{"id":66832,"date":"2025-05-03T12:09:08","date_gmt":"2025-05-03T04:09:08","guid":{"rendered":"https:\/\/fwq.ai\/blog\/66832\/"},"modified":"2025-05-03T12:09:08","modified_gmt":"2025-05-03T04:09:08","slug":"java%e6%80%8e%e4%b9%88%e6%8a%8a%e6%95%b4%e6%95%b0%e8%bd%ac%e6%8d%a2%e6%88%90%e6%95%b0%e7%bb%84-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/66832\/","title":{"rendered":"java\u600e\u4e48\u628a\u6574\u6570\u8f6c\u6362\u6210\u6570\u7ec4"},"content":{"rendered":"<blockquote><p>\n  \u5c06 java \u4e2d\u7684\u6574\u6570\u8f6c\u6362\u6210\u6570\u7ec4\u6709\u4e24\u79cd\u65b9\u6cd5\uff1a\u4f7f\u7528 string \u6570\u7ec4\uff1a\u5c06\u6574\u6570\u8f6c\u6362\u4e3a string\uff0c\u518d\u5c06 string \u62c6\u5206\u4e3a\u5b57\u7b26\u6570\u7ec4\uff0c\u6700\u540e\u5c06\u6bcf\u4e2a\u5b57\u7b26\u8f6c\u6362\u4e3a\u6574\u6570\u3002\u4f7f\u7528 int[] \u6570\u7ec4\uff1a\u521b\u5efa\u4e0e\u6574\u6570\u4f4d\u6570\u76f8\u540c\u5927\u5c0f\u7684\u6570\u7ec4\uff0c\u4ece\u6700\u4f4e\u4f4d\u5f00\u59cb\u9664\u4ee5 10 \u5e76\u8bb0\u5f55\u4f59\u6570\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/17\/2024111711432014858.jpg\" class=\"aligncenter\" title=\"java\u600e\u4e48\u628a\u6574\u6570\u8f6c\u6362\u6210\u6570\u7ec4\u63d2\u56fe\" alt=\"java\u600e\u4e48\u628a\u6574\u6570\u8f6c\u6362\u6210\u6570\u7ec4\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u5c06 Java \u4e2d\u7684\u6574\u6570\u8f6c\u6362\u6210\u6570\u7ec4<\/strong><\/p>\n<p>\u8981\u5c06 Java \u4e2d\u7684\u6574\u6570\u8f6c\u6362\u6210\u6570\u7ec4\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u65b9\u6cd5\uff1a<\/p>\n<p><strong>\u65b9\u6cd5\u4e00\uff1a\u4f7f\u7528 String \u6570\u7ec4<\/strong><\/p>\n<ul>\n<li>\n<p><strong>\u6b65\u9aa4\uff1a<\/strong><\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<ol>\n<li>\u5c06\u6574\u6570\u8f6c\u6362\u4e3a String\uff1aString str = String.valueOf(num);<\/li>\n<li>\u5c06 String \u62c6\u5206\u4e3a\u5b57\u7b26\u6570\u7ec4\uff1achar[] chars = str.toCharArray();<\/li>\n<li>\n<p>\u904d\u5386\u5b57\u7b26\u6570\u7ec4\uff0c\u5c06\u6bcf\u4e2a\u5b57\u7b26\u8f6c\u6362\u4e3a\u6574\u6570\uff1aint[] dis = new int[chars.length];<br \/>for (int i = 0; i <\/p>\n<pre>`digits[i] = Integer.parseInt(chars[i]);`<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>}<\/p>\n<\/li>\n<\/ol>\n<\/li>\n<\/ul>\n<p><strong>\u65b9\u6cd5\u4e8c\uff1a\u4f7f\u7528 int[] \u6570\u7ec4<\/strong><\/p>\n<ul>\n<li>\n<p><strong>\u6b65\u9aa4\uff1a<\/strong><\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<ol>\n<li>\u521b\u5efa\u4e00\u4e2a\u4e0e\u6570\u5b57\u4f4d\u6570\u76f8\u540c\u5927\u5c0f\u7684 int[] \u6570\u7ec4\uff1aint[] digits = new int[numDigits(num)];<\/li>\n<li>\n<p>\u4ece\u6700\u4f4e\u4f4d\u5f00\u59cb\uff0c\u5faa\u73af\u9664\u4ee5 10 \u5e76\u8bb0\u5f55\u4f59\u6570\uff1afor (int i = digits.length &#8211; 1; i &gt;= 0; i&#8211;) {<\/p>\n<pre>`digits[i] = num % 10;`\n`num \/= 10;`<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>}<\/p>\n<\/li>\n<\/ol>\n<\/li>\n<\/ul>\n<p><strong>\u8f85\u52a9\u65b9\u6cd5\uff1a<\/strong><\/p>\n<p>numDigits() \u65b9\u6cd5\u7528\u4e8e\u8ba1\u7b97\u6574\u6570\u7684\u4f4d\u6570\uff1a<\/p>\n<pre>private