{"id":37546,"date":"2024-11-26T12:31:28","date_gmt":"2024-11-26T04:31:28","guid":{"rendered":"https:\/\/fwq.ai\/blog\/37546\/"},"modified":"2024-11-26T12:31:28","modified_gmt":"2024-11-26T04:31:28","slug":"java%e6%80%8e%e4%b9%88%e8%ae%b2%e5%85%83%e7%b4%a0%e6%94%be%e5%85%a5%e6%95%b0%e7%bb%84","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/37546\/","title":{"rendered":"java\u600e\u4e48\u8bb2\u5143\u7d20\u653e\u5165\u6570\u7ec4"},"content":{"rendered":"<blockquote><p>\n  \u5728 java \u4e2d\u5411\u6570\u7ec4\u4e2d\u63d2\u5165\u5143\u7d20\u6709\u4e24\u79cd\u65b9\u6cd5\uff1a\u76f4\u63a5\u8d4b\u503c\u548c\u4f7f\u7528 system.arraycopy() \u65b9\u6cd5\uff0c\u5177\u4f53\u6b65\u9aa4\u5982\u4e0b\uff1a\u76f4\u63a5\u8d4b\u503c\uff1a\u521b\u5efa\u4e00\u4e2a\u6570\u7ec4\u5e76\u5411\u5176\u5355\u5143\u683c\u76f4\u63a5\u8d4b\u503c\uff0c\u9002\u7528\u4e8e\u987a\u5e8f\u8bbf\u95ee\u548c\u63d2\u5165\u5143\u7d20\u3002\u4f7f\u7528 system.arraycopy() \u65b9\u6cd5\uff1a\u4ece\u4e00\u4e2a\u6570\u7ec4\u4e2d\u590d\u5236\u5143\u7d20\u5230\u53e6\u4e00\u4e2a\u6570\u7ec4\u4e2d\u3002\u9700\u8981\u6307\u5b9a\u6e90\u6570\u7ec4\u3001\u6e90\u6570\u7ec4\u5f00\u59cb\u590d\u5236\u7684\u4f4d\u7f6e\u3001\u76ee\u6807\u6570\u7ec4\u3001\u76ee\u6807\u6570\u7ec4\u5f00\u59cb\u7c98\u8d34\u7684\u4f4d\u7f6e\u4ee5\u53ca\u8981\u590d\u5236\u7684\u5143\u7d20\u6570\u91cf\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/13\/2024111307061737519.jpg\" class=\"aligncenter\" title=\"java\u600e\u4e48\u8bb2\u5143\u7d20\u653e\u5165\u6570\u7ec4\u63d2\u56fe\" alt=\"java\u600e\u4e48\u8bb2\u5143\u7d20\u653e\u5165\u6570\u7ec4\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u5728 Java \u4e2d\u5c06\u5143\u7d20\u653e\u5165\u6570\u7ec4<\/strong><\/p>\n<p>\u5728 Java \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u4e24\u79cd\u65b9\u6cd5\u5411\u6570\u7ec4\u4e2d\u63d2\u5165\u5143\u7d20\uff1a<\/p>\n<p><strong>1. \u76f4\u63a5\u8d4b\u503c<\/strong><\/p>\n<p>\u6700\u7b80\u5355\u7684\u65b9\u6cd5\u662f\u76f4\u63a5\u5411\u6570\u7ec4\u4e2d\u7684\u5355\u5143\u683c\u8d4b\u503c\u3002\u4f8b\u5982\uff1a<\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<pre>int[] numbers = new int[5];\nnumbers[0] = 10;\nnumbers[1] = 20;\nnumbers[2] = 30;<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u8fd9\u79cd\u65b9\u6cd5\u9002\u7528\u4e8e\u987a\u5e8f\u8bbf\u95ee\u5e76\u63d2\u5165\u5143\u7d20\u5230\u6570\u7ec4\u4e2d\u3002<\/p>\n<p><strong>2. \u4f7f\u7528 System.arraycopy() \u65b9\u6cd5<\/strong><\/p>\n<p>\u5982\u679c\u9700\u8981\u5c06\u4e00\u4e2a\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u63d2\u5165\u5230\u53e6\u4e00\u4e2a\u6570\u7ec4\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528 System.arraycopy() \u65b9\u6cd5\u3002\u8be5\u65b9\u6cd5\u9700\u8981\u56db\u4e2a\u53c2\u6570\uff1a<\/p>\n<ul>\n<li>\u6e90\u6570\u7ec4<\/li>\n<li>\u6e90\u6570\u7ec4\u5f00\u59cb\u590d\u5236\u7684\u4f4d\u7f6e<\/li>\n<li>\u76ee\u6807\u6570\u7ec4<\/li>\n<li>\u76ee\u6807\u6570\u7ec4\u5f00\u59cb\u7c98\u8d34\u7684\u4f4d\u7f6e<\/li>\n<li>\u8981\u590d\u5236\u7684\u5143\u7d20\u6570\u91cf<\/li>\n<\/ul>\n<p>\u4f8b\u5982\uff1a<\/p>\n<pre>int[] numbers1 = new int[]{10, 20, 