{"id":34729,"date":"2024-11-26T11:23:32","date_gmt":"2024-11-26T03:23:32","guid":{"rendered":"https:\/\/fwq.ai\/blog\/34729\/"},"modified":"2024-11-26T11:23:32","modified_gmt":"2024-11-26T03:23:32","slug":"java%e6%95%b0%e7%bb%84%e9%95%bf%e5%ba%a6length%e6%80%8e%e4%b9%88%e7%9c%8b","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/34729\/","title":{"rendered":"java\u6570\u7ec4\u957f\u5ea6length\u600e\u4e48\u770b"},"content":{"rendered":"<blockquote><p>\n  java \u4e2d\u901a\u8fc7\u6570\u7ec4\u7684 length \u5c5e\u6027\u83b7\u53d6\u6570\u7ec4\u957f\u5ea6\u3002\u8fd9\u4e2a\u53ea\u8bfb\u5c5e\u6027\u8fd4\u56de\u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u6570\u91cf\u3002\u8bed\u6cd5\uff1aint length = arrayname.length;\u793a\u4f8b\uff1aint[] myarray = {1, 2, 3, 4, 5}; int length = myarray.length; \/\/ length = 5\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/03\/2024110302004592786.jpg\" class=\"aligncenter\" title=\"java\u6570\u7ec4\u957f\u5ea6length\u600e\u4e48\u770b\u63d2\u56fe\" alt=\"java\u6570\u7ec4\u957f\u5ea6length\u600e\u4e48\u770b\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u5728 Java \u4e2d\u67e5\u627e\u6570\u7ec4\u957f\u5ea6<\/strong><\/p>\n<p>Java \u4e2d\u6570\u7ec4\u7684\u957f\u5ea6\u53ef\u4ee5\u901a\u8fc7 length \u5c5e\u6027\u6765\u8bbf\u95ee\u3002length \u5c5e\u6027\u662f\u4e00\u4e2a\u53ea\u8bfb\u5c5e\u6027\uff0c\u7528\u4e8e\u8fd4\u56de\u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u6570\u91cf\u3002<\/p>\n<p><strong>\u8bed\u6cd5\uff1a<\/strong><\/p>\n<pre>int length = arrayName.length;<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u793a\u4f8b\uff1a<\/strong><\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<pre>int[] myArray = {1, 2, 3, 4, 5};\nint length = myArray.length; \/\/ length = 5<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0cmyArray \u6570\u7ec4\u5305\u542b 5 \u4e2a\u5143\u7d20\uff0c\u56e0\u6b64 length \u5c5e\u6027\u503c\u4e3a 5\u3002<\/p>\n<p>\u8981\u6ce8\u610f\u7684\u662f\uff0clength \u5c5e\u6027\u4e0d\u662f\u6570\u7ec4\u7684\u4e00\u90e8\u5206\uff0c\u5b83\u662f\u4e00\u4e2a\u8868\u793a\u6570\u7ec4\u957f\u5ea6\u7684\u5e38\u91cf\u3002\u56e0\u6b64\uff0c\u4fee\u6539 length \u5c5e\u6027\u4e0d\u4f1a\u5f71\u54cd\u6570\u7ec4\u7684\u5b9e\u9645\u957f\u5ea6\u3002<\/p>\n<p>\u6b64\u5916\uff0clength \u5c5e\u6027\u53ea\u9002\u7528\u4e8e\u539f\u59cb\u6570\u7ec4\u7c7b\u578b\uff0c\u4e0d\u9002\u7528\u4e8e\u6570\u7ec4\u7c7b\u3002\u5bf9\u4e8e\u6570\u7ec4\u7c7b\uff0c\u53ef\u4ee5\u4f7f\u7528 length() \u65b9\u6cd5\u6765\u83b7\u53d6\u6570\u7ec4\u7684\u957f\u5ea6\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u6570\u7ec4\u957f\u5ea6length\u600e\u4e48\u770b\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 \u4e2d\u901a\u8fc7\u6570\u7ec4\u7684 length \u5c5e\u6027\u83b7\u53d6\u6570\u7ec4\u957f\u5ea6\u3002\u8fd9\u4e2a\u53ea\u8bfb\u5c5e\u6027\u8fd4\u56de\u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u6570\u91cf\u3002\u8bed\u6cd5\uff1aint length = arrayname.length;\u793a\u4f8b\uff1aint[] myarray = {1, 2, 3, 4, 5}; int length = myarray.length; \/\/ length = 5\u3002 \u5982\u4f55\u5728 Java \u4e2d\u67e5\u627e\u6570\u7ec4\u957f\u5ea6 Java \u4e2d\u6570\u7ec4\u7684\u957f\u5ea6\u53ef\u4ee5\u901a\u8fc7 length \u5c5e\u6027\u6765\u8bbf\u95ee\u3002length \u5c5e\u6027\u662f\u4e00\u4e2a\u53ea\u8bfb\u5c5e\u6027\uff0c\u7528\u4e8e\u8fd4\u56de\u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u6570\u91cf\u3002 \u8bed\u6cd5\uff1a int length = arrayName.length; \u767b\u5f55\u540e\u590d\u5236 \u793a\u4f8b\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b int[] myArray = {1, 2, 3, 4, 5}; int length = myArray.length; \/\/ length = 5 \u767b\u5f55\u540e\u590d\u5236 [&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-34729","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/34729","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=34729"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/34729\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=34729"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=34729"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=34729"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}