{"id":64592,"date":"2025-05-03T09:42:26","date_gmt":"2025-05-03T01:42:26","guid":{"rendered":"https:\/\/fwq.ai\/blog\/64592\/"},"modified":"2025-05-03T09:42:26","modified_gmt":"2025-05-03T01:42:26","slug":"java%e4%ba%8c%e7%bb%b4%e6%95%b0%e7%bb%84%e9%95%bf%e5%ba%a6%e6%80%8e%e4%b9%88%e5%8f%96%e5%80%bc-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/64592\/","title":{"rendered":"java\u4e8c\u7ef4\u6570\u7ec4\u957f\u5ea6\u600e\u4e48\u53d6\u503c"},"content":{"rendered":"<blockquote><p>\n  \u4e8c\u7ef4\u6570\u7ec4\u957f\u5ea6\u83b7\u53d6\uff1a\u83b7\u53d6\u5916\u5c42\u6570\u7ec4\u957f\u5ea6\u4f7f\u7528 length \u5c5e\u6027\uff0c\u83b7\u53d6\u5185\u5c42\u6570\u7ec4\u957f\u5ea6\u904d\u5386\u5916\u5c42\u6570\u7ec4\u5e76\u4f7f\u7528 length \u5c5e\u6027\u83b7\u53d6\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/04\/2024110402393185767.jpg\" class=\"aligncenter\" title=\"java\u4e8c\u7ef4\u6570\u7ec4\u957f\u5ea6\u600e\u4e48\u53d6\u503c\u63d2\u56fe\" alt=\"java\u4e8c\u7ef4\u6570\u7ec4\u957f\u5ea6\u600e\u4e48\u53d6\u503c\u63d2\u56fe\" \/><\/p>\n<p><strong>Java \u4e8c\u7ef4\u6570\u7ec4\u957f\u5ea6\u7684\u83b7\u53d6<\/strong><\/p>\n<p>Java \u4e2d\u7684\u4e8c\u7ef4\u6570\u7ec4\u7531\u6570\u7ec4\u5143\u7d20\u7ec4\u6210\u7684\u6570\u7ec4\u7ec4\u6210\uff0c\u6bcf\u4e2a\u6570\u7ec4\u5143\u7d20\u90fd\u662f\u4e00\u4e2a\u4e00\u7ef4\u6570\u7ec4\u3002\u8981\u83b7\u53d6\u4e8c\u7ef4\u6570\u7ec4\u7684\u957f\u5ea6\uff0c\u9700\u8981\u4f7f\u7528\u4e24\u4e2a\u72ec\u7acb\u7684\u6b65\u9aa4\u3002<\/p>\n<p><strong>\u6b65\u9aa4 1\uff1a\u83b7\u53d6\u5916\u5c42\u6570\u7ec4\u7684\u957f\u5ea6<\/strong><\/p>\n<p>\u4f7f\u7528 length \u5c5e\u6027\u83b7\u53d6\u5916\u5c42\u6570\u7ec4\uff08\u5373\u5305\u542b\u4e00\u7ef4\u6570\u7ec4\u7684\u6570\u7ec4\uff09\u7684\u957f\u5ea6\u3002<\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<pre>int outerArrayLength = outerArray.length;<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u6b65\u9aa4 2\uff1a\u83b7\u53d6\u5185\u5c42\u6570\u7ec4\u7684\u957f\u5ea6<\/strong><\/p>\n<p>\u904d\u5386\u5916\u5c42\u6570\u7ec4\uff0c\u5bf9\u4e8e\u6bcf\u4e2a\u4e00\u7ef4\u6570\u7ec4\uff0c\u4f7f\u7528 length \u5c5e\u6027\u83b7\u53d6\u5176\u957f\u5ea6\u3002<\/p>\n<pre>for (int i = 0; i &lt; outerArrayLength; i++) {\n    int innerArrayLength = outerArray[i].length;\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u901a\u8fc7\u8fd9\u4e24\u4e2a\u6b65\u9aa4\uff0c\u53ef\u4ee5\u5206\u522b\u83b7\u53d6\u4e8c\u7ef4\u6570\u7ec4\u5916\u5c42\u6570\u7ec4\u548c\u5185\u5c42\u6570\u7ec4\u7684\u957f\u5ea6\u3002\u4f8b\u5982\uff0c\u5bf9\u4e8e\u4e00\u4e2a\u4e8c\u7ef4\u6570\u7ec4 int[][] array\uff0c\u5176\u5916\u5c42\u6570\u7ec4\u957f\u5ea6\u4e3a array.length\uff0c\u800c\u5185\u5c42\u6570\u7ec4\u957f\u5ea6\u5219\u5b58\u50a8\u5728 array[i].length \u4e2d\u3002\uff08\u5176\u4e2d i \u662f\u5916\u5c42\u6570\u7ec4\u7684\u7d22\u5f15\uff09<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u4e8c\u7ef4\u6570\u7ec4\u957f\u5ea6\u600e\u4e48\u53d6\u503c\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>\u4e8c\u7ef4\u6570\u7ec4\u957f\u5ea6\u83b7\u53d6\uff1a\u83b7\u53d6\u5916\u5c42\u6570\u7ec4\u957f\u5ea6\u4f7f\u7528 length \u5c5e\u6027\uff0c\u83b7\u53d6\u5185\u5c42\u6570\u7ec4\u957f\u5ea6\u904d\u5386\u5916\u5c42\u6570\u7ec4\u5e76\u4f7f\u7528 length \u5c5e\u6027\u83b7\u53d6\u3002 Java \u4e8c\u7ef4\u6570\u7ec4\u957f\u5ea6\u7684\u83b7\u53d6 Java \u4e2d\u7684\u4e8c\u7ef4\u6570\u7ec4\u7531\u6570\u7ec4\u5143\u7d20\u7ec4\u6210\u7684\u6570\u7ec4\u7ec4\u6210\uff0c\u6bcf\u4e2a\u6570\u7ec4\u5143\u7d20\u90fd\u662f\u4e00\u4e2a\u4e00\u7ef4\u6570\u7ec4\u3002\u8981\u83b7\u53d6\u4e8c\u7ef4\u6570\u7ec4\u7684\u957f\u5ea6\uff0c\u9700\u8981\u4f7f\u7528\u4e24\u4e2a\u72ec\u7acb\u7684\u6b65\u9aa4\u3002 \u6b65\u9aa4 1\uff1a\u83b7\u53d6\u5916\u5c42\u6570\u7ec4\u7684\u957f\u5ea6 \u4f7f\u7528 length \u5c5e\u6027\u83b7\u53d6\u5916\u5c42\u6570\u7ec4\uff08\u5373\u5305\u542b\u4e00\u7ef4\u6570\u7ec4\u7684\u6570\u7ec4\uff09\u7684\u957f\u5ea6\u3002 \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b int outerArrayLength = outerArray.length; \u767b\u5f55\u540e\u590d\u5236 \u6b65\u9aa4 2\uff1a\u83b7\u53d6\u5185\u5c42\u6570\u7ec4\u7684\u957f\u5ea6 \u904d\u5386\u5916\u5c42\u6570\u7ec4\uff0c\u5bf9\u4e8e\u6bcf\u4e2a\u4e00\u7ef4\u6570\u7ec4\uff0c\u4f7f\u7528 length \u5c5e\u6027\u83b7\u53d6\u5176\u957f\u5ea6\u3002 for (int i = 0; i &lt; outerArrayLength; i++) { int innerArrayLength = outerArray[i].length; } \u767b\u5f55\u540e\u590d\u5236 \u901a\u8fc7\u8fd9\u4e24\u4e2a\u6b65\u9aa4\uff0c\u53ef\u4ee5\u5206\u522b\u83b7\u53d6\u4e8c\u7ef4\u6570\u7ec4\u5916\u5c42\u6570\u7ec4\u548c\u5185\u5c42\u6570\u7ec4\u7684\u957f\u5ea6\u3002\u4f8b\u5982\uff0c\u5bf9\u4e8e\u4e00\u4e2a\u4e8c\u7ef4\u6570\u7ec4 int[][] array\uff0c\u5176\u5916\u5c42\u6570\u7ec4\u957f\u5ea6\u4e3a array.length\uff0c\u800c\u5185\u5c42\u6570\u7ec4\u957f\u5ea6\u5219\u5b58\u50a8\u5728 array[i].length \u4e2d\u3002\uff08\u5176\u4e2d i \u662f\u5916\u5c42\u6570\u7ec4\u7684\u7d22\u5f15\uff09 \u4ee5\u4e0a\u5c31\u662fjava\u4e8c\u7ef4\u6570\u7ec4\u957f\u5ea6\u600e\u4e48\u53d6\u503c\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-64592","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/64592","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=64592"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/64592\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=64592"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=64592"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=64592"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}