{"id":65664,"date":"2025-05-03T17:21:16","date_gmt":"2025-05-03T09:21:16","guid":{"rendered":"https:\/\/fwq.ai\/blog\/65664\/"},"modified":"2025-05-03T17:21:16","modified_gmt":"2025-05-03T09:21:16","slug":"java%e9%87%8c%e5%a4%9a%e7%bb%b4%e6%95%b0%e7%bb%84%e6%80%8e%e4%b9%88%e9%81%8d%e5%8e%86-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/65664\/","title":{"rendered":"java\u91cc\u591a\u7ef4\u6570\u7ec4\u600e\u4e48\u904d\u5386"},"content":{"rendered":"

\n java\u591a\u7ef4\u6570\u7ec4\u904d\u5386\u65b9\u6cd5\uff1a\u5d4c\u5957 for \u5faa\u73af\uff1a\u5916\u5c42\u5faa\u73af\u904d\u5386\u5916\u5c42\u6570\u7ec4\uff0c\u5185\u5c42\u5faa\u73af\u904d\u5386\u5185\u5c42\u6570\u7ec4\u3002foreach \u5faa\u73af\uff1a\u5bf9\u4e8e\u6bcf\u4e00\u7ef4\u4f7f\u7528 foreach \u5faa\u73af\u904d\u5386\uff0c\u81ea\u52a8\u8fed\u4ee3\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u3002\n<\/p><\/blockquote>\n

\"java\u91cc\u591a\u7ef4\u6570\u7ec4\u600e\u4e48\u904d\u5386\u63d2\u56fe\"<\/p>\n

Java \u591a\u7ef4\u6570\u7ec4\u904d\u5386<\/strong><\/p>\n

Java\u4e2d\u7684\u591a\u7ef4\u6570\u7ec4\u662f\u4e00\u4e2a\u6570\u7ec4\u7684\u6570\u7ec4\uff0c\u5b83\u53ef\u4ee5\u5b58\u50a8\u4e0d\u540c\u7c7b\u578b\u6570\u636e\u7684\u4e8c\u7ef4\u6216\u591a\u7ef4\u96c6\u5408\u3002\u904d\u5386\u591a\u7ef4\u6570\u7ec4\u6d89\u53ca\u4f7f\u7528\u5d4c\u5957\u5faa\u73af\u8bbf\u95ee\u6bcf\u4e2a\u5143\u7d20\u3002<\/p>\n

