{"id":38703,"date":"2024-11-26T11:07:30","date_gmt":"2024-11-26T03:07:30","guid":{"rendered":"https:\/\/fwq.ai\/blog\/38703\/"},"modified":"2024-11-26T11:07:30","modified_gmt":"2024-11-26T03:07:30","slug":"java%e4%b8%ad%e7%9a%84%e6%95%b0%e7%bb%84%e5%86%85%e5%ae%b9%e9%9c%80%e8%a6%81%e6%80%8e%e4%b9%88%e6%8e%8c%e6%8f%a1","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/38703\/","title":{"rendered":"java\u4e2d\u7684\u6570\u7ec4\u5185\u5bb9\u9700\u8981\u600e\u4e48\u638c\u63e1"},"content":{"rendered":"<blockquote><p>\n  \u638c\u63e1 java \u6570\u7ec4\u5185\u5bb9\uff1a1. \u83b7\u53d6\u6570\u7ec4\u5185\u5bb9\uff1a\u7d22\u5f15\u503c\u6216\u589e\u5f3a for \u5faa\u73af\uff1b2. \u8bbe\u7f6e\u6570\u7ec4\u5185\u5bb9\uff1a\u901a\u8fc7\u7d22\u5f15\u503c\uff1b3. \u6570\u7ec4\u957f\u5ea6\uff1a\u901a\u8fc7 length \u5c5e\u6027\u83b7\u53d6\uff1b4. \u4e8c\u7ef4\u6570\u7ec4\uff1a\u5305\u542b\u5176\u4ed6\u6570\u7ec4\u7684\u6570\u7ec4\uff1b5. \u6700\u4f73\u5b9e\u8df5\uff1a\u9002\u5f53\u7d22\u5f15\u3001\u907f\u514d\u8d8a\u754c\u3001\u660e\u786e\u957f\u5ea6\u3001\u4f7f\u7528\u589e\u5f3a for \u5faa\u73af\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/15\/2024111505205365221.jpg\" class=\"aligncenter\" title=\"java\u4e2d\u7684\u6570\u7ec4\u5185\u5bb9\u9700\u8981\u600e\u4e48\u638c\u63e1\u63d2\u56fe\" alt=\"java\u4e2d\u7684\u6570\u7ec4\u5185\u5bb9\u9700\u8981\u600e\u4e48\u638c\u63e1\u63d2\u56fe\" \/><\/p>\n<p><strong>\u638c\u63e1 Java \u4e2d\u6570\u7ec4\u5185\u5bb9\u7684\u6280\u5de7<\/strong><\/p>\n<p>\u6570\u7ec4\u5728 Java \u4e2d\u662f\u4e00\u79cd\u7528\u4e8e\u5b58\u50a8\u540c\u7c7b\u578b\u6570\u636e\u7684\u96c6\u5408\u3002\u638c\u63e1\u6570\u7ec4\u5185\u5bb9\u5bf9\u4e8e\u6709\u6548\u5904\u7406\u548c\u64cd\u7eb5\u6570\u636e\u81f3\u5173\u91cd\u8981\u3002<\/p>\n<p><strong>\u83b7\u53d6\u6570\u7ec4\u5185\u5bb9<\/strong><\/p>\n<p>\u83b7\u53d6\u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u65b9\u6cd5\u6709\u4e24\u79cd\uff1a<\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<ul>\n<li> <strong>\u7d22\u5f15\u503c\uff1a<\/strong> \u4f7f\u7528\u65b9\u62ec\u53f7 [ ] \u83b7\u53d6\u7279\u5b9a\u7d22\u5f15\u5904\u7684\u503c\u3002\u4f8b\u5982\uff1a int[] numbers = {1, 2, 3}; int firstNumber = numbers[0];<\/li>\n<li> <strong>\u589e\u5f3a for \u5faa\u73af\uff1a<\/strong> \u4f7f\u7528\u589e\u5f3a for \u5faa\u73af\u904d\u5386\u6570\u7ec4\u6240\u6709\u5143\u7d20\u3002\u4f8b\u5982\uff1a for (int number : numbers) { System.out.println(number); }<\/li>\n<\/ul>\n<p><strong>\u8bbe\u7f6e\u6570\u7ec4\u5185\u5bb9<\/strong><\/p>\n<p>\u901a\u8fc7\u7d22\u5f15\u503c\u53ef\u4ee5\u4fee\u6539\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u3002\u4f8b\u5982\uff1a<\/p>\n<pre>int[] numbers = {1, 2, 3};\nnumbers[0] = 5; \/\/ \u5c06\u7b2c\u4e00\u4e2a\u5143\u7d20\u8bbe\u4e3a 5<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u6570\u7ec4\u957f\u5ea6<\/strong><\/p>\n<p>\u53ef\u4ee5\u901a\u8fc7 length \u5c5e\u6027\u83b7\u53d6\u6570\u7ec4\u7684\u957f\u5ea6\uff0c\u5b83\u8868\u793a\u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u6570\u91cf\u3002\u4f8b\u5982\uff1a<\/p>\n<pre>int[] numbers = {1, 2, 3};\nint length = numbers.length; \/\/ length = 3<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u4e8c\u7ef4\u6570\u7ec4<\/strong><\/p>\n<p>Java \u4e2d\u7684\u6570\u7ec4\u53ef\u4ee5\u662f\u591a\u7ef4\u7684\u3002\u4e8c\u7ef4\u6570\u7ec4\u662f\u4e00\u4e2a\u5305\u542b\u5176\u4ed6\u6570\u7ec4\u7684\u6570\u7ec4\u3002\u6bcf\u4e2a\u5185\u90e8\u6570\u7ec4\u88ab\u79f0\u4e3a\u884c\uff0c\u800c\u5916\u90e8\u6570\u7ec4\u88ab\u79f0\u4e3a\u5217\u3002\u4f8b\u5982\uff1a<\/p>\n<pre>int[][] matrix = {\n    {1, 2, 3},\n    {4, 5, 6}\n};<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u6700\u4f73\u5b9e\u8df5<\/strong><\/p>\n<p>\u638c\u63e1\u6570\u7ec4\u5185\u5bb9\u7684\u6700\u4f73\u5b9e\u8df5\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>\u4f7f\u7528\u9002\u5f53\u7684\u7d22\u5f15\u503c\u6765\u8bbf\u95ee\u548c\u4fee\u6539\u6570\u7ec4\u5143\u7d20\u3002<\/li>\n<li>\u907f\u514d\u6570\u7ec4\u8d8a\u754c\u3002<\/li>\n<li>\u660e\u786e\u6570\u7ec4\u7684\u957f\u5ea6\u5e76\u76f8\u5e94\u5730\u5206\u914d\u7a7a\u95f4\u3002<\/li>\n<li>\u4f7f\u7528\u589e\u5f3a for \u5faa\u73af\u904d\u5386\u6570\u7ec4\u4ee5\u63d0\u9ad8\u53ef\u8bfb\u6027\u548c\u6548\u7387\u3002<\/li>\n<\/ul>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u4e2d\u7684\u6570\u7ec4\u5185\u5bb9\u9700\u8981\u600e\u4e48\u638c\u63e1\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>\u638c\u63e1 java \u6570\u7ec4\u5185\u5bb9\uff1a1. \u83b7\u53d6\u6570\u7ec4\u5185\u5bb9\uff1a\u7d22\u5f15\u503c\u6216\u589e\u5f3a for \u5faa\u73af\uff1b2. \u8bbe\u7f6e\u6570\u7ec4\u5185\u5bb9\uff1a\u901a\u8fc7\u7d22\u5f15\u503c\uff1b3. \u6570\u7ec4\u957f\u5ea6\uff1a\u901a\u8fc7 length \u5c5e\u6027\u83b7\u53d6\uff1b4. \u4e8c\u7ef4\u6570\u7ec4\uff1a\u5305\u542b\u5176\u4ed6\u6570\u7ec4\u7684\u6570\u7ec4\uff1b5. \u6700\u4f73\u5b9e\u8df5\uff1a\u9002\u5f53\u7d22\u5f15\u3001\u907f\u514d\u8d8a\u754c\u3001\u660e\u786e\u957f\u5ea6\u3001\u4f7f\u7528\u589e\u5f3a for \u5faa\u73af\u3002 \u638c\u63e1 Java \u4e2d\u6570\u7ec4\u5185\u5bb9\u7684\u6280\u5de7 \u6570\u7ec4\u5728 Java \u4e2d\u662f\u4e00\u79cd\u7528\u4e8e\u5b58\u50a8\u540c\u7c7b\u578b\u6570\u636e\u7684\u96c6\u5408\u3002\u638c\u63e1\u6570\u7ec4\u5185\u5bb9\u5bf9\u4e8e\u6709\u6548\u5904\u7406\u548c\u64cd\u7eb5\u6570\u636e\u81f3\u5173\u91cd\u8981\u3002 \u83b7\u53d6\u6570\u7ec4\u5185\u5bb9 \u83b7\u53d6\u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u65b9\u6cd5\u6709\u4e24\u79cd\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b \u7d22\u5f15\u503c\uff1a \u4f7f\u7528\u65b9\u62ec\u53f7 [ ] \u83b7\u53d6\u7279\u5b9a\u7d22\u5f15\u5904\u7684\u503c\u3002\u4f8b\u5982\uff1a int[] numbers = {1, 2, 3}; int firstNumber = numbers[0]; \u589e\u5f3a for \u5faa\u73af\uff1a \u4f7f\u7528\u589e\u5f3a for \u5faa\u73af\u904d\u5386\u6570\u7ec4\u6240\u6709\u5143\u7d20\u3002\u4f8b\u5982\uff1a for (int number : numbers) { System.out.println(number); } \u8bbe\u7f6e\u6570\u7ec4\u5185\u5bb9 \u901a\u8fc7\u7d22\u5f15\u503c\u53ef\u4ee5\u4fee\u6539\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u3002\u4f8b\u5982\uff1a int[] [&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-38703","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/38703","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=38703"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/38703\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=38703"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=38703"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=38703"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}