{"id":70,"date":"2021-08-25T08:50:51","date_gmt":"2021-08-25T00:50:51","guid":{"rendered":"https:\/\/www.52dixiaowo.com\/javav2\/?p=70"},"modified":"2021-08-25T09:01:55","modified_gmt":"2021-08-25T01:01:55","slug":"java%e4%ba%8c%e7%bb%b4%e6%95%b0%e7%bb%84%e6%b7%b1%e6%8b%b7%e8%b4%9d","status":"publish","type":"post","link":"https:\/\/www.52dixiaowo.com\/javav2\/post-70.html","title":{"rendered":"java\u4e8c\u7ef4\u6570\u7ec4\u6df1\u62f7\u8d1d"},"content":{"rendered":"\n<p>java\u7684\u6570\u7ec4\u662f\u4e00\u4e2a\u5f15\u7528\u6570\u636e\u7c7b\u578b\uff0c\u5fc5\u987b\u6df1\u62f7\u8d1d\u624d\u80fd\u771f\u6b63\u7684\u590d\u5236<\/p>\n\n\n\n<p>\u6df1\u62f7\u8d1d\u662f\u6307\u590d\u5236\u6570\u636e\u5185\u5bb9\uff0c\u6d45\u62f7\u8d1d\u662f\u6307\u590d\u5236\u5f15\u7528\u5730\u5740<\/p>\n\n\n\n<p>\u4ee5\u4e8c\u7ef4\u6570\u7ec4\u4e3a\u4f8b\uff0c\u8fd9\u91cc\u5047\u8bbe\u957f\u5ea6\u4e0d\u786e\u5b9a\uff0c\u5219\u9700\u8981\u6c42\u51fa\u6240\u6709\u7684\u4e00\u7ef4\u6570\u7ec4\uff0c\u518d\u590d\u5236\u5230\u4e8c\u7ef4\u6570\u7ec4\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528Arrays.deepToString(Object)\u65b9\u6cd5\u5feb\u901f\u6253\u5370\u4e8c\u7ef4\u6570\u7ec4\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>    public static void main(String&#91;] args) {\n\n        int&#91;]&#91;] a = {{1,2,3},{4,5},{6,7,8,9}};\n\n        int&#91;]&#91;] b = new int&#91;a.length]&#91;];  \/\/ a \u62f7\u8d1d\u81f3 b\n\n        for (int i = 0; i &lt; a.length; i++) {\n            int&#91;] ab = new int&#91;a&#91;i].length];\n            for (int j = 0; j &lt; a&#91;i].length; j++) {\n                ab&#91;j] = a&#91;i]&#91;j];\n            }\n            b&#91;i] = ab;\n        }\n\n        System.out.println(Arrays.deepToString(b));\n\n\n    }<\/code><\/pre>\n\n\n\n<p>\u7a0b\u5e8f\u6267\u884c\u7ed3\u679c\uff1a<\/p>\n\n\n\n<ul><li>[[1, 2, 3], [4, 5], [6, 7, 8, 9]]<\/li><\/ul>\n\n\n\n<p>\u6b64\u5916\uff0c\u9488\u5bf9\u4e00\u7ef4\u6570\u7ec4\uff0cjava.util.Arrays\u63d0\u4f9b\u62f7\u8d1d\u65b9\u6cd5copyOf\uff0c\u4e0a\u8ff0\u4ee3\u7801\u53ef\u4ee5\u6539\u4e3a\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>    public static void main(String&#91;] args) {\n\n        int&#91;]&#91;] a = {{1,2,3},{4,5},{6,7,8,9}};\n\n\n        int&#91;]&#91;] b = new int&#91;a.length]&#91;];  \/\/ a \u62f7\u8d1d\u81f3 b\n\n        for (int i = 0; i &lt; a.length; i++) {\n            b&#91;i] = Arrays.copyOf(a&#91;i],a&#91;i].length);  \/\/ \u6570\u7ec4\uff0c\u7ec8\u6b62\u4f4d\u7f6e\n        }\n\n        System.out.println(Arrays.deepToString(b));\n\n    }<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>java\u7684\u6570\u7ec4\u662f\u4e00\u4e2a\u5f15\u7528\u6570\u636e\u7c7b\u578b\uff0c\u5fc5\u987b\u6df1\u62f7\u8d1d\u624d\u80fd\u771f\u6b63\u7684\u590d\u5236 \u6df1\u62f7\u8d1d\u662f\u6307\u590d\u5236\u6570\u636e\u5185\u5bb9\uff0c\u6d45\u62f7\u8d1d\u662f\u6307\u590d\u5236\u5f15\u7528\u5730\u5740 \u4ee5&hellip; <a href=\"https:\/\/www.52dixiaowo.com\/javav2\/post-70.html\" class=\"more-link\">\u7ee7\u7eed\u9605\u8bfb <span class=\"screen-reader-text\">java\u4e8c\u7ef4\u6570\u7ec4\u6df1\u62f7\u8d1d<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[3],"tags":[],"_links":{"self":[{"href":"https:\/\/www.52dixiaowo.com\/javav2\/wp-json\/wp\/v2\/posts\/70"}],"collection":[{"href":"https:\/\/www.52dixiaowo.com\/javav2\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.52dixiaowo.com\/javav2\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/javav2\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/javav2\/wp-json\/wp\/v2\/comments?post=70"}],"version-history":[{"count":1,"href":"https:\/\/www.52dixiaowo.com\/javav2\/wp-json\/wp\/v2\/posts\/70\/revisions"}],"predecessor-version":[{"id":71,"href":"https:\/\/www.52dixiaowo.com\/javav2\/wp-json\/wp\/v2\/posts\/70\/revisions\/71"}],"wp:attachment":[{"href":"https:\/\/www.52dixiaowo.com\/javav2\/wp-json\/wp\/v2\/media?parent=70"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/javav2\/wp-json\/wp\/v2\/categories?post=70"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/javav2\/wp-json\/wp\/v2\/tags?post=70"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}