{"id":64610,"date":"2025-05-03T13:31:00","date_gmt":"2025-05-03T05:31:00","guid":{"rendered":"https:\/\/fwq.ai\/blog\/64610\/"},"modified":"2025-05-03T13:31:00","modified_gmt":"2025-05-03T05:31:00","slug":"java%e6%80%8e%e4%b9%88%e5%88%9b%e5%bb%ba%e4%b8%80%e4%b8%aa%e6%95%b0%e7%bb%84%e5%af%b9%e8%b1%a1-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/64610\/","title":{"rendered":"java\u600e\u4e48\u521b\u5efa\u4e00\u4e2a\u6570\u7ec4\u5bf9\u8c61"},"content":{"rendered":"<blockquote><p>\n  \u6307\u5b9a\u5143\u7d20\u7c7b\u578b\u548c\u6570\u7ec4\u5927\u5c0f\uff1b\u4f7f\u7528 new \u8fd0\u7b97\u7b26\u521b\u5efa\u6570\u7ec4\u5bf9\u8c61\uff1b\u4f7f\u7528\u7d22\u5f15\u8fd0\u7b97\u7b26\u3001\u8d4b\u503c\u8fd0\u7b97\u7b26\u548c length \u5c5e\u6027\u8bbf\u95ee\u3001\u64cd\u4f5c\u548c\u83b7\u53d6\u6570\u7ec4\u957f\u5ea6\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/04\/2024110403331434801.jpg\" class=\"aligncenter\" title=\"java\u600e\u4e48\u521b\u5efa\u4e00\u4e2a\u6570\u7ec4\u5bf9\u8c61\u63d2\u56fe\" alt=\"java\u600e\u4e48\u521b\u5efa\u4e00\u4e2a\u6570\u7ec4\u5bf9\u8c61\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u4f7f\u7528 Java \u521b\u5efa\u6570\u7ec4\u5bf9\u8c61<\/strong><\/p>\n<p><strong>\u521b\u5efa\u6570\u7ec4\u5bf9\u8c61<\/strong><\/p>\n<p>\u5728 Java \u4e2d\uff0c\u6570\u7ec4\u662f\u4e00\u79cd\u53ef\u4ee5\u5b58\u50a8\u76f8\u540c\u6570\u636e\u7c7b\u578b\u591a\u4e2a\u5143\u7d20\u7684\u5bb9\u5668\u3002\u8981\u521b\u5efa\u4e00\u4e2a\u6570\u7ec4\u5bf9\u8c61\uff0c\u60a8\u9700\u8981\uff1a<\/p>\n<ul>\n<li>\u6307\u5b9a\u6570\u7ec4\u5143\u7d20\u7684\u7c7b\u578b<\/li>\n<li>\u6307\u5b9a\u6570\u7ec4\u7684\u5927\u5c0f<\/li>\n<\/ul>\n<p><strong>\u8bed\u6cd5\uff1a<\/strong><\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<pre>&lt;data type&gt;[] &lt;array_name&gt; = new &lt;data type&gt;[&lt;size&gt;];<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u793a\u4f8b\uff1a<\/strong><\/p>\n<p>\u8981\u521b\u5efa\u4e00\u4e2a\u5b58\u50a8 5 \u4e2a\u6574\u6570\u7684\u6570\u7ec4\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u7801\uff1a<\/p>\n<pre>int[] numbers = new int[5];<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u4f7f\u7528\u6570\u7ec4<\/strong><\/p>\n<p>\u521b\u5efa\u6570\u7ec4\u5bf9\u8c61\u540e\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u65b9\u6cd5\u8bbf\u95ee\u548c\u64cd\u4f5c\u6570\u7ec4\uff1a<\/p>\n<ul>\n<li> <strong>\u8bbf\u95ee\u5143\u7d20\uff1a<\/strong>\u4f7f\u7528\u7d22\u5f15\u8fd0\u7b97\u7b26 ([]) \u8bbf\u95ee\u6570\u7ec4\u5143\u7d20\u3002<\/li>\n<li> <strong>\u8bbe\u7f6e\u5143\u7d20\uff1a<\/strong>\u4f7f\u7528\u8d4b\u503c\u8fd0\u7b97\u7b26 (=) \u8bbe\u7f6e\u6570\u7ec4\u5143\u7d20\u7684\u503c\u3002<\/li>\n<li> <strong>\u83b7\u53d6\u6570\u7ec4\u957f\u5ea6\uff1a<\/strong>\u4f7f\u7528 .length \u5c5e\u6027\u83b7\u53d6\u6570\u7ec4\u7684\u957f\u5ea6\u3002<\/li>\n<\/ul>\n<p><strong>\u793a\u4f8b\uff1a<\/strong><\/p>\n<pre>\/\/ \u8bbe\u7f6e\u6570\u7ec4\u5143\u7d20\nnumbers[0] = 10;\nnumbers[1] = 20;\n\n\/\/ \u8bbf\u95ee\u6570\u7ec4\u5143\u7d20\nint firstNumber = numbers[0]; \/\/ firstNumber = 10\n\n\/\/ \u83b7\u53d6\u6570\u7ec4\u957f\u5ea6\nint length = numbers.length; \/\/ length = 5<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u600e\u4e48\u521b\u5efa\u4e00\u4e2a\u6570\u7ec4\u5bf9\u8c61\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8IDCBABY\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6307\u5b9a\u5143\u7d20\u7c7b\u578b\u548c\u6570\u7ec4\u5927\u5c0f\uff1b\u4f7f\u7528 new \u8fd0\u7b97\u7b26\u521b\u5efa\u6570\u7ec4\u5bf9\u8c61\uff1b\u4f7f\u7528\u7d22\u5f15\u8fd0\u7b97\u7b26\u3001\u8d4b\u503c\u8fd0\u7b97\u7b26\u548c length \u5c5e\u6027\u8bbf\u95ee\u3001\u64cd\u4f5c\u548c\u83b7\u53d6\u6570\u7ec4\u957f\u5ea6\u3002 \u5982\u4f55\u4f7f\u7528 Java \u521b\u5efa\u6570\u7ec4\u5bf9\u8c61 \u521b\u5efa\u6570\u7ec4\u5bf9\u8c61 \u5728 Java \u4e2d\uff0c\u6570\u7ec4\u662f\u4e00\u79cd\u53ef\u4ee5\u5b58\u50a8\u76f8\u540c\u6570\u636e\u7c7b\u578b\u591a\u4e2a\u5143\u7d20\u7684\u5bb9\u5668\u3002\u8981\u521b\u5efa\u4e00\u4e2a\u6570\u7ec4\u5bf9\u8c61\uff0c\u60a8\u9700\u8981\uff1a \u6307\u5b9a\u6570\u7ec4\u5143\u7d20\u7684\u7c7b\u578b \u6307\u5b9a\u6570\u7ec4\u7684\u5927\u5c0f \u8bed\u6cd5\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b &lt;data type&gt;[] &lt;array_name&gt; = new &lt;data type&gt;[&lt;size&gt;]; \u767b\u5f55\u540e\u590d\u5236 \u793a\u4f8b\uff1a \u8981\u521b\u5efa\u4e00\u4e2a\u5b58\u50a8 5 \u4e2a\u6574\u6570\u7684\u6570\u7ec4\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u7801\uff1a int[] numbers = new int[5]; \u767b\u5f55\u540e\u590d\u5236 \u4f7f\u7528\u6570\u7ec4 \u521b\u5efa\u6570\u7ec4\u5bf9\u8c61\u540e\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u65b9\u6cd5\u8bbf\u95ee\u548c\u64cd\u4f5c\u6570\u7ec4\uff1a \u8bbf\u95ee\u5143\u7d20\uff1a\u4f7f\u7528\u7d22\u5f15\u8fd0\u7b97\u7b26 ([]) \u8bbf\u95ee\u6570\u7ec4\u5143\u7d20\u3002 \u8bbe\u7f6e\u5143\u7d20\uff1a\u4f7f\u7528\u8d4b\u503c\u8fd0\u7b97\u7b26 (=) \u8bbe\u7f6e\u6570\u7ec4\u5143\u7d20\u7684\u503c\u3002 \u83b7\u53d6\u6570\u7ec4\u957f\u5ea6\uff1a\u4f7f\u7528 .length \u5c5e\u6027\u83b7\u53d6\u6570\u7ec4\u7684\u957f\u5ea6\u3002 \u793a\u4f8b\uff1a \/\/ \u8bbe\u7f6e\u6570\u7ec4\u5143\u7d20 numbers[0] = 10; numbers[1] = 20; \/\/ [&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-64610","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/64610","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=64610"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/64610\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=64610"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=64610"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=64610"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}