{"id":65881,"date":"2025-05-03T11:36:37","date_gmt":"2025-05-03T03:36:37","guid":{"rendered":"https:\/\/fwq.ai\/blog\/65881\/"},"modified":"2025-05-03T11:36:37","modified_gmt":"2025-05-03T03:36:37","slug":"%e6%80%8e%e4%b9%88%e7%9c%8bjava%e6%95%b0%e7%bb%84%e9%95%bf%e5%ba%a6-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/65881\/","title":{"rendered":"\u600e\u4e48\u770bjava\u6570\u7ec4\u957f\u5ea6"},"content":{"rendered":"

\n java \u6570\u7ec4\u957f\u5ea6\u83b7\u53d6\u65b9\u5f0f\uff1a\u4f7f\u7528 length \u5c5e\u6027\uff0c\u5b83\u8868\u793a\u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u6570\u91cf\u3002\u8be6\u7ec6\u8bf4\u660e\uff1alength \u5c5e\u6027\u662f\u6570\u7ec4\u5bf9\u8c61\u7684\u4e00\u4e2a\u5185\u7f6e\u5c5e\u6027\u3002\u8fd4\u56de\u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u6570\u91cf\uff08\u5e38\u6570\uff0c\u4e0d\u80fd\u4fee\u6539\uff09\u3002\u957f\u5ea6\u59cb\u7ec8\u5927\u4e8e\u6216\u7b49\u4e8e 0\uff0c\u7a7a\u6570\u7ec4\u7684\u957f\u5ea6\u4e3a 0\u3002\u591a\u7ef4\u6570\u7ec4\u7684 length \u5c5e\u6027\u8fd4\u56de\u7684\u662f\u7b2c\u4e00\u7ef4\u7684\u957f\u5ea6\u3002\n<\/p><\/blockquote>\n

\"\u600e\u4e48\u770bjava\u6570\u7ec4\u957f\u5ea6\u63d2\u56fe\"<\/p>\n

\u5982\u4f55\u67e5\u770b Java \u6570\u7ec4\u957f\u5ea6<\/strong><\/p>\n

\u83b7\u53d6 Java \u6570\u7ec4\u957f\u5ea6\u7684\u65b9\u6cd5\u5f88\u7b80\u5355\uff0c\u4f7f\u7528 length \u5c5e\u6027\u5373\u53ef\u3002\u8fd9\u4e2a\u5c5e\u6027\u662f\u4e00\u4e2a\u5e38\u6570\uff0c\u8868\u793a\u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u6570\u91cf\u3002<\/p>\n

