{"id":39630,"date":"2024-11-26T14:57:39","date_gmt":"2024-11-26T06:57:39","guid":{"rendered":"https:\/\/fwq.ai\/blog\/39630\/"},"modified":"2024-11-26T14:57:39","modified_gmt":"2024-11-26T06:57:39","slug":"java%e6%80%8e%e4%b9%88%e8%be%93%e5%87%ba%e5%af%b9%e8%b1%a1%e4%b8%aa%e6%95%b0%e7%bb%84%e7%9a%84%e9%95%bf%e5%ba%a6","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/39630\/","title":{"rendered":"java\u600e\u4e48\u8f93\u51fa\u5bf9\u8c61\u4e2a\u6570\u7ec4\u7684\u957f\u5ea6"},"content":{"rendered":"<blockquote><p>\n  java \u4e2d\u7684\u5bf9\u8c61\u6570\u7ec4\u957f\u5ea6\u53ef\u4ee5\u901a\u8fc7\u8bbf\u95ee\u5176 length \u5c5e\u6027\u83b7\u5f97\u3002\u8fd9\u4e2a\u5c5e\u6027\u8868\u793a\u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u6570\u91cf\u3002\u4f8b\u5982\uff0c\u5bf9\u4e8e\u4e00\u4e2a\u5305\u542b\u4e09\u4e2a\u5143\u7d20\u7684\u5bf9\u8c61\u6570\u7ec4\uff0c\u5176 length \u5c5e\u6027\u503c\u4e3a 3\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/16\/2024111619280117944.jpg\" class=\"aligncenter\" title=\"java\u600e\u4e48\u8f93\u51fa\u5bf9\u8c61\u4e2a\u6570\u7ec4\u7684\u957f\u5ea6\u63d2\u56fe\" alt=\"java\u600e\u4e48\u8f93\u51fa\u5bf9\u8c61\u4e2a\u6570\u7ec4\u7684\u957f\u5ea6\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u8f93\u51fa Java \u4e2d\u5bf9\u8c61\u6570\u7ec4\u7684\u957f\u5ea6<\/strong><\/p>\n<p>\u8981\u83b7\u5f97 Java \u4e2d\u5bf9\u8c61\u6570\u7ec4\u7684\u957f\u5ea6\uff0c\u53ef\u4ee5\u4f7f\u7528 length \u5c5e\u6027\u3002\u5b83\u662f\u4e00\u4e2a\u5185\u7f6e\u5c5e\u6027\uff0c\u8868\u793a\u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u6570\u91cf\u3002<\/p>\n<p><strong>\u8303\u4f8b\u4ee3\u7801\uff1a<\/strong><\/p>\n<pre>\/\/ \u521b\u5efa\u4e00\u4e2a\u5305\u542b\u5b57\u7b26\u4e32\u7684\u5bf9\u8c61\u6570\u7ec4\nString[] arr = {\"Java\", \"Python\", \"C++\"};\n\n\/\/ \u83b7\u53d6\u6570\u7ec4\u957f\u5ea6\u5e76\u5c06\u5176\u8f93\u51fa\u5230\u63a7\u5236\u53f0\nint length = arr.length;\nSystem.out.println(\"\u6570\u7ec4\u957f\u5ea6\uff1a\" + length);<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u8f93\u51fa\uff1a<\/strong><\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<pre>\u6570\u7ec4\u957f\u5ea6\uff1a3<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u8be6\u89e3\uff1a<\/strong><\/p>\n<ul>\n<li>arr \u662f\u4e00\u4e2a\u5bf9\u8c61\u6570\u7ec4\uff0c\u5b83\u5305\u542b\u4e09\u4e2a\u5b57\u7b26\u4e32\u5143\u7d20\u3002<\/li>\n<li>arr.length \u8fd4\u56de\u6570\u7ec4\u7684\u957f\u5ea6\uff0c\u5373\u5143\u7d20\u7684\u6570\u91cf\u3002<\/li>\n<li>System.out.println() \u51fd\u6570\u5c06\u6570\u7ec4\u957f\u5ea6\u8f93\u51fa\u5230\u63a7\u5236\u53f0\u3002<\/li>\n<\/ul>\n<p><strong>\u6ce8\u610f\u4e8b\u9879\uff1a<\/strong><\/p>\n<ul>\n<li>length \u5c5e\u6027\u53ea\u80fd\u7528\u4e8e\u6570\u7ec4\uff0c\u4e0d\u80fd\u7528\u4e8e\u5176\u4ed6\u6570\u636e\u7c7b\u578b\u3002<\/li>\n<li>\u6570\u7ec4\u7684\u957f\u5ea6\u662f\u56fa\u5b9a\u7684\uff0c\u4e00\u65e6\u521b\u5efa\u5c31\u4e0d\u80fd\u66f4\u6539\u3002<\/li>\n<\/ul>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u600e\u4e48\u8f93\u51fa\u5bf9\u8c61\u4e2a\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>java \u4e2d\u7684\u5bf9\u8c61\u6570\u7ec4\u957f\u5ea6\u53ef\u4ee5\u901a\u8fc7\u8bbf\u95ee\u5176 length \u5c5e\u6027\u83b7\u5f97\u3002\u8fd9\u4e2a\u5c5e\u6027\u8868\u793a\u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u6570\u91cf\u3002\u4f8b\u5982\uff0c\u5bf9\u4e8e\u4e00\u4e2a\u5305\u542b\u4e09\u4e2a\u5143\u7d20\u7684\u5bf9\u8c61\u6570\u7ec4\uff0c\u5176 length \u5c5e\u6027\u503c\u4e3a 3\u3002 \u5982\u4f55\u8f93\u51fa Java \u4e2d\u5bf9\u8c61\u6570\u7ec4\u7684\u957f\u5ea6 \u8981\u83b7\u5f97 Java \u4e2d\u5bf9\u8c61\u6570\u7ec4\u7684\u957f\u5ea6\uff0c\u53ef\u4ee5\u4f7f\u7528 length \u5c5e\u6027\u3002\u5b83\u662f\u4e00\u4e2a\u5185\u7f6e\u5c5e\u6027\uff0c\u8868\u793a\u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u6570\u91cf\u3002 \u8303\u4f8b\u4ee3\u7801\uff1a \/\/ \u521b\u5efa\u4e00\u4e2a\u5305\u542b\u5b57\u7b26\u4e32\u7684\u5bf9\u8c61\u6570\u7ec4 String[] arr = {&#8220;Java&#8221;, &#8220;Python&#8221;, &#8220;C++&#8221;}; \/\/ \u83b7\u53d6\u6570\u7ec4\u957f\u5ea6\u5e76\u5c06\u5176\u8f93\u51fa\u5230\u63a7\u5236\u53f0 int length = arr.length; System.out.println(&#8220;\u6570\u7ec4\u957f\u5ea6\uff1a&#8221; + length); \u767b\u5f55\u540e\u590d\u5236 \u8f93\u51fa\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b \u6570\u7ec4\u957f\u5ea6\uff1a3 \u767b\u5f55\u540e\u590d\u5236 \u8be6\u89e3\uff1a arr \u662f\u4e00\u4e2a\u5bf9\u8c61\u6570\u7ec4\uff0c\u5b83\u5305\u542b\u4e09\u4e2a\u5b57\u7b26\u4e32\u5143\u7d20\u3002 arr.length \u8fd4\u56de\u6570\u7ec4\u7684\u957f\u5ea6\uff0c\u5373\u5143\u7d20\u7684\u6570\u91cf\u3002 System.out.println() \u51fd\u6570\u5c06\u6570\u7ec4\u957f\u5ea6\u8f93\u51fa\u5230\u63a7\u5236\u53f0\u3002 \u6ce8\u610f\u4e8b\u9879\uff1a length \u5c5e\u6027\u53ea\u80fd\u7528\u4e8e\u6570\u7ec4\uff0c\u4e0d\u80fd\u7528\u4e8e\u5176\u4ed6\u6570\u636e\u7c7b\u578b\u3002 \u6570\u7ec4\u7684\u957f\u5ea6\u662f\u56fa\u5b9a\u7684\uff0c\u4e00\u65e6\u521b\u5efa\u5c31\u4e0d\u80fd\u66f4\u6539\u3002 \u4ee5\u4e0a\u5c31\u662fjava\u600e\u4e48\u8f93\u51fa\u5bf9\u8c61\u4e2a\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-39630","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/39630","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=39630"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/39630\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=39630"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=39630"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=39630"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}