{"id":39202,"date":"2024-11-26T12:45:44","date_gmt":"2024-11-26T04:45:44","guid":{"rendered":"https:\/\/fwq.ai\/blog\/39202\/"},"modified":"2024-11-26T12:45:44","modified_gmt":"2024-11-26T04:45:44","slug":"java%e9%87%8c%e6%80%8e%e4%b9%88%e7%ae%97%e6%95%b0%e7%bb%84%e7%9a%84%e5%85%83%e7%b4%a0%e4%b8%aa%e6%95%b0","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/39202\/","title":{"rendered":"java\u91cc\u600e\u4e48\u7b97\u6570\u7ec4\u7684\u5143\u7d20\u4e2a\u6570"},"content":{"rendered":"<blockquote><p>\n  \u5728 java \u4e2d\uff0c\u53ef\u901a\u8fc7\u4ee5\u4e0b\u65b9\u6cd5\u8ba1\u7b97\u6570\u7ec4\u5143\u7d20\u4e2a\u6570\uff1a\u4f7f\u7528 length \u5b57\u6bb5\uff1a\u6570\u7ec4\u5185\u90e8\u5c5e\u6027\uff0c\u5b58\u50a8\u5143\u7d20\u4e2a\u6570\u3002\u4f7f\u7528 arrays.length \u65b9\u6cd5\uff1a\u5b9e\u7528\u7a0b\u5e8f\u7c7b\u4e2d\u63a5\u6536\u6570\u7ec4\u53c2\u6570\u5e76\u8fd4\u56de\u5143\u7d20\u4e2a\u6570\u7684\u65b9\u6cd5\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/16\/2024111605061628406.jpg\" class=\"aligncenter\" title=\"java\u91cc\u600e\u4e48\u7b97\u6570\u7ec4\u7684\u5143\u7d20\u4e2a\u6570\u63d2\u56fe\" alt=\"java\u91cc\u600e\u4e48\u7b97\u6570\u7ec4\u7684\u5143\u7d20\u4e2a\u6570\u63d2\u56fe\" \/><\/p>\n<p><strong>Java \u4e2d\u8ba1\u7b97\u6570\u7ec4\u5143\u7d20\u4e2a\u6570<\/strong><\/p>\n<p>\u5728 Java \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u65b9\u6cd5\u8ba1\u7b97\u6570\u7ec4\u7684\u5143\u7d20\u4e2a\u6570\uff1a<\/p>\n<p><strong>1. \u4f7f\u7528 length \u5b57\u6bb5<\/strong><\/p>\n<p>length \u5b57\u6bb5\u662f\u6570\u7ec4\u7684\u5185\u90e8\u5c5e\u6027\uff0c\u5b83\u5b58\u50a8\u7740\u6570\u7ec4\u5143\u7d20\u7684\u4e2a\u6570\u3002\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u65b9\u5f0f\u8bbf\u95ee\u5b83\uff1a<\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<pre>int[] myArray = new int[10];\nint length = myArray.length; \/\/ length = 10<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>2. \u4f7f\u7528 Arrays.length \u65b9\u6cd5<\/strong><\/p>\n<p>Arrays.length \u662f Java \u5e93\u4e2d Arrays \u5b9e\u7528\u7a0b\u5e8f\u7c7b\u4e2d\u7684\u4e00\u4e2a\u65b9\u6cd5\u3002\u5b83\u63a5\u6536\u4e00\u4e2a\u6570\u7ec4\u4f5c\u4e3a\u53c2\u6570\uff0c\u5e76\u8fd4\u56de\u5176\u5143\u7d20\u4e2a\u6570\u3002<\/p>\n<pre>int[] myArray = new int[10];\nint length = Arrays.length(myArray); \/\/ length = 10<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u6ce8\u610f\uff1a<\/strong><\/p>\n<ul>\n<li>\u5bf9\u4e8e\u591a\u7ef4\u6570\u7ec4\uff0clength \u5b57\u6bb5\u548c Arrays.length \u65b9\u6cd5\u53ea\u8fd4\u56de\u7b2c\u4e00\u7ef4\u7684\u5143\u7d20\u4e2a\u6570\u3002\u8981\u8ba1\u7b97\u6240\u6709\u5143\u7d20\u7684\u4e2a\u6570\uff0c\u9700\u8981\u8fed\u4ee3\u6570\u7ec4\u5e76\u7d2f\u52a0\u6bcf\u4e2a\u7ef4\u5ea6\u7684\u5143\u7d20\u4e2a\u6570\u3002<\/li>\n<li>length \u5b57\u6bb5\u548c Arrays.length \u65b9\u6cd5\u90fd\u662f\u5e38\u91cf\u65f6\u95f4\u64cd\u4f5c\uff0c\u56e0\u4e3a\u5b83\u4eec\u76f4\u63a5\u4ece\u6570\u7ec4\u5bf9\u8c61\u7684\u5143\u6570\u636e\u4e2d\u83b7\u53d6\u5143\u7d20\u4e2a\u6570\u3002<\/li>\n<\/ul>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u91cc\u600e\u4e48\u7b97\u6570\u7ec4\u7684\u5143\u7d20\u4e2a\u6570\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\uff0c\u53ef\u901a\u8fc7\u4ee5\u4e0b\u65b9\u6cd5\u8ba1\u7b97\u6570\u7ec4\u5143\u7d20\u4e2a\u6570\uff1a\u4f7f\u7528 length \u5b57\u6bb5\uff1a\u6570\u7ec4\u5185\u90e8\u5c5e\u6027\uff0c\u5b58\u50a8\u5143\u7d20\u4e2a\u6570\u3002\u4f7f\u7528 arrays.length \u65b9\u6cd5\uff1a\u5b9e\u7528\u7a0b\u5e8f\u7c7b\u4e2d\u63a5\u6536\u6570\u7ec4\u53c2\u6570\u5e76\u8fd4\u56de\u5143\u7d20\u4e2a\u6570\u7684\u65b9\u6cd5\u3002 Java \u4e2d\u8ba1\u7b97\u6570\u7ec4\u5143\u7d20\u4e2a\u6570 \u5728 Java \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u65b9\u6cd5\u8ba1\u7b97\u6570\u7ec4\u7684\u5143\u7d20\u4e2a\u6570\uff1a 1. \u4f7f\u7528 length \u5b57\u6bb5 length \u5b57\u6bb5\u662f\u6570\u7ec4\u7684\u5185\u90e8\u5c5e\u6027\uff0c\u5b83\u5b58\u50a8\u7740\u6570\u7ec4\u5143\u7d20\u7684\u4e2a\u6570\u3002\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u65b9\u5f0f\u8bbf\u95ee\u5b83\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b int[] myArray = new int[10]; int length = myArray.length; \/\/ length = 10 \u767b\u5f55\u540e\u590d\u5236 2. \u4f7f\u7528 Arrays.length \u65b9\u6cd5 Arrays.length \u662f Java \u5e93\u4e2d Arrays \u5b9e\u7528\u7a0b\u5e8f\u7c7b\u4e2d\u7684\u4e00\u4e2a\u65b9\u6cd5\u3002\u5b83\u63a5\u6536\u4e00\u4e2a\u6570\u7ec4\u4f5c\u4e3a\u53c2\u6570\uff0c\u5e76\u8fd4\u56de\u5176\u5143\u7d20\u4e2a\u6570\u3002 int[] myArray = new int[10]; int length = Arrays.length(myArray); \/\/ length = [&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-39202","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/39202","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=39202"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/39202\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=39202"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=39202"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=39202"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}