{"id":38668,"date":"2024-11-26T09:44:11","date_gmt":"2024-11-26T01:44:11","guid":{"rendered":"https:\/\/fwq.ai\/blog\/38668\/"},"modified":"2024-11-26T09:44:11","modified_gmt":"2024-11-26T01:44:11","slug":"java%e7%b1%bb%e7%9a%84%e4%b8%ad%e7%9a%84%e6%95%b0%e7%bb%84%e6%80%8e%e4%b9%88%e7%94%a8","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/38668\/","title":{"rendered":"java\u7c7b\u7684\u4e2d\u7684\u6570\u7ec4\u600e\u4e48\u7528"},"content":{"rendered":"

\n java \u4e2d\u7684\u6570\u7ec4\u7528\u4e8e\u5b58\u50a8\u76f8\u540c\u6570\u636e\u7c7b\u578b\u7684\u591a\u4e2a\u5143\u7d20\uff0c\u53ef\u901a\u8fc7\u4ee5\u4e0b\u6b65\u9aa4\u4f7f\u7528\uff1a\u58f0\u660e\u6570\u7ec4\uff1a\u4f7f\u7528 \u6570\u636e\u7c7b\u578b[] \u6570\u7ec4\u540d \u8bed\u6cd5\u3002\u521d\u59cb\u5316\u6570\u7ec4\uff1a\u4f7f\u7528 new \u5173\u952e\u5b57\u548c\u65b9\u62ec\u53f7\u6307\u5b9a\u5927\u5c0f\u3002\u8bbf\u95ee\u5143\u7d20\uff1a\u4f7f\u7528\u65b9\u62ec\u53f7\u548c\u7d22\u5f15\uff08\u4ece 0 \u5f00\u59cb\uff09\u3002\u904d\u5386\u6570\u7ec4\uff1a\u4f7f\u7528 for \u6216 foreach \u5faa\u73af\u3002\n<\/p><\/blockquote>\n

\"java\u7c7b\u7684\u4e2d\u7684\u6570\u7ec4\u600e\u4e48\u7528\u63d2\u56fe\"<\/p>\n

Java \u7c7b\u4e2d\u7684\u6570\u7ec4<\/strong><\/p>\n

\u5982\u4f55\u4f7f\u7528\u6570\u7ec4\uff1f<\/strong><\/p>\n

Java \u4e2d\u7684\u6570\u7ec4\u662f\u4e00\u79cd\u6570\u636e\u7ed3\u6784\uff0c\u7528\u4e8e\u5b58\u50a8\u76f8\u540c\u6570\u636e\u7c7b\u578b\u7684\u591a\u4e2a\u5143\u7d20\u3002\u8981\u4f7f\u7528\u6570\u7ec4\uff0c\u53ef\u4ee5\u6309\u7167\u4ee5\u4e0b\u6b65\u9aa4\u64cd\u4f5c\uff1a<\/p>\n

