{"id":66039,"date":"2025-05-03T15:04:07","date_gmt":"2025-05-03T07:04:07","guid":{"rendered":"https:\/\/fwq.ai\/blog\/66039\/"},"modified":"2025-05-03T15:04:07","modified_gmt":"2025-05-03T07:04:07","slug":"java%e6%80%8e%e4%b9%88%e6%b1%82%e6%95%b0%e7%bb%84%e7%9a%84%e5%85%83%e7%b4%a0%e4%b8%aa%e6%95%b0-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/66039\/","title":{"rendered":"java\u600e\u4e48\u6c42\u6570\u7ec4\u7684\u5143\u7d20\u4e2a\u6570"},"content":{"rendered":"<blockquote><p>\n  \u6709\u4e24\u79cd\u65b9\u6cd5\u53ef\u4ee5\u8ba1\u7b97 java \u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u4e2a\u6570\uff1a1. \u4f7f\u7528 length \u5c5e\u6027\uff0c2. \u4f7f\u7528 arrays.length() \u65b9\u6cd5\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/14\/2024111412004489359.jpg\" class=\"aligncenter\" title=\"java\u600e\u4e48\u6c42\u6570\u7ec4\u7684\u5143\u7d20\u4e2a\u6570\u63d2\u56fe\" alt=\"java\u600e\u4e48\u6c42\u6570\u7ec4\u7684\u5143\u7d20\u4e2a\u6570\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u8ba1\u7b97 Java \u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u4e2a\u6570<\/strong><\/p>\n<p>\u6c42\u6570\u7ec4\u5143\u7d20\u4e2a\u6570\u7684\u65b9\u6cd5\u6709\u4e24\u79cd\uff1a<\/p>\n<p><strong>1. \u4f7f\u7528 length \u5c5e\u6027<\/strong><\/p>\n<p>length \u5c5e\u6027\u662f Java \u6570\u7ec4\u56fa\u6709\u7684\u5c5e\u6027\uff0c\u5b83\u8868\u793a\u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u4e2a\u6570\u3002\u8981\u83b7\u53d6\u6570\u7ec4\u7684\u957f\u5ea6\uff0c\u53ea\u9700\u4f7f\u7528\u4ee5\u4e0b\u8bed\u6cd5\uff1a<\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<pre>int length = array.length;<\/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.util.Arrays \u5305\u4e2d\u7684\u4e00\u4e2a\u9759\u6001\u65b9\u6cd5\uff0c\u5b83\u8fd4\u56de\u6570\u7ec4\u7684\u957f\u5ea6\u3002\u8981\u4f7f\u7528\u6b64\u65b9\u6cd5\uff0c\u9700\u5148\u5bfc\u5165\u6b64\u5305\uff0c\u7136\u540e\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u8bed\u6cd5\uff1a<\/p>\n<pre>import java.util.Arrays;\n\nint length = Arrays.length(array);<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u600e\u4e48\u6c42\u6570\u7ec4\u7684\u5143\u7d20\u4e2a\u6570\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8IDCBABY\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6709\u4e24\u79cd\u65b9\u6cd5\u53ef\u4ee5\u8ba1\u7b97 java \u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u4e2a\u6570\uff1a1. \u4f7f\u7528 length \u5c5e\u6027\uff0c2. \u4f7f\u7528 arrays.length() \u65b9\u6cd5\u3002 \u5982\u4f55\u8ba1\u7b97 Java \u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u4e2a\u6570 \u6c42\u6570\u7ec4\u5143\u7d20\u4e2a\u6570\u7684\u65b9\u6cd5\u6709\u4e24\u79cd\uff1a 1. \u4f7f\u7528 length \u5c5e\u6027 length \u5c5e\u6027\u662f Java \u6570\u7ec4\u56fa\u6709\u7684\u5c5e\u6027\uff0c\u5b83\u8868\u793a\u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u4e2a\u6570\u3002\u8981\u83b7\u53d6\u6570\u7ec4\u7684\u957f\u5ea6\uff0c\u53ea\u9700\u4f7f\u7528\u4ee5\u4e0b\u8bed\u6cd5\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b int length = array.length; \u767b\u5f55\u540e\u590d\u5236 2. \u4f7f\u7528 Arrays.length() \u65b9\u6cd5 Arrays.length() \u662f java.util.Arrays \u5305\u4e2d\u7684\u4e00\u4e2a\u9759\u6001\u65b9\u6cd5\uff0c\u5b83\u8fd4\u56de\u6570\u7ec4\u7684\u957f\u5ea6\u3002\u8981\u4f7f\u7528\u6b64\u65b9\u6cd5\uff0c\u9700\u5148\u5bfc\u5165\u6b64\u5305\uff0c\u7136\u540e\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u8bed\u6cd5\uff1a import java.util.Arrays; int length = Arrays.length(array); \u767b\u5f55\u540e\u590d\u5236 \u4ee5\u4e0a\u5c31\u662fjava\u600e\u4e48\u6c42\u6570\u7ec4\u7684\u5143\u7d20\u4e2a\u6570\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8IDCBABY\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/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-66039","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/66039","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=66039"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/66039\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=66039"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=66039"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=66039"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}