\u8bed\u6cd5\uff1a<\/strong><\/p>\n

int length = array.length;<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u5176\u4e2d\uff1a<\/p>\n
\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n
    \n
  • length \u662f\u6570\u7ec4\u7684\u957f\u5ea6\u3002<\/li>\n
  • array \u662f\u8981\u83b7\u53d6\u957f\u5ea6\u7684\u6570\u7ec4\u3002<\/li>\n<\/ul>\n
    \u793a\u4f8b\uff1a<\/strong><\/p>\n
    int[] numbers = {1, 2, 3, 4, 5};\nint length = numbers.length; \/\/ length = 5<\/pre>\n
     \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
    \u8be6\u7ec6\u8bf4\u660e\uff1a<\/strong><\/p>\n
      \n
    • length \u5c5e\u6027\u662f\u6570\u7ec4\u5bf9\u8c61\u7684\u4e00\u4e2a\u5185\u7f6e\u5c5e\u6027\uff0c\u5b83\u8fd4\u56de\u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u6570\u91cf\u3002<\/li>\n
    • \u6570\u7ec4\u7684\u957f\u5ea6\u662f\u4e00\u4e2a\u5e38\u6570\uff0c\u8fd9\u610f\u5473\u7740\u5b83\u4e0d\u80fd\u88ab\u4fee\u6539\u3002<\/li>\n
    • \u6570\u7ec4\u7684\u957f\u5ea6\u59cb\u7ec8\u5927\u4e8e\u6216\u7b49\u4e8e 0\u3002<\/li>\n
    • \u5bf9\u4e8e\u7a7a\u6570\u7ec4\uff0clength \u5c5e\u6027\u503c\u4e3a 0\u3002<\/li>\n<\/ul>\n
      \u6ce8\u610f\uff1a<\/strong><\/p>\n
        \n
      • \u5bf9\u4e8e\u591a\u7ef4\u6570\u7ec4\uff0clength \u5c5e\u6027\u8fd4\u56de\u7684\u662f\u7b2c\u4e00\u7ef4\u7684\u957f\u5ea6\u3002<\/li>\n
      • \u4f7f\u7528 length \u5c5e\u6027\u83b7\u53d6\u6570\u7ec4\u957f\u5ea6\u662f\u4e00\u4e2a\u975e\u5e38\u9ad8\u6548\u7684\u64cd\u4f5c\u3002<\/li>\n<\/ul>\n
        \u4ee5\u4e0a\u5c31\u662f\u600e\u4e48\u770bjava\u6570\u7ec4\u957f\u5ea6\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 \u6570\u7ec4\u957f\u5ea6\u83b7\u53d6\u65b9\u5f0f\uff1a\u4f7f\u7528 length \u5c5e\u6027\uff0c\u5b83\u8868\u793a\u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u6570\u91cf\u3002\u8be6\u7ec6\u8bf4\u660e\uff1alength \u5c5e\u6027\u662f\u6570\u7ec4\u5bf9\u8c61\u7684\u4e00\u4e2a\u5185\u7f6e\u5c5e\u6027\u3002\u8fd4\u56de\u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u6570\u91cf\uff08\u5e38\u6570\uff0c\u4e0d\u80fd\u4fee\u6539\uff09\u3002\u957f\u5ea6\u59cb\u7ec8\u5927\u4e8e\u6216\u7b49\u4e8e 0\uff0c\u7a7a\u6570\u7ec4\u7684\u957f\u5ea6\u4e3a 0\u3002\u591a\u7ef4\u6570\u7ec4\u7684 length \u5c5e\u6027\u8fd4\u56de\u7684\u662f\u7b2c\u4e00\u7ef4\u7684\u957f\u5ea6\u3002 \u5982\u4f55\u67e5\u770b Java \u6570\u7ec4\u957f\u5ea6 \u83b7\u53d6 Java \u6570\u7ec4\u957f\u5ea6\u7684\u65b9\u6cd5\u5f88\u7b80\u5355\uff0c\u4f7f\u7528 length \u5c5e\u6027\u5373\u53ef\u3002\u8fd9\u4e2a\u5c5e\u6027\u662f\u4e00\u4e2a\u5e38\u6570\uff0c\u8868\u793a\u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u6570\u91cf\u3002 \u8bed\u6cd5\uff1a int length = array.length; \u767b\u5f55\u540e\u590d\u5236 \u5176\u4e2d\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b length \u662f\u6570\u7ec4\u7684\u957f\u5ea6\u3002 array \u662f\u8981\u83b7\u53d6\u957f\u5ea6\u7684\u6570\u7ec4\u3002 \u793a\u4f8b\uff1a int[] numbers = {1, 2, 3, 4, 5}; int length = numbers.length; \/\/ length = 5 \u767b\u5f55\u540e\u590d\u5236 \u8be6\u7ec6\u8bf4\u660e\uff1a length \u5c5e\u6027\u662f\u6570\u7ec4\u5bf9\u8c61\u7684\u4e00\u4e2a\u5185\u7f6e\u5c5e\u6027\uff0c\u5b83\u8fd4\u56de\u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u6570\u91cf\u3002 \u6570\u7ec4\u7684\u957f\u5ea6\u662f\u4e00\u4e2a\u5e38\u6570\uff0c\u8fd9\u610f\u5473\u7740\u5b83\u4e0d\u80fd\u88ab\u4fee\u6539\u3002 \u6570\u7ec4\u7684\u957f\u5ea6\u59cb\u7ec8\u5927\u4e8e\u6216\u7b49\u4e8e 0\u3002 \u5bf9\u4e8e\u7a7a\u6570\u7ec4\uff0clength \u5c5e\u6027\u503c\u4e3a […]<\/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-65881","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/65881","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=65881"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/65881\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=65881"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=65881"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=65881"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}