{"id":38209,"date":"2024-11-26T13:07:44","date_gmt":"2024-11-26T05:07:44","guid":{"rendered":"https:\/\/fwq.ai\/blog\/38209\/"},"modified":"2024-11-26T13:07:44","modified_gmt":"2024-11-26T05:07:44","slug":"java%e6%80%8e%e4%b9%88%e7%9f%a5%e9%81%93%e8%be%93%e5%85%a5%e6%95%b0%e7%bb%84%e7%9a%84%e9%95%bf%e5%ba%a6","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/38209\/","title":{"rendered":"java\u600e\u4e48\u77e5\u9053\u8f93\u5165\u6570\u7ec4\u7684\u957f\u5ea6"},"content":{"rendered":"<blockquote><p>\n  \u83b7\u53d6\u6570\u7ec4\u957f\u5ea6\u7684\u63a8\u8350\u65b9\u6cd5\uff1a\u4f7f\u7528 length \u5c5e\u6027\uff0c\u4ee3\u7801\u4e3a\uff1aint length = arr.length\u3002\u5176\u4ed6\u65b9\u6cd5\u5305\u62ec\uff1a\u4f7f\u7528 for \u5faa\u73af\u8ba1\u6570\u5143\u7d20\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/14\/2024111410455374731.jpg\" class=\"aligncenter\" title=\"java\u600e\u4e48\u77e5\u9053\u8f93\u5165\u6570\u7ec4\u7684\u957f\u5ea6\u63d2\u56fe\" alt=\"java\u600e\u4e48\u77e5\u9053\u8f93\u5165\u6570\u7ec4\u7684\u957f\u5ea6\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u83b7\u53d6\u6570\u7ec4\u957f\u5ea6<\/strong><\/p>\n<p><strong>\u65b9\u6cd5\uff1a<\/strong><\/p>\n<p>\u83b7\u53d6\u6570\u7ec4\u957f\u5ea6\u7684<strong>\u63a8\u8350\u65b9\u6cd5<\/strong>\u662f\u4f7f\u7528 length \u5c5e\u6027\u3002<\/p>\n<p><strong>\u4ee3\u7801\uff1a<\/strong><\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<pre>int[] arr = {1, 2, 3, 4, 5};\nint length = arr.length;<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u5176\u4ed6\u65b9\u6cd5\uff1a<\/p>\n<ul>\n<li><strong>\u4f7f\u7528 for \u5faa\u73af\u8ba1\u6570\u5143\u7d20\uff1a<\/strong><\/li>\n<\/ul>\n<pre>int length = 0;\nfor (int element : arr) {\n    length++;\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u6ce8\u610f\uff1a<\/strong><\/p>\n<ul>\n<li>length \u5c5e\u6027\u662f\u6570\u7ec4\u7684\u5bf9\u8c61\u5c5e\u6027\uff0c\u8fd4\u56de\u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u6570\u91cf\u3002<\/li>\n<li>for \u5faa\u73af\u65b9\u6cd5\u8ba1\u7b97\u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u6570\u91cf\uff0c\u4f46\u6548\u7387\u8f83\u4f4e\u3002<\/li>\n<\/ul>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u600e\u4e48\u77e5\u9053\u8f93\u5165\u6570\u7ec4\u7684\u957f\u5ea6\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>\u83b7\u53d6\u6570\u7ec4\u957f\u5ea6\u7684\u63a8\u8350\u65b9\u6cd5\uff1a\u4f7f\u7528 length \u5c5e\u6027\uff0c\u4ee3\u7801\u4e3a\uff1aint length = arr.length\u3002\u5176\u4ed6\u65b9\u6cd5\u5305\u62ec\uff1a\u4f7f\u7528 for \u5faa\u73af\u8ba1\u6570\u5143\u7d20\u3002 \u5982\u4f55\u83b7\u53d6\u6570\u7ec4\u957f\u5ea6 \u65b9\u6cd5\uff1a \u83b7\u53d6\u6570\u7ec4\u957f\u5ea6\u7684\u63a8\u8350\u65b9\u6cd5\u662f\u4f7f\u7528 length \u5c5e\u6027\u3002 \u4ee3\u7801\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b int[] arr = {1, 2, 3, 4, 5}; int length = arr.length; \u767b\u5f55\u540e\u590d\u5236 \u5176\u4ed6\u65b9\u6cd5\uff1a \u4f7f\u7528 for \u5faa\u73af\u8ba1\u6570\u5143\u7d20\uff1a int length = 0; for (int element : arr) { length++; } \u767b\u5f55\u540e\u590d\u5236 \u6ce8\u610f\uff1a length \u5c5e\u6027\u662f\u6570\u7ec4\u7684\u5bf9\u8c61\u5c5e\u6027\uff0c\u8fd4\u56de\u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u6570\u91cf\u3002 for \u5faa\u73af\u65b9\u6cd5\u8ba1\u7b97\u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u6570\u91cf\uff0c\u4f46\u6548\u7387\u8f83\u4f4e\u3002 \u4ee5\u4e0a\u5c31\u662fjava\u600e\u4e48\u77e5\u9053\u8f93\u5165\u6570\u7ec4\u7684\u957f\u5ea6\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\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-38209","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/38209","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=38209"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/38209\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=38209"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=38209"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=38209"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}