{"id":64284,"date":"2025-05-03T12:40:33","date_gmt":"2025-05-03T04:40:33","guid":{"rendered":"https:\/\/fwq.ai\/blog\/64284\/"},"modified":"2025-05-03T12:40:33","modified_gmt":"2025-05-03T04:40:33","slug":"java%e4%b8%ad%e6%95%b0%e7%bb%84%e7%9a%84%e9%95%bf%e5%ba%a6%e6%80%8e%e4%b9%88%e7%9c%8b-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/64284\/","title":{"rendered":"java\u4e2d\u6570\u7ec4\u7684\u957f\u5ea6\u600e\u4e48\u770b"},"content":{"rendered":"

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\"java\u4e2d\u6570\u7ec4\u7684\u957f\u5ea6\u600e\u4e48\u770b\u63d2\u56fe\"<\/p>\n

Java\u4e2d\u6570\u7ec4\u7684\u957f\u5ea6\u67e5\u770b<\/strong><\/p>\n

\u5982\u4f55\u67e5\u770bJava\u4e2d\u6570\u7ec4\u7684\u957f\u5ea6<\/strong><\/p>\n

\u83b7\u53d6Java\u6570\u7ec4\u7684\u957f\u5ea6\u975e\u5e38\u7b80\u5355\uff0c\u4f7f\u7528length\u5c5e\u6027\u5373\u53ef\u3002length\u5c5e\u6027\u662f\u6570\u7ec4\u7c7b\u4e2d\u4e00\u4e2a\u5e38\u91cf\uff0c\u8868\u793a\u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u6570\u91cf\u3002<\/p>\n

\u793a\u4f8b\u4ee3\u7801\uff1a<\/strong><\/p>\n

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

int[] myArray = {1, 2, 3, 4, 5};\n\nint length = myArray.length; \/\/ length\u7684\u503c\u4e3a5<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u5177\u4f53\u6b65\u9aa4\uff1a<\/strong><\/p>\n
    \n
  1.  \u83b7\u53d6\u6570\u7ec4\u5bf9\u8c61\uff1a<\/strong>\u9996\u5148\uff0c\u4f60\u9700\u8981\u83b7\u53d6\u4e00\u4e2a\u6570\u7ec4\u5bf9\u8c61\u3002\u53ef\u4ee5\u662f\u5df2\u77e5\u7684\u6570\u7ec4\u6216\u5728\u4ee3\u7801\u4e2d\u521b\u5efa\u7684\u6570\u7ec4\u3002<\/li>\n
  2.  \u4f7f\u7528length\u5c5e\u6027\uff1a<\/strong>\u63a5\u4e0b\u6765\uff0c\u53ef\u4ee5\u4f7f\u7528length\u5c5e\u6027\u83b7\u53d6\u6570\u7ec4\u7684\u957f\u5ea6\u3002length\u5c5e\u6027\u662f\u6570\u7ec4\u7c7b\u7684\u4e00\u4e2a\u5e38\u91cf\uff0c\u8868\u793a\u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u6570\u91cf\u3002<\/li>\n
  3.  \u8d4b\u503c\u7ed9\u53d8\u91cf\uff1a<\/strong>\u5c06length\u5c5e\u6027\u7684\u503c\u8d4b\u503c\u7ed9\u4e00\u4e2a\u53d8\u91cf\uff0c\u4ee5\u4fbf\u5b58\u50a8\u6570\u7ec4\u7684\u957f\u5ea6\u3002<\/li>\n<\/ol>\n
    \u6ce8\u610f\uff1a<\/strong><\/p>\n
      \n
    • length\u5c5e\u6027\u662f\u53ea\u8bfb\u7684\uff0c\u8fd9\u610f\u5473\u7740\u65e0\u6cd5\u4fee\u6539\u6570\u7ec4\u7684\u957f\u5ea6\u3002<\/li>\n
    • \u6570\u7ec4\u7684\u957f\u5ea6\u5728\u521b\u5efa\u540e\u662f\u56fa\u5b9a\u7684\u3002<\/li>\n
    • \u5982\u679c\u6570\u7ec4\u4e3a\u7a7a\uff0clength\u5c5e\u6027\u7684\u503c\u4e3a0\u3002<\/li>\n<\/ul>\n
      \u4ee5\u4e0a\u5c31\u662fjava\u4e2d\u6570\u7ec4\u7684\u957f\u5ea6\u600e\u4e48\u770b\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8IDCBABY\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
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