{"id":38869,"date":"2024-11-26T11:04:08","date_gmt":"2024-11-26T03:04:08","guid":{"rendered":"https:\/\/fwq.ai\/blog\/38869\/"},"modified":"2024-11-26T11:04:08","modified_gmt":"2024-11-26T03:04:08","slug":"java%e4%b8%ad%e4%ba%8c%e7%bb%b4%e6%95%b0%e7%bb%84%e6%80%8e%e4%b9%88%e5%88%86%e5%89%b2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/38869\/","title":{"rendered":"java\u4e2d\u4e8c\u7ef4\u6570\u7ec4\u600e\u4e48\u5206\u5272"},"content":{"rendered":"

\n \u5728 java \u4e2d\u5206\u5272\u4e8c\u7ef4\u6570\u7ec4\u7684\u4e24\u79cd\u65b9\u6cd5\u662f\uff1a\u4f7f\u7528 subarray() \u65b9\u6cd5\uff0c\u53ef\u4ee5\u6309\u884c\u6216\u5217\u5206\u5272\u6570\u7ec4\u3002\u4f7f\u7528 system.arraycopy() \u65b9\u6cd5\uff0c\u53ef\u4ee5\u5c06\u6570\u7ec4\u7684\u4e00\u90e8\u5206\u590d\u5236\u5230\u53e6\u4e00\u4e2a\u6570\u7ec4\u4e2d\u3002\n<\/p><\/blockquote>\n

\"java\u4e2d\u4e8c\u7ef4\u6570\u7ec4\u600e\u4e48\u5206\u5272\u63d2\u56fe\"<\/p>\n

\u5982\u4f55\u5728 Java \u4e2d\u5206\u5272\u4e8c\u7ef4\u6570\u7ec4<\/strong><\/p>\n

\u4e8c\u7ef4\u6570\u7ec4\u662f\u4e00\u79cd\u6570\u636e\u7ed3\u6784\uff0c\u5b83\u5305\u542b\u5b58\u50a8\u5728\u884c\u548c\u5217\u4e2d\u7684\u5143\u7d20\u96c6\u5408\u3002\u6709\u65f6\uff0c\u9700\u8981\u5206\u5272\u4e00\u4e2a\u4e8c\u7ef4\u6570\u7ec4\uff0c\u5c06\u5176\u5206\u6210\u66f4\u5c0f\u7684\u90e8\u5206\u6765\u8fdb\u884c\u8fdb\u4e00\u6b65\u5904\u7406\u6216\u5206\u6790\u3002<\/p>\n

\u65b9\u6cd5\uff1a<\/strong><\/p>\n

1. \u4f7f\u7528 subarray() \u65b9\u6cd5\uff1a<\/strong><\/p>\n

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

subarray() \u65b9\u6cd5\u53ef\u4ee5\u7528\u6765\u5206\u5272\u4e00\u4e2a\u4e8c\u7ef4\u6570\u7ec4\u7684\u884c\u6216\u5217\u3002\u5b83\u63a5\u53d7\u4e24\u4e2a\u53c2\u6570\uff1a\u8d77\u59cb\u7d22\u5f15\u548c\u7ed3\u675f\u7d22\u5f15\u3002<\/p>\n