    \n
  1. \u58f0\u660e\u6570\u7ec4\uff1a<\/strong>\u4f7f\u7528 \u6570\u636e\u7c7b\u578b[] \u6570\u7ec4\u540d; \u8bed\u6cd5\u58f0\u660e\u4e00\u4e2a\u6570\u7ec4\uff0c\u5176\u4e2d \u6570\u636e\u7c7b\u578b \u662f\u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u7c7b\u578b\uff0c\u6570\u7ec4\u540d \u662f\u6570\u7ec4\u7684\u540d\u79f0\u3002\u4f8b\u5982\uff1aint[] numbers;<\/li>\n
  2. \u521d\u59cb\u5316\u6570\u7ec4\uff1a<\/strong>\u4f7f\u7528 new \u5173\u952e\u5b57\u548c\u65b9\u62ec\u53f7\u521d\u59cb\u5316\u6570\u7ec4\uff0c\u6307\u5b9a\u6570\u7ec4\u7684\u5927\u5c0f\u3002\u4f8b\u5982\uff1anumbers = new int[5];<\/li>\n
  3. \u8bbf\u95ee\u5143\u7d20\uff1a<\/strong>\u4f7f\u7528\u65b9\u62ec\u53f7\u8bbf\u95ee\u6570\u7ec4\u4e2d\u7684\u7279\u5b9a\u5143\u7d20\u3002\u5143\u7d20\u7684\u7d22\u5f15\u4ece 0 \u5f00\u59cb\u3002\u4f8b\u5982\uff1anumbers[0]<\/li>\n
  4. \u904d\u5386\u6570\u7ec4\uff1a<\/strong>\u53ef\u4ee5\u4f7f\u7528 for \u6216 foreach \u5faa\u73af\u904d\u5386\u6570\u7ec4\u4e2d\u7684\u6240\u6709\u5143\u7d20\u3002\u4f8b\u5982\uff1a<\/li>\n<\/ol>\n
    for (int num : numbers) {\n   \/\/ \u5904\u7406 num\n}<\/pre>\n
     \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
    \u6570\u7ec4\u7684\u7279\u6027<\/strong><\/p>\n
    \u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n
      \n
    • \u6570\u7ec4\u662f\u56fa\u5b9a\u5927\u5c0f\u7684\uff0c\u8fd9\u610f\u5473\u7740\u4e00\u65e6\u521d\u59cb\u5316\u6570\u7ec4\uff0c\u5c31\u4e0d\u80fd\u66f4\u6539\u5176\u5927\u5c0f\u3002<\/li>\n
    • \u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u59cb\u7ec8\u6309\u987a\u5e8f\u5b58\u50a8\u3002<\/li>\n
    • \u6570\u7ec4\u53ef\u4ee5\u662f\u591a\u7ef4\u7684\uff0c\u5373\u6570\u7ec4\u53ef\u4ee5\u5305\u542b\u5176\u4ed6\u6570\u7ec4\u3002<\/li>\n
    • \u6570\u7ec4\u662f\u5f15\u7528\u7c7b\u578b\uff0c\u56e0\u6b64\u5c06\u6570\u7ec4\u53d8\u91cf\u8d4b\u503c\u7ed9\u53e6\u4e00\u4e2a\u53d8\u91cf\u65f6\uff0c\u4f1a\u521b\u5efa\u4e00\u4e2a\u5bf9\u540c\u4e00\u6570\u7ec4\u7684\u5f15\u7528\u3002<\/li>\n<\/ul>\n
      \u793a\u4f8b<\/strong><\/p>\n
      \/\/ \u58f0\u660e\u4e00\u4e2a\u5305\u542b 5 \u4e2a int \u5143\u7d20\u7684\u6570\u7ec4\nint[] numbers = new int[5];\n\n\/\/ \u521d\u59cb\u5316\u6570\u7ec4\nnumbers[0] = 1;\nnumbers[1] = 2;\nnumbers[2] = 3;\nnumbers[3] = 4;\nnumbers[4] = 5;\n\n\/\/ \u6253\u5370\u6570\u7ec4\nfor (int num : numbers) {\n   System.out.println(num);\n}<\/pre>\n
       \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
      \u8f93\u51fa\uff1a<\/p>\n
      1\n2\n3\n4\n5<\/pre>\n
       \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
      \u4ee5\u4e0a\u5c31\u662fjava\u7c7b\u7684\u4e2d\u7684\u6570\u7ec4\u600e\u4e48\u7528\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":"