static int numDigits(int num) {\n    int count = 0;\n    while (num &gt; 0) {\n        num \/= 10;\n        count++;\n    }\n    return count;\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u793a\u4f8b\uff1a<\/strong><\/p>\n<p>\u5c06\u6574\u6570 12345 \u8f6c\u6362\u4e3a\u6570\u7ec4\uff1a<\/p>\n<p><strong>\u65b9\u6cd5\u4e00\uff1a<\/strong><\/p>\n<pre>int num = 12345;\nString str = String.valueOf(num);\nchar[] chars = str.toCharArray();\nint[] digits = new int[chars.length];\nfor (int i = 0; i &lt; chars.length; i++) {\n    digits[i] = Integer.parseInt(chars[i]);\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u65b9\u6cd5\u4e8c\uff1a<\/strong><\/p>\n<pre>int num = 12345;\nint[] digits = new int[numDigits(num)];\nfor (int i = digits.length - 1; i &gt;= 0; i--) {\n    digits[i] = num % 10;\n    num \/= 10;\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u600e\u4e48\u628a\u6574\u6570\u8f6c\u6362\u6210\u6570\u7ec4\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>\u5c06 java \u4e2d\u7684\u6574\u6570\u8f6c\u6362\u6210\u6570\u7ec4\u6709\u4e24\u79cd\u65b9\u6cd5\uff1a\u4f7f\u7528 string \u6570\u7ec4\uff1a\u5c06\u6574\u6570\u8f6c\u6362\u4e3a string\uff0c\u518d\u5c06 string \u62c6\u5206\u4e3a\u5b57\u7b26\u6570\u7ec4\uff0c\u6700\u540e\u5c06\u6bcf\u4e2a\u5b57\u7b26\u8f6c\u6362\u4e3a\u6574\u6570\u3002\u4f7f\u7528 int[] \u6570\u7ec4\uff1a\u521b\u5efa\u4e0e\u6574\u6570\u4f4d\u6570\u76f8\u540c\u5927\u5c0f\u7684\u6570\u7ec4\uff0c\u4ece\u6700\u4f4e\u4f4d\u5f00\u59cb\u9664\u4ee5 10 \u5e76\u8bb0\u5f55\u4f59\u6570\u3002 \u5982\u4f55\u5c06 Java \u4e2d\u7684\u6574\u6570\u8f6c\u6362\u6210\u6570\u7ec4 \u8981\u5c06 Java \u4e2d\u7684\u6574\u6570\u8f6c\u6362\u6210\u6570\u7ec4\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u65b9\u6cd5\uff1a \u65b9\u6cd5\u4e00\uff1a\u4f7f\u7528 String \u6570\u7ec4 \u6b65\u9aa4\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b \u5c06\u6574\u6570\u8f6c\u6362\u4e3a String\uff1aString str = String.valueOf(num); \u5c06 String \u62c6\u5206\u4e3a\u5b57\u7b26\u6570\u7ec4\uff1achar[] chars = str.toCharArray(); \u904d\u5386\u5b57\u7b26\u6570\u7ec4\uff0c\u5c06\u6bcf\u4e2a\u5b57\u7b26\u8f6c\u6362\u4e3a\u6574\u6570\uff1aint[] dis = new int[chars.length];for (int i = 0; i `digits[i] = Integer.parseInt(chars[i]);` \u767b\u5f55\u540e\u590d\u5236 } \u65b9\u6cd5\u4e8c\uff1a\u4f7f\u7528 int[] \u6570\u7ec4 \u6b65\u9aa4\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b \u521b\u5efa\u4e00\u4e2a\u4e0e\u6570\u5b57\u4f4d\u6570\u76f8\u540c\u5927\u5c0f\u7684 [&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-66832","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/66832","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=66832"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/66832\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=66832"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=66832"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=66832"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}