30};\nint[] numbers2 = new int[5];\n\nSystem.arraycopy(numbers1, 0, numbers2, 2, 2);<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u8be5\u4ee3\u7801\u5c06 numbers1 \u6570\u7ec4\u4e2d\u7d22\u5f15\u4e3a 0 \u548c 1 \u7684\u5143\u7d20\u590d\u5236\u5230 numbers2 \u6570\u7ec4\u4e2d\uff0c\u4ece\u7d22\u5f15\u4e3a 2 \u7684\u4f4d\u7f6e\u5f00\u59cb\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u600e\u4e48\u8bb2\u5143\u7d20\u653e\u5165\u6570\u7ec4\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\u5411\u6570\u7ec4\u4e2d\u63d2\u5165\u5143\u7d20\u6709\u4e24\u79cd\u65b9\u6cd5\uff1a\u76f4\u63a5\u8d4b\u503c\u548c\u4f7f\u7528 system.arraycopy() \u65b9\u6cd5\uff0c\u5177\u4f53\u6b65\u9aa4\u5982\u4e0b\uff1a\u76f4\u63a5\u8d4b\u503c\uff1a\u521b\u5efa\u4e00\u4e2a\u6570\u7ec4\u5e76\u5411\u5176\u5355\u5143\u683c\u76f4\u63a5\u8d4b\u503c\uff0c\u9002\u7528\u4e8e\u987a\u5e8f\u8bbf\u95ee\u548c\u63d2\u5165\u5143\u7d20\u3002\u4f7f\u7528 system.arraycopy() \u65b9\u6cd5\uff1a\u4ece\u4e00\u4e2a\u6570\u7ec4\u4e2d\u590d\u5236\u5143\u7d20\u5230\u53e6\u4e00\u4e2a\u6570\u7ec4\u4e2d\u3002\u9700\u8981\u6307\u5b9a\u6e90\u6570\u7ec4\u3001\u6e90\u6570\u7ec4\u5f00\u59cb\u590d\u5236\u7684\u4f4d\u7f6e\u3001\u76ee\u6807\u6570\u7ec4\u3001\u76ee\u6807\u6570\u7ec4\u5f00\u59cb\u7c98\u8d34\u7684\u4f4d\u7f6e\u4ee5\u53ca\u8981\u590d\u5236\u7684\u5143\u7d20\u6570\u91cf\u3002 \u5982\u4f55\u5728 Java \u4e2d\u5c06\u5143\u7d20\u653e\u5165\u6570\u7ec4 \u5728 Java \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u4e24\u79cd\u65b9\u6cd5\u5411\u6570\u7ec4\u4e2d\u63d2\u5165\u5143\u7d20\uff1a 1. \u76f4\u63a5\u8d4b\u503c \u6700\u7b80\u5355\u7684\u65b9\u6cd5\u662f\u76f4\u63a5\u5411\u6570\u7ec4\u4e2d\u7684\u5355\u5143\u683c\u8d4b\u503c\u3002\u4f8b\u5982\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b int[] numbers = new int[5]; numbers[0] = 10; numbers[1] = 20; numbers[2] = 30; \u767b\u5f55\u540e\u590d\u5236 \u8fd9\u79cd\u65b9\u6cd5\u9002\u7528\u4e8e\u987a\u5e8f\u8bbf\u95ee\u5e76\u63d2\u5165\u5143\u7d20\u5230\u6570\u7ec4\u4e2d\u3002 2. \u4f7f\u7528 System.arraycopy() \u65b9\u6cd5 \u5982\u679c\u9700\u8981\u5c06\u4e00\u4e2a\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u63d2\u5165\u5230\u53e6\u4e00\u4e2a\u6570\u7ec4\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528 System.arraycopy() \u65b9\u6cd5\u3002\u8be5\u65b9\u6cd5\u9700\u8981\u56db\u4e2a\u53c2\u6570\uff1a \u6e90\u6570\u7ec4 \u6e90\u6570\u7ec4\u5f00\u59cb\u590d\u5236\u7684\u4f4d\u7f6e \u76ee\u6807\u6570\u7ec4 \u76ee\u6807\u6570\u7ec4\u5f00\u59cb\u7c98\u8d34\u7684\u4f4d\u7f6e \u8981\u590d\u5236\u7684\u5143\u7d20\u6570\u91cf \u4f8b\u5982\uff1a int[] numbers1 = new int[]{10, 20, 30}; int[] numbers2 [&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-37546","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/37546","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=37546"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/37546\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=37546"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=37546"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=37546"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}