{"id":37845,"date":"2024-11-26T16:46:39","date_gmt":"2024-11-26T08:46:39","guid":{"rendered":"https:\/\/fwq.ai\/blog\/37845\/"},"modified":"2024-11-26T16:46:39","modified_gmt":"2024-11-26T08:46:39","slug":"%e6%95%b0%e7%bb%84%e7%9a%84%e9%95%bf%e5%ba%a6%e6%80%8e%e4%b9%88%e5%88%a4%e6%96%adjava","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/37845\/","title":{"rendered":"\u6570\u7ec4\u7684\u957f\u5ea6\u600e\u4e48\u5224\u65adjava"},"content":{"rendered":"<blockquote><p>\n  java \u4e2d\u5224\u65ad\u6570\u7ec4\u957f\u5ea6\u7684\u65b9\u6cd5\u662f\u4f7f\u7528 length \u5c5e\u6027\u3002\u5b83\u8fd4\u56de\u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u6570\u91cf\uff0c\u65e0\u9700\u989d\u5916\u53c2\u6570\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/13\/2024111311481965332.jpg\" class=\"aligncenter\" title=\"\u6570\u7ec4\u7684\u957f\u5ea6\u600e\u4e48\u5224\u65adjava\u63d2\u56fe\" alt=\"\u6570\u7ec4\u7684\u957f\u5ea6\u600e\u4e48\u5224\u65adjava\u63d2\u56fe\" \/><\/p>\n<p><strong>\u6570\u7ec4\u957f\u5ea6\u7684\u5224\u65ad<\/strong><\/p>\n<p>Java \u4e2d\u5224\u65ad\u6570\u7ec4\u957f\u5ea6\u7684\u65b9\u6cd5\u975e\u5e38\u7b80\u5355\uff0c\u53ea\u9700\u4f7f\u7528 length \u5c5e\u6027\u5373\u53ef\u3002<\/p>\n<p><strong>\u4f7f\u7528\u65b9\u6cd5\uff1a<\/strong><\/p>\n<pre>int[] myArray = {1, 2, 3, 4, 5};\n\/\/ \u83b7\u53d6\u6570\u7ec4 myArray \u7684\u957f\u5ea6\nint length = myArray.length;<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u7ed3\u679c\uff1a<\/strong><\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<p>\u53d8\u91cf length \u5c06\u88ab\u8d4b\u503c\u4e3a 5\uff0c\u5373\u6570\u7ec4 myArray \u4e2d\u5143\u7d20\u7684\u6570\u91cf\u3002<\/p>\n<p><strong>\u6ce8\u610f\uff1a<\/strong><\/p>\n<ul>\n<li>length \u5c5e\u6027\u8fd4\u56de\u7684\u662f\u6570\u7ec4\u4e2d\u5143\u7d20\u7684 <strong>\u6570\u91cf<\/strong>\uff0c\u800c\u4e0d\u662f\u6570\u7ec4\u4e2d\u6700\u540e\u4e00\u4e2a\u5143\u7d20\u7684\u7d22\u5f15\u3002<\/li>\n<li>\u6570\u7ec4\u7684\u957f\u5ea6\u662f\u4e00\u4e2a\u56fa\u5b9a\u7684\u503c\uff0c\u4e00\u65e6\u521b\u5efa\u6570\u7ec4\u540e\u65e0\u6cd5\u66f4\u6539\u3002<\/li>\n<li>\u4f7f\u7528 length \u5c5e\u6027\u4e0d\u9700\u8981\u989d\u5916\u7684\u53c2\u6570\u3002<\/li>\n<\/ul>\n<p><strong>\u793a\u4f8b\uff1a<\/strong><\/p>\n<pre>int[] arr1 = new int[10];\nSystem.out.println(\"arr1 \u7684\u957f\u5ea6\uff1a\" + arr1.length); \/\/ \u8f93\u51fa\uff1a10\n\nint[] arr2 = {1, 2, 3};\nSystem.out.println(\"arr2 \u7684\u957f\u5ea6\uff1a\" + arr2.length); \/\/ \u8f93\u51fa\uff1a3\n\nif (arr1.length &gt; arr2.length) {\n    System.out.println(\"arr1 \u7684\u957f\u5ea6\u5927\u4e8e arr2 \u7684\u957f\u5ea6\");\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u8f93\u51fa\uff1a<\/p>\n<pre>arr1 \u7684\u957f\u5ea6\uff1a10\narr2 \u7684\u957f\u5ea6\uff1a3\narr1 \u7684\u957f\u5ea6\u5927\u4e8e arr2 \u7684\u957f\u5ea6<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u4ee5\u4e0a\u5c31\u662f\u6570\u7ec4\u7684\u957f\u5ea6\u600e\u4e48\u5224\u65adjava\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\u5224\u65ad\u6570\u7ec4\u957f\u5ea6\u7684\u65b9\u6cd5\u662f\u4f7f\u7528 length \u5c5e\u6027\u3002\u5b83\u8fd4\u56de\u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u6570\u91cf\uff0c\u65e0\u9700\u989d\u5916\u53c2\u6570\u3002 \u6570\u7ec4\u957f\u5ea6\u7684\u5224\u65ad Java \u4e2d\u5224\u65ad\u6570\u7ec4\u957f\u5ea6\u7684\u65b9\u6cd5\u975e\u5e38\u7b80\u5355\uff0c\u53ea\u9700\u4f7f\u7528 length \u5c5e\u6027\u5373\u53ef\u3002 \u4f7f\u7528\u65b9\u6cd5\uff1a int[] myArray = {1, 2, 3, 4, 5}; \/\/ \u83b7\u53d6\u6570\u7ec4 myArray \u7684\u957f\u5ea6 int length = myArray.length; \u767b\u5f55\u540e\u590d\u5236 \u7ed3\u679c\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b \u53d8\u91cf length \u5c06\u88ab\u8d4b\u503c\u4e3a 5\uff0c\u5373\u6570\u7ec4 myArray \u4e2d\u5143\u7d20\u7684\u6570\u91cf\u3002 \u6ce8\u610f\uff1a length \u5c5e\u6027\u8fd4\u56de\u7684\u662f\u6570\u7ec4\u4e2d\u5143\u7d20\u7684 \u6570\u91cf\uff0c\u800c\u4e0d\u662f\u6570\u7ec4\u4e2d\u6700\u540e\u4e00\u4e2a\u5143\u7d20\u7684\u7d22\u5f15\u3002 \u6570\u7ec4\u7684\u957f\u5ea6\u662f\u4e00\u4e2a\u56fa\u5b9a\u7684\u503c\uff0c\u4e00\u65e6\u521b\u5efa\u6570\u7ec4\u540e\u65e0\u6cd5\u66f4\u6539\u3002 \u4f7f\u7528 length \u5c5e\u6027\u4e0d\u9700\u8981\u989d\u5916\u7684\u53c2\u6570\u3002 \u793a\u4f8b\uff1a int[] arr1 = new int[10]; System.out.println(&#8220;arr1 \u7684\u957f\u5ea6\uff1a&#8221; + arr1.length); \/\/ \u8f93\u51fa\uff1a10 [&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-37845","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/37845","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=37845"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/37845\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=37845"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=37845"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=37845"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}