\u904d\u5386\u65b9\u6cd5\uff1a<\/strong><\/p>\n

    \n
  1. \n

    \u4f7f\u7528\u5d4c\u5957 for \u5faa\u73af\uff1a<\/strong><\/p>\n

    \u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n

      \n
    • \u5bf9\u4e8e\u6bcf\u4e00\u7ef4\uff0c\u4f7f\u7528\u4e00\u4e2a for \u5faa\u73af\u904d\u5386\u3002<\/li>\n
    • \u5916\u5c42\u5faa\u73af\u8d1f\u8d23\u904d\u5386\u5916\u5c42\u6570\u7ec4\uff0c\u800c\u5185\u5c42\u5faa\u73af\u904d\u5386\u5185\u5c42\u6570\u7ec4\u3002<\/li>\n
    • \u4ee5\u4e0b\u4ee3\u7801\u904d\u5386\u4e8c\u7ef4\u6570\u7ec4\uff1a<\/li>\n<\/ul>\n
      int[][] arr = {{1, 2, 3}, {4, 5, 6}};\nfor (int i = 0; i < arr.length; i++) {\n    for (int j = 0; j < arr[i].length; j++) {\n        System.out.println(arr[i][j]);\n    }\n}<\/pre>\n
       \u767b\u5f55\u540e\u590d\u5236 <\/li>\n
    • \n
      \u4f7f\u7528 foreach \u5faa\u73af\uff1a<\/strong><\/p>\n
        \n
      • \u5bf9\u4e8e\u6bcf\u4e00\u7ef4\uff0c\u4f7f\u7528 foreach \u5faa\u73af\u904d\u5386\u3002<\/li>\n
      • foreach \u5faa\u73af\u5c06\u81ea\u52a8\u8fed\u4ee3\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u3002<\/li>\n
      • \u4ee5\u4e0b\u4ee3\u7801\u4e5f\u904d\u5386\u4e8c\u7ef4\u6570\u7ec4\uff1a<\/li>\n<\/ul>\n
        for (int[] row : arr) {\n    for (int element : row) {\n        System.out.println(element);\n    }\n}<\/pre>\n
         \u767b\u5f55\u540e\u590d\u5236 \u767b\u5f55\u540e\u590d\u5236 <\/li>\n<\/ol>\n
        \u793a\u4f8b\uff1a<\/strong><\/p>\n
        \u8003\u8651\u4e00\u4e2a 3×4 \u7684\u4e8c\u7ef4\u6570\u7ec4 arr\uff1a<\/p>\n
        int[][] arr = {{1, 2, 3, 4}, {5, 6, 7, 8}, {9, 10, 11, 12}};<\/pre>\n
         \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
        \u4f7f\u7528\u5d4c\u5957 for \u5faa\u73af\u904d\u5386\u6570\u7ec4\uff1a<\/p>\n
        for (int i = 0; i < arr.length; i++) {\n    for (int j = 0; j < arr[i].length; j++) {\n        System.out.println(arr[i][j]);\n    }\n}<\/pre>\n
         \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
        \u4f7f\u7528 foreach \u5faa\u73af\u904d\u5386\u6570\u7ec4\uff1a<\/p>\n
        for (int[] row : arr) {\n    for (int element : row) {\n        System.out.println(element);\n    }\n}<\/pre>\n
         \u767b\u5f55\u540e\u590d\u5236 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
        \u6ce8\u610f\uff1a<\/strong><\/p>\n
          \n
        • \u591a\u7ef4\u6570\u7ec4\u7684\u7ef4\u5ea6\u51b3\u5b9a\u4e86\u904d\u5386\u7684\u6df1\u5ea6\u3002\u5bf9\u4e8e\u4e8c\u7ef4\u6570\u7ec4\uff0c\u9700\u8981\u4e24\u4e2a\u5d4c\u5957\u5faa\u73af\u3002<\/li>\n
        • \u5bf9\u4e8e\u66f4\u9ad8\u7ea7\u522b\u7684\u591a\u7ef4\u6570\u7ec4\uff0c\u9700\u8981\u76f8\u5e94\u6570\u91cf\u7684\u5d4c\u5957\u5faa\u73af\u3002<\/li>\n
        • \u5728\u8bbf\u95ee\u6570\u7ec4\u5143\u7d20\u65f6\uff0c\u786e\u4fdd\u4f7f\u7528\u6b63\u786e\u7684\u7d22\u5f15\uff0c\u8d85\u51fa\u6570\u7ec4\u8303\u56f4\u7684\u8bbf\u95ee\u4f1a\u5bfc\u81f4\u6570\u7ec4\u7d22\u5f15\u8d8a\u754c\u5f02\u5e38\u3002<\/li>\n<\/ul>\n
          \u4ee5\u4e0a\u5c31\u662fjava\u91cc\u591a\u7ef4\u6570\u7ec4\u600e\u4e48\u904d\u5386\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8IDCBABY\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
          java\u591a\u7ef4\u6570\u7ec4\u904d\u5386\u65b9\u6cd5\uff1a\u5d4c\u5957 for \u5faa\u73af\uff1a\u5916\u5c42\u5faa\u73af\u904d\u5386\u5916\u5c42\u6570\u7ec4\uff0c\u5185\u5c42\u5faa\u73af\u904d\u5386\u5185\u5c42\u6570\u7ec4\u3002foreach \u5faa\u73af\uff1a\u5bf9\u4e8e\u6bcf\u4e00\u7ef4\u4f7f\u7528 foreach \u5faa\u73af\u904d\u5386\uff0c\u81ea\u52a8\u8fed\u4ee3\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u3002 Java \u591a\u7ef4\u6570\u7ec4\u904d\u5386 Java\u4e2d\u7684\u591a\u7ef4\u6570\u7ec4\u662f\u4e00\u4e2a\u6570\u7ec4\u7684\u6570\u7ec4\uff0c\u5b83\u53ef\u4ee5\u5b58\u50a8\u4e0d\u540c\u7c7b\u578b\u6570\u636e\u7684\u4e8c\u7ef4\u6216\u591a\u7ef4\u96c6\u5408\u3002\u904d\u5386\u591a\u7ef4\u6570\u7ec4\u6d89\u53ca\u4f7f\u7528\u5d4c\u5957\u5faa\u73af\u8bbf\u95ee\u6bcf\u4e2a\u5143\u7d20\u3002 \u904d\u5386\u65b9\u6cd5\uff1a \u4f7f\u7528\u5d4c\u5957 for \u5faa\u73af\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b \u5bf9\u4e8e\u6bcf\u4e00\u7ef4\uff0c\u4f7f\u7528\u4e00\u4e2a for \u5faa\u73af\u904d\u5386\u3002 \u5916\u5c42\u5faa\u73af\u8d1f\u8d23\u904d\u5386\u5916\u5c42\u6570\u7ec4\uff0c\u800c\u5185\u5c42\u5faa\u73af\u904d\u5386\u5185\u5c42\u6570\u7ec4\u3002 \u4ee5\u4e0b\u4ee3\u7801\u904d\u5386\u4e8c\u7ef4\u6570\u7ec4\uff1a int[][] arr = {{1, 2, 3}, {4, 5, 6}}; for (int i = 0; i < arr.length; i++) { for (int j = 0; j < arr[i].length; j++) { System.out.println(arr[i][j]); } } \u767b\u5f55\u540e\u590d\u5236 \u4f7f\u7528 foreach \u5faa\u73af\uff1a […]<\/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-65664","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/65664","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=65664"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/65664\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=65664"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=65664"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=65664"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}