      java \u4e2d\u7684\u6570\u7ec4\u7528\u4e8e\u5b58\u50a8\u76f8\u540c\u6570\u636e\u7c7b\u578b\u7684\u591a\u4e2a\u5143\u7d20\uff0c\u53ef\u901a\u8fc7\u4ee5\u4e0b\u6b65\u9aa4\u4f7f\u7528\uff1a\u58f0\u660e\u6570\u7ec4\uff1a\u4f7f\u7528 \u6570\u636e\u7c7b\u578b[] \u6570\u7ec4\u540d \u8bed\u6cd5\u3002\u521d\u59cb\u5316\u6570\u7ec4\uff1a\u4f7f\u7528 new \u5173\u952e\u5b57\u548c\u65b9\u62ec\u53f7\u6307\u5b9a\u5927\u5c0f\u3002\u8bbf\u95ee\u5143\u7d20\uff1a\u4f7f\u7528\u65b9\u62ec\u53f7\u548c\u7d22\u5f15\uff08\u4ece 0 \u5f00\u59cb\uff09\u3002\u904d\u5386\u6570\u7ec4\uff1a\u4f7f\u7528 for \u6216 foreach \u5faa\u73af\u3002 Java \u7c7b\u4e2d\u7684\u6570\u7ec4 \u5982\u4f55\u4f7f\u7528\u6570\u7ec4\uff1f Java \u4e2d\u7684\u6570\u7ec4\u662f\u4e00\u79cd\u6570\u636e\u7ed3\u6784\uff0c\u7528\u4e8e\u5b58\u50a8\u76f8\u540c\u6570\u636e\u7c7b\u578b\u7684\u591a\u4e2a\u5143\u7d20\u3002\u8981\u4f7f\u7528\u6570\u7ec4\uff0c\u53ef\u4ee5\u6309\u7167\u4ee5\u4e0b\u6b65\u9aa4\u64cd\u4f5c\uff1a \u58f0\u660e\u6570\u7ec4\uff1a\u4f7f\u7528 \u6570\u636e\u7c7b\u578b[] \u6570\u7ec4\u540d; \u8bed\u6cd5\u58f0\u660e\u4e00\u4e2a\u6570\u7ec4\uff0c\u5176\u4e2d \u6570\u636e\u7c7b\u578b \u662f\u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u7c7b\u578b\uff0c\u6570\u7ec4\u540d \u662f\u6570\u7ec4\u7684\u540d\u79f0\u3002\u4f8b\u5982\uff1aint[] numbers; \u521d\u59cb\u5316\u6570\u7ec4\uff1a\u4f7f\u7528 new \u5173\u952e\u5b57\u548c\u65b9\u62ec\u53f7\u521d\u59cb\u5316\u6570\u7ec4\uff0c\u6307\u5b9a\u6570\u7ec4\u7684\u5927\u5c0f\u3002\u4f8b\u5982\uff1anumbers = new int[5]; \u8bbf\u95ee\u5143\u7d20\uff1a\u4f7f\u7528\u65b9\u62ec\u53f7\u8bbf\u95ee\u6570\u7ec4\u4e2d\u7684\u7279\u5b9a\u5143\u7d20\u3002\u5143\u7d20\u7684\u7d22\u5f15\u4ece 0 \u5f00\u59cb\u3002\u4f8b\u5982\uff1anumbers[0] \u904d\u5386\u6570\u7ec4\uff1a\u53ef\u4ee5\u4f7f\u7528 for \u6216 foreach \u5faa\u73af\u904d\u5386\u6570\u7ec4\u4e2d\u7684\u6240\u6709\u5143\u7d20\u3002\u4f8b\u5982\uff1a for (int num : numbers) { \/\/ \u5904\u7406 num } \u767b\u5f55\u540e\u590d\u5236 \u6570\u7ec4\u7684\u7279\u6027 \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b \u6570\u7ec4\u662f\u56fa\u5b9a\u5927\u5c0f\u7684\uff0c\u8fd9\u610f\u5473\u7740\u4e00\u65e6\u521d\u59cb\u5316\u6570\u7ec4\uff0c\u5c31\u4e0d\u80fd\u66f4\u6539\u5176\u5927\u5c0f\u3002 \u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u59cb\u7ec8\u6309\u987a\u5e8f\u5b58\u50a8\u3002 […]<\/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-38668","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/38668","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=38668"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/38668\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=38668"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=38668"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=38668"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}