{"id":37259,"date":"2024-11-26T16:10:02","date_gmt":"2024-11-26T08:10:02","guid":{"rendered":"https:\/\/fwq.ai\/blog\/37259\/"},"modified":"2024-11-26T16:10:02","modified_gmt":"2024-11-26T08:10:02","slug":"%e9%95%bf%e5%ba%a6%e7%ad%89%e4%ba%8e%e6%95%b0%e7%bb%84%e6%80%8e%e4%b9%88%e8%a1%a8%e8%be%bejava","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/37259\/","title":{"rendered":"\u957f\u5ea6\u7b49\u4e8e\u6570\u7ec4\u600e\u4e48\u8868\u8fbejava"},"content":{"rendered":"<blockquote><p>\n  \u83b7\u53d6\u6570\u7ec4\u957f\u5ea6\u7684 java \u8868\u8fbe\u5f0f\uff1a\u4f7f\u7528 array.length \u83b7\u53d6\u6570\u7ec4\u7684\u957f\u5ea6\uff0c\u5176\u4e2d array \u662f\u6570\u7ec4\u53d8\u91cf\u3002length \u662f\u4fdd\u5b58\u6570\u7ec4\u957f\u5ea6\u7684\u6574\u6570\u53d8\u91cf\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/13\/2024111303093623247.jpg\" class=\"aligncenter\" title=\"\u957f\u5ea6\u7b49\u4e8e\u6570\u7ec4\u600e\u4e48\u8868\u8fbejava\u63d2\u56fe\" alt=\"\u957f\u5ea6\u7b49\u4e8e\u6570\u7ec4\u600e\u4e48\u8868\u8fbejava\u63d2\u56fe\" \/><\/p>\n<p><strong>\u957f\u5ea6\u7b49\u4e8e\u6570\u7ec4\u7684 Java \u8868\u8fbe\u5f0f<\/strong><\/p>\n<p>\u957f\u5ea6\u7b49\u4e8e\u6570\u7ec4\u7684 Java \u8868\u8fbe\u5f0f\u901a\u5e38\u4f7f\u7528 length \u5c5e\u6027\u6765\u83b7\u53d6\u6570\u7ec4\u7684\u957f\u5ea6\u3002\u8bed\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre>int length = array.length;<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u5176\u4e2d\uff1a<\/p>\n<ul>\n<li>array \u662f\u8981\u83b7\u53d6\u957f\u5ea6\u7684\u6570\u7ec4\u53d8\u91cf<\/li>\n<li>length \u662f\u4e00\u4e2a\u4fdd\u5b58\u6570\u7ec4\u957f\u5ea6\u7684\u6574\u6570\u53d8\u91cf<\/li>\n<\/ul>\n<p>\u4f8b\u5982\uff1a<\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<pre>int[] numbers = {1, 2, 3, 4, 5};\nint length = numbers.length; \/\/ length = 5<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>length \u5c5e\u6027\u53ef\u4ee5\u7528\u6765\u68c0\u67e5\u6570\u7ec4\u662f\u5426\u4e3a\u7a7a\uff0c\u6216\u8005\u8fdb\u884c\u6570\u7ec4\u904d\u5386\u3002\u4f8b\u5982\uff1a<\/p>\n<pre>\/\/ \u68c0\u67e5\u6570\u7ec4\u662f\u5426\u4e3a\u7a7a\nif (numbers.length == 0) {\n    System.out.println(\"\u6570\u7ec4\u4e3a\u7a7a\");\n}\n\n\/\/ \u904d\u5386\u6570\u7ec4\nfor (int i = 0; i &lt; numbers.length; i++) {\n    System.out.println(numbers[i]);\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u4ee5\u4e0a\u5c31\u662f\u957f\u5ea6\u7b49\u4e8e\u6570\u7ec4\u600e\u4e48\u8868\u8fbejava\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 java \u8868\u8fbe\u5f0f\uff1a\u4f7f\u7528 array.length \u83b7\u53d6\u6570\u7ec4\u7684\u957f\u5ea6\uff0c\u5176\u4e2d array \u662f\u6570\u7ec4\u53d8\u91cf\u3002length \u662f\u4fdd\u5b58\u6570\u7ec4\u957f\u5ea6\u7684\u6574\u6570\u53d8\u91cf\u3002 \u957f\u5ea6\u7b49\u4e8e\u6570\u7ec4\u7684 Java \u8868\u8fbe\u5f0f \u957f\u5ea6\u7b49\u4e8e\u6570\u7ec4\u7684 Java \u8868\u8fbe\u5f0f\u901a\u5e38\u4f7f\u7528 length \u5c5e\u6027\u6765\u83b7\u53d6\u6570\u7ec4\u7684\u957f\u5ea6\u3002\u8bed\u6cd5\u5982\u4e0b\uff1a int length = array.length; \u767b\u5f55\u540e\u590d\u5236 \u5176\u4e2d\uff1a array \u662f\u8981\u83b7\u53d6\u957f\u5ea6\u7684\u6570\u7ec4\u53d8\u91cf length \u662f\u4e00\u4e2a\u4fdd\u5b58\u6570\u7ec4\u957f\u5ea6\u7684\u6574\u6570\u53d8\u91cf \u4f8b\u5982\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b int[] numbers = {1, 2, 3, 4, 5}; int length = numbers.length; \/\/ length = 5 \u767b\u5f55\u540e\u590d\u5236 length \u5c5e\u6027\u53ef\u4ee5\u7528\u6765\u68c0\u67e5\u6570\u7ec4\u662f\u5426\u4e3a\u7a7a\uff0c\u6216\u8005\u8fdb\u884c\u6570\u7ec4\u904d\u5386\u3002\u4f8b\u5982\uff1a \/\/ \u68c0\u67e5\u6570\u7ec4\u662f\u5426\u4e3a\u7a7a if (numbers.length == 0) { System.out.println(&#8220;\u6570\u7ec4\u4e3a\u7a7a&#8221;); [&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-37259","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/37259","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=37259"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/37259\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=37259"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=37259"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=37259"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}