{"id":39493,"date":"2024-11-26T09:42:49","date_gmt":"2024-11-26T01:42:49","guid":{"rendered":"https:\/\/fwq.ai\/blog\/39493\/"},"modified":"2024-11-26T09:42:49","modified_gmt":"2024-11-26T01:42:49","slug":"java%e4%ba%8c%e7%bb%b4%e6%95%b0%e7%bb%84%e6%80%8e%e4%b9%88%e5%ae%9e%e7%8e%b0%e4%bf%ae%e6%94%b9","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/39493\/","title":{"rendered":"java\u4e8c\u7ef4\u6570\u7ec4\u600e\u4e48\u5b9e\u73b0\u4fee\u6539"},"content":{"rendered":"<blockquote><p>\n  java\u4e8c\u7ef4\u6570\u7ec4\u53ef\u4ee5\u901a\u8fc7\u9010\u4e2a\u5143\u7d20\u4fee\u6539\u7d22\u5f15\u503c\u7684\u65b9\u5f0f\u4fee\u6539\u3002\u8981\u4fee\u6539\u5143\u7d20\uff0c\u4f7f\u7528arrayrowindex = newvalue\u8bed\u6cd5\uff0c\u5176\u4e2darray\u662f\u6570\u7ec4\u540d\u79f0\uff0crowindex\u662f\u884c\u7d22\u5f15\uff0ccolumnindex\u662f\u5217\u7d22\u5f15\uff0cnewvalue\u662f\u65b0\u503c\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/16\/2024111611393934439.jpg\" class=\"aligncenter\" title=\"java\u4e8c\u7ef4\u6570\u7ec4\u600e\u4e48\u5b9e\u73b0\u4fee\u6539\u63d2\u56fe\" alt=\"java\u4e8c\u7ef4\u6570\u7ec4\u600e\u4e48\u5b9e\u73b0\u4fee\u6539\u63d2\u56fe\" \/><\/p>\n<p><strong>Java \u4e8c\u7ef4\u6570\u7ec4\u4fee\u6539<\/strong><\/p>\n<p>Java \u4e2d\u7684\u4e8c\u7ef4\u6570\u7ec4\u53ef\u4ee5\u4fee\u6539\uff0c\u65b9\u6cd5\u662f\u901a\u8fc7\u7d22\u5f15\u9010\u4e2a\u5143\u7d20\u4fee\u6539\u3002<\/p>\n<p><strong>\u8bed\u6cd5<\/strong><\/p>\n<p>\u8981\u4fee\u6539\u4e8c\u7ef4\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\uff0c\u4f7f\u7528\u4ee5\u4e0b\u8bed\u6cd5\uff1a<\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<pre>array[rowIndex][columnIndex] = newValue;<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u5176\u4e2d\uff1a<\/p>\n<ul>\n<li>array \u662f\u4e8c\u7ef4\u6570\u7ec4\u7684\u540d\u79f0\u3002<\/li>\n<li>rowIndex \u662f\u8981\u4fee\u6539\u5143\u7d20\u6240\u5728\u884c\u7684\u7d22\u5f15\u3002<\/li>\n<li>columnIndex \u662f\u8981\u4fee\u6539\u5143\u7d20\u6240\u5728\u5217\u7684\u7d22\u5f15\u3002<\/li>\n<li>newValue \u662f\u65b0\u503c\u3002<\/li>\n<\/ul>\n<p><strong>\u793a\u4f8b<\/strong><\/p>\n<p>\u5047\u8bbe\u6211\u4eec\u6709\u4e00\u4e2a\u4e8c\u7ef4\u6570\u7ec4 arr\uff1a<\/p>\n<pre>int[][] arr = {{1, 2}, {3, 4}};<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u8981\u4fee\u6539\u7b2c\u4e00\u884c\u7b2c\u4e8c\u5217\u7684\u5143\u7d20\u4e3a 5\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u7801\uff1a<\/p>\n<pre>arr[0][1] = 5;<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u6267\u884c\u6b64\u4ee3\u7801\u540e\uff0carr \u6570\u7ec4\u5c06\u53d8\u6210\uff1a<\/p>\n<pre>{{1, 5}, {3, 4}};<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u4e8c\u7ef4\u6570\u7ec4\u600e\u4e48\u5b9e\u73b0\u4fee\u6539\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\u4e8c\u7ef4\u6570\u7ec4\u53ef\u4ee5\u901a\u8fc7\u9010\u4e2a\u5143\u7d20\u4fee\u6539\u7d22\u5f15\u503c\u7684\u65b9\u5f0f\u4fee\u6539\u3002\u8981\u4fee\u6539\u5143\u7d20\uff0c\u4f7f\u7528arrayrowindex = newvalue\u8bed\u6cd5\uff0c\u5176\u4e2darray\u662f\u6570\u7ec4\u540d\u79f0\uff0crowindex\u662f\u884c\u7d22\u5f15\uff0ccolumnindex\u662f\u5217\u7d22\u5f15\uff0cnewvalue\u662f\u65b0\u503c\u3002 Java \u4e8c\u7ef4\u6570\u7ec4\u4fee\u6539 Java \u4e2d\u7684\u4e8c\u7ef4\u6570\u7ec4\u53ef\u4ee5\u4fee\u6539\uff0c\u65b9\u6cd5\u662f\u901a\u8fc7\u7d22\u5f15\u9010\u4e2a\u5143\u7d20\u4fee\u6539\u3002 \u8bed\u6cd5 \u8981\u4fee\u6539\u4e8c\u7ef4\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\uff0c\u4f7f\u7528\u4ee5\u4e0b\u8bed\u6cd5\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b array[rowIndex][columnIndex] = newValue; \u767b\u5f55\u540e\u590d\u5236 \u5176\u4e2d\uff1a array \u662f\u4e8c\u7ef4\u6570\u7ec4\u7684\u540d\u79f0\u3002 rowIndex \u662f\u8981\u4fee\u6539\u5143\u7d20\u6240\u5728\u884c\u7684\u7d22\u5f15\u3002 columnIndex \u662f\u8981\u4fee\u6539\u5143\u7d20\u6240\u5728\u5217\u7684\u7d22\u5f15\u3002 newValue \u662f\u65b0\u503c\u3002 \u793a\u4f8b \u5047\u8bbe\u6211\u4eec\u6709\u4e00\u4e2a\u4e8c\u7ef4\u6570\u7ec4 arr\uff1a int[][] arr = {{1, 2}, {3, 4}}; \u767b\u5f55\u540e\u590d\u5236 \u8981\u4fee\u6539\u7b2c\u4e00\u884c\u7b2c\u4e8c\u5217\u7684\u5143\u7d20\u4e3a 5\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u7801\uff1a arr[0][1] = 5; \u767b\u5f55\u540e\u590d\u5236 \u6267\u884c\u6b64\u4ee3\u7801\u540e\uff0carr \u6570\u7ec4\u5c06\u53d8\u6210\uff1a {{1, 5}, {3, 4}}; \u767b\u5f55\u540e\u590d\u5236 \u4ee5\u4e0a\u5c31\u662fjava\u4e8c\u7ef4\u6570\u7ec4\u600e\u4e48\u5b9e\u73b0\u4fee\u6539\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-39493","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/39493","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=39493"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/39493\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=39493"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=39493"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=39493"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}