{"id":37592,"date":"2024-11-26T09:38:58","date_gmt":"2024-11-26T01:38:58","guid":{"rendered":"https:\/\/fwq.ai\/blog\/37592\/"},"modified":"2024-11-26T09:38:58","modified_gmt":"2024-11-26T01:38:58","slug":"java%e6%95%b0%e7%bb%84%e6%80%8e%e4%b9%88%e7%9f%a5%e9%81%93%e5%85%83%e7%b4%a0%e4%b8%aa%e6%95%b0","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/37592\/","title":{"rendered":"java\u6570\u7ec4\u600e\u4e48\u77e5\u9053\u5143\u7d20\u4e2a\u6570"},"content":{"rendered":"<blockquote><p>\n  java \u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u4e2a\u6570\u53ef\u4ee5\u901a\u8fc7\u4e24\u4e2a\u65b9\u6cd5\u786e\u5b9a\uff1a1. \u8bbf\u95ee\u5185\u7f6e\u5c5e\u6027 length\uff1b2. \u4f7f\u7528\u5faa\u73af\u904d\u5386\u5e76\u4f7f\u7528\u8ba1\u6570\u5668\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/13\/2024111307361726901.jpg\" class=\"aligncenter\" title=\"java\u6570\u7ec4\u600e\u4e48\u77e5\u9053\u5143\u7d20\u4e2a\u6570\u63d2\u56fe\" alt=\"java\u6570\u7ec4\u600e\u4e48\u77e5\u9053\u5143\u7d20\u4e2a\u6570\u63d2\u56fe\" \/><\/p>\n<p><strong>Java \u6570\u7ec4\u5982\u4f55\u786e\u5b9a\u5143\u7d20\u4e2a\u6570<\/strong><\/p>\n<p>\u8981\u786e\u5b9a Java \u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u4e2a\u6570\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u65b9\u6cd5\uff1a<\/p>\n<p><strong>1. length \u5c5e\u6027<\/strong><\/p>\n<p>Java \u6570\u7ec4\u5177\u6709\u4e00\u4e2a\u5185\u7f6e\u5c5e\u6027\u540d\u4e3a length\uff0c\u5b83\u63d0\u4f9b\u4e86\u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u6570\u91cf\u3002\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u65b9\u5f0f\u8bbf\u95ee\u6b64\u5c5e\u6027\uff1a<\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<pre>int[] myArray = {1, 2, 3, 4, 5};\nint size = myArray.length;\nSystem.out.println(size); \/\/ \u8f93\u51fa\uff1a5<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>2. \u5faa\u73af<\/strong><\/p>\n<p>\u53ef\u4ee5\u901a\u8fc7\u904d\u5386\u6570\u7ec4\u5e76\u4f7f\u7528\u8ba1\u6570\u5668\u6765\u8ba1\u7b97\u5143\u7d20\u7684\u6570\u91cf\u3002<\/p>\n<pre>int[] myArray = {1, 2, 3, 4, 5};\nint size = 0;\nfor (int element : myArray) {\n    size++;\n}\nSystem.out.println(size); \/\/ \u8f93\u51fa\uff1a5<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u6ce8\u610f\u4e8b\u9879\uff1a<\/strong><\/p>\n<ul>\n<li>length \u5c5e\u6027\u8fd4\u56de\u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u6570\u91cf\uff0c\u800c\u4e0d\u4ec5\u4ec5\u662f\u5206\u914d\u7ed9\u6570\u7ec4\u7684\u5185\u5b58\u7a7a\u95f4\u91cf\u3002<\/li>\n<li>\u5bf9\u4e8e\u591a\u7ef4\u6570\u7ec4\uff0clength \u5c5e\u6027\u8fd4\u56de\u8be5\u7ef4\u5ea6\u7684\u957f\u5ea6\u3002\u4f8b\u5982\uff0c\u4e00\u4e2a\u4e8c\u7ef4\u6570\u7ec4\u7684 length \u5c5e\u6027\u5c06\u8fd4\u56de\u884c\u6570\uff0c\u800c length[0] \u5c5e\u6027\u5c06\u8fd4\u56de\u5217\u6570\u3002<\/li>\n<\/ul>\n<p><strong>\u7531\u6b64\u53ef\u89c1\uff0c\u786e\u5b9a Java \u6570\u7ec4\u4e2d\u5143\u7d20\u4e2a\u6570\u6700\u7b80\u5355\u7684\u65b9\u6cd5\u662f\u4f7f\u7528 length \u5c5e\u6027\u3002<\/strong><\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u6570\u7ec4\u600e\u4e48\u77e5\u9053\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>java \u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u4e2a\u6570\u53ef\u4ee5\u901a\u8fc7\u4e24\u4e2a\u65b9\u6cd5\u786e\u5b9a\uff1a1. \u8bbf\u95ee\u5185\u7f6e\u5c5e\u6027 length\uff1b2. \u4f7f\u7528\u5faa\u73af\u904d\u5386\u5e76\u4f7f\u7528\u8ba1\u6570\u5668\u3002 Java \u6570\u7ec4\u5982\u4f55\u786e\u5b9a\u5143\u7d20\u4e2a\u6570 \u8981\u786e\u5b9a Java \u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u4e2a\u6570\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u65b9\u6cd5\uff1a 1. length \u5c5e\u6027 Java \u6570\u7ec4\u5177\u6709\u4e00\u4e2a\u5185\u7f6e\u5c5e\u6027\u540d\u4e3a length\uff0c\u5b83\u63d0\u4f9b\u4e86\u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u6570\u91cf\u3002\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u65b9\u5f0f\u8bbf\u95ee\u6b64\u5c5e\u6027\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b int[] myArray = {1, 2, 3, 4, 5}; int size = myArray.length; System.out.println(size); \/\/ \u8f93\u51fa\uff1a5 \u767b\u5f55\u540e\u590d\u5236 2. \u5faa\u73af \u53ef\u4ee5\u901a\u8fc7\u904d\u5386\u6570\u7ec4\u5e76\u4f7f\u7528\u8ba1\u6570\u5668\u6765\u8ba1\u7b97\u5143\u7d20\u7684\u6570\u91cf\u3002 int[] myArray = {1, 2, 3, 4, 5}; int size = 0; for (int element : myArray) { size++; [&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-37592","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/37592","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=37592"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/37592\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=37592"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=37592"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=37592"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}