int[][] originalArray = {\n  {1, 2, 3},\n  {4, 5, 6},\n  {7, 8, 9}\n};\n\n\/\/ \u5206\u5272\u7b2c\u4e00\u884c\nint[][] subarray1 = Arrays.copyOfRange(originalArray, 0, 1);\n\n\/\/ \u5206\u5272\u7b2c\u4e8c\u5217\nint[][] subarray2 = new int[3][1];\nfor (int i = 0; i < 3; i++) {\n  subarray2[i][0] = originalArray[i][1];\n}<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
2. \u4f7f\u7528 System.arraycopy() \u65b9\u6cd5\uff1a<\/strong><\/p>\n
System.arraycopy() \u65b9\u6cd5\u53ef\u4ee5\u7528\u6765\u590d\u5236\u6570\u7ec4\u7684\u4e00\u90e8\u5206\u5230\u53e6\u4e00\u4e2a\u6570\u7ec4\u4e2d\u3002\u5b83\u63a5\u53d7\u4e09\u4e2a\u53c2\u6570\uff1a\u6e90\u6570\u7ec4\u3001\u6e90\u6570\u7ec4\u7684\u8d77\u59cb\u7d22\u5f15\u3001\u76ee\u6807\u6570\u7ec4\u548c\u76ee\u6807\u6570\u7ec4\u7684\u8d77\u59cb\u7d22\u5f15\u3002<\/p>\n
int[][] originalArray = {\n  {1, 2, 3},\n  {4, 5, 6},\n  {7, 8, 9}\n};\n\n\/\/ \u5206\u5272\u7b2c\u4e00\u884c\nint[][] subarray1 = new int[1][3];\nSystem.arraycopy(originalArray, 0, subarray1, 0, 3);\n\n\/\/ \u5206\u5272\u7b2c\u4e8c\u5217\nint[][] subarray2 = new int[3][1];\nfor (int i = 0; i < 3; i++) {\n  System.arraycopy(originalArray[i], 1, subarray2[i], 0, 1);\n}<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u4ee5\u4e0a\u5c31\u662fjava\u4e2d\u4e8c\u7ef4\u6570\u7ec4\u600e\u4e48\u5206\u5272\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":"
\u5728 java \u4e2d\u5206\u5272\u4e8c\u7ef4\u6570\u7ec4\u7684\u4e24\u79cd\u65b9\u6cd5\u662f\uff1a\u4f7f\u7528 subarray() \u65b9\u6cd5\uff0c\u53ef\u4ee5\u6309\u884c\u6216\u5217\u5206\u5272\u6570\u7ec4\u3002\u4f7f\u7528 system.arraycopy() \u65b9\u6cd5\uff0c\u53ef\u4ee5\u5c06\u6570\u7ec4\u7684\u4e00\u90e8\u5206\u590d\u5236\u5230\u53e6\u4e00\u4e2a\u6570\u7ec4\u4e2d\u3002 \u5982\u4f55\u5728 Java \u4e2d\u5206\u5272\u4e8c\u7ef4\u6570\u7ec4 \u4e8c\u7ef4\u6570\u7ec4\u662f\u4e00\u79cd\u6570\u636e\u7ed3\u6784\uff0c\u5b83\u5305\u542b\u5b58\u50a8\u5728\u884c\u548c\u5217\u4e2d\u7684\u5143\u7d20\u96c6\u5408\u3002\u6709\u65f6\uff0c\u9700\u8981\u5206\u5272\u4e00\u4e2a\u4e8c\u7ef4\u6570\u7ec4\uff0c\u5c06\u5176\u5206\u6210\u66f4\u5c0f\u7684\u90e8\u5206\u6765\u8fdb\u884c\u8fdb\u4e00\u6b65\u5904\u7406\u6216\u5206\u6790\u3002 \u65b9\u6cd5\uff1a 1. \u4f7f\u7528 subarray() \u65b9\u6cd5\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b subarray() \u65b9\u6cd5\u53ef\u4ee5\u7528\u6765\u5206\u5272\u4e00\u4e2a\u4e8c\u7ef4\u6570\u7ec4\u7684\u884c\u6216\u5217\u3002\u5b83\u63a5\u53d7\u4e24\u4e2a\u53c2\u6570\uff1a\u8d77\u59cb\u7d22\u5f15\u548c\u7ed3\u675f\u7d22\u5f15\u3002 int[][] originalArray = { {1, 2, 3}, {4, 5, 6}, {7, 8, 9} }; \/\/ \u5206\u5272\u7b2c\u4e00\u884c int[][] subarray1 = Arrays.copyOfRange(originalArray, 0, 1); \/\/ \u5206\u5272\u7b2c\u4e8c\u5217 int[][] subarray2 = new int[3][1]; for (int i = 0; i < […]<\/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-38869","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/38869","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=38869"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/38869\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=38869"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=38869"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=38869"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}