4e00\u6bb5\u7279\u5b9a\u6570\u7ec4\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8IDCBABY\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
java \u4e2d\u83b7\u53d6\u6570\u7ec4\u6307\u5b9a\u90e8\u5206\u7684\u65b9\u6cd5\u6709\u4e09\u79cd\uff1a\u4f7f\u7528 arrays.copyofrange() \u83b7\u53d6\u6307\u5b9a\u8303\u56f4\u7684\u65b0\u6570\u7ec4\u4f7f\u7528 system.arraycopy() \u5c06\u6307\u5b9a\u8303\u56f4\u590d\u5236\u5230\u65b0\u6570\u7ec4\u4f7f\u7528 for \u5faa\u73af\u9010\u4e2a\u590d\u5236\u5143\u7d20\u5230\u65b0\u6570\u7ec4 Java \u4e2d\u83b7\u53d6\u6570\u7ec4\u6307\u5b9a\u90e8\u5206 \u5f15\u8a00 \u5728 Java \u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u5404\u79cd\u65b9\u6cd5\u83b7\u53d6\u6570\u7ec4\u7684\u7279\u5b9a\u90e8\u5206\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u83b7\u53d6\u6570\u7ec4\u6307\u5b9a\u8303\u56f4\u5143\u7d20\u7684\u51e0\u79cd\u5e38\u7528\u65b9\u6cd5\u3002 \u65b9\u6cd5\u4e00\uff1a\u4f7f\u7528 Arrays.copyOfRange() \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b int[] originalArray = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}; int[] subArray = Arrays.copyOfRange(originalArray, 2, 5); \u767b\u5f55\u540e\u590d\u5236 \u8be5\u65b9\u6cd5\u63a5\u53d7\u4e09\u4e2a\u53c2\u6570\uff1a\u539f\u59cb\u6570\u7ec4\u3001\u8d77\u59cb\u7d22\u5f15\u548c\u7ed3\u675f\u7d22\u5f15\uff08\u4e0d\u5305\u62ec\uff09\u3002\u5b83\u8fd4\u56de\u4e00\u4e2a\u5305\u542b\u6307\u5b9a\u8303\u56f4\u5143\u7d20\u7684\u65b0\u6570\u7ec4\u3002\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0csubArray \u5c06\u5305\u542b\u5143\u7d20 3\u30014 \u548c 5\u3002 \u65b9\u6cd5\u4e8c\uff1a\u4f7f\u7528 System.arraycopy() int[] originalArray = {1, 2, 3, 4, 5, 6, 7, 8, […]<\/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-66830","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/66830","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=66830"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/66830\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=66830"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=66830"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=66830"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}