{"id":37427,"date":"2024-11-26T08:29:52","date_gmt":"2024-11-26T00:29:52","guid":{"rendered":"https:\/\/fwq.ai\/blog\/37427\/"},"modified":"2024-11-26T08:29:52","modified_gmt":"2024-11-26T00:29:52","slug":"java%e6%80%8e%e4%b9%88%e5%88%a4%e6%96%ad%e6%95%b0%e7%bb%84%e7%9a%84%e9%95%bf%e5%ba%a6","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/37427\/","title":{"rendered":"java\u600e\u4e48\u5224\u65ad\u6570\u7ec4\u7684\u957f\u5ea6"},"content":{"rendered":"

\n \u83b7\u53d6 java \u6570\u7ec4\u7684\u957f\u5ea6\u53ef\u4ee5\u901a\u8fc7\u8bbf\u95ee\u5176 length \u5c5e\u6027\u3002\u6570\u7ec4\u957f\u5ea6\u8868\u793a\u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u6570\u91cf\u3002\u4f7f\u7528 length \u5c5e\u6027\u53ef\u4ee5\u786e\u5b9a\u6570\u7ec4\u5927\u5c0f\uff0c\u7528\u4e8e\u904d\u5386\u3001\u6bd4\u8f83\u548c\u52a8\u6001\u5206\u914d\u7a7a\u95f4\u3002\n<\/p><\/blockquote>\n

\"java\u600e\u4e48\u5224\u65ad\u6570\u7ec4\u7684\u957f\u5ea6\u63d2\u56fe\"<\/p>\n

\u5982\u4f55\u5224\u65ad Java \u6570\u7ec4\u7684\u957f\u5ea6\uff1f<\/strong><\/p>\n

\u5728 Java \u4e2d\uff0c\u6570\u7ec4\u5b58\u50a8\u5728\u8fde\u7eed\u7684\u5185\u5b58\u7a7a\u95f4\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528 length \u5c5e\u6027\u6765\u83b7\u53d6\u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u6570\u91cf\uff0c\u5373\u6570\u7ec4\u7684\u957f\u5ea6\u3002<\/p>\n

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

int arrayLength = 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
  • array \u662f\u8981\u8ba1\u7b97\u957f\u5ea6\u7684\u6570\u7ec4\u3002<\/li>\n
  • arrayLength \u662f\u5b58\u50a8\u6570\u7ec4\u957f\u5ea6\u7684\u53d8\u91cf\u3002<\/li>\n<\/ul>\n
    \u793a\u4f8b\uff1a<\/strong><\/p>\n
    int[] numbers = {1, 2, 3, 4, 5};\nint arrayLength = numbers.length;\nSystem.out.println(arrayLength); \/\/ \u8f93\u51fa\uff1a5<\/pre>\n
     \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
    \u8f93\u51fa\u7ed3\u679c\u4e3a 5\uff0c\u56e0\u4e3a\u6570\u7ec4 numbers \u5177\u6709 5 \u4e2a\u5143\u7d20\u3002<\/p>\n
    \u4f7f\u7528\u573a\u666f\uff1a<\/strong><\/p>\n
      \n
    • \u904d\u5386\u6570\u7ec4\uff1a\u5728\u904d\u5386\u6570\u7ec4\u65f6\uff0c\u9700\u8981\u77e5\u9053\u6570\u7ec4\u7684\u957f\u5ea6\uff0c\u4ee5\u4fbf\u8bbf\u95ee\u6240\u6709\u5143\u7d20\u3002<\/li>\n
    • \u6bd4\u8f83\u6570\u7ec4\uff1a\u6bd4\u8f83\u4e24\u4e2a\u6570\u7ec4\u65f6\uff0c\u9700\u8981\u786e\u4fdd\u5b83\u4eec\u5177\u6709\u76f8\u540c\u7684\u957f\u5ea6\u3002<\/li>\n
    • \u5206\u914d\u6570\u7ec4\u7a7a\u95f4\uff1a\u5728\u52a8\u6001\u5206\u914d\u6570\u7ec4\u7a7a\u95f4\u65f6\uff0c\u9700\u8981\u6307\u5b9a\u6570\u7ec4\u7684\u957f\u5ea6\u3002<\/li>\n<\/ul>\n
      \u4ee5\u4e0a\u5c31\u662fjava\u600e\u4e48\u5224\u65ad\u6570\u7ec4\u7684\u957f\u5ea6\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":"
      \u83b7\u53d6 java \u6570\u7ec4\u7684\u957f\u5ea6\u53ef\u4ee5\u901a\u8fc7\u8bbf\u95ee\u5176 length \u5c5e\u6027\u3002\u6570\u7ec4\u957f\u5ea6\u8868\u793a\u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u6570\u91cf\u3002\u4f7f\u7528 length \u5c5e\u6027\u53ef\u4ee5\u786e\u5b9a\u6570\u7ec4\u5927\u5c0f\uff0c\u7528\u4e8e\u904d\u5386\u3001\u6bd4\u8f83\u548c\u52a8\u6001\u5206\u914d\u7a7a\u95f4\u3002 \u5982\u4f55\u5224\u65ad Java \u6570\u7ec4\u7684\u957f\u5ea6\uff1f \u5728 Java \u4e2d\uff0c\u6570\u7ec4\u5b58\u50a8\u5728\u8fde\u7eed\u7684\u5185\u5b58\u7a7a\u95f4\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528 length \u5c5e\u6027\u6765\u83b7\u53d6\u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u6570\u91cf\uff0c\u5373\u6570\u7ec4\u7684\u957f\u5ea6\u3002 \u8bed\u6cd5\uff1a int arrayLength = array.length; \u767b\u5f55\u540e\u590d\u5236 \u5176\u4e2d\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b array \u662f\u8981\u8ba1\u7b97\u957f\u5ea6\u7684\u6570\u7ec4\u3002 arrayLength \u662f\u5b58\u50a8\u6570\u7ec4\u957f\u5ea6\u7684\u53d8\u91cf\u3002 \u793a\u4f8b\uff1a int[] numbers = {1, 2, 3, 4, 5}; int arrayLength = numbers.length; System.out.println(arrayLength); \/\/ \u8f93\u51fa\uff1a5 \u767b\u5f55\u540e\u590d\u5236 \u8f93\u51fa\u7ed3\u679c\u4e3a 5\uff0c\u56e0\u4e3a\u6570\u7ec4 numbers \u5177\u6709 5 \u4e2a\u5143\u7d20\u3002 \u4f7f\u7528\u573a\u666f\uff1a \u904d\u5386\u6570\u7ec4\uff1a\u5728\u904d\u5386\u6570\u7ec4\u65f6\uff0c\u9700\u8981\u77e5\u9053\u6570\u7ec4\u7684\u957f\u5ea6\uff0c\u4ee5\u4fbf\u8bbf\u95ee\u6240\u6709\u5143\u7d20\u3002 \u6bd4\u8f83\u6570\u7ec4\uff1a\u6bd4\u8f83\u4e24\u4e2a\u6570\u7ec4\u65f6\uff0c\u9700\u8981\u786e\u4fdd\u5b83\u4eec\u5177\u6709\u76f8\u540c\u7684\u957f\u5ea6\u3002 \u5206\u914d\u6570\u7ec4\u7a7a\u95f4\uff1a\u5728\u52a8\u6001\u5206\u914d\u6570\u7ec4\u7a7a\u95f4\u65f6\uff0c\u9700\u8981\u6307\u5b9a\u6570\u7ec4\u7684\u957f\u5ea6\u3002 \u4ee5\u4e0a\u5c31\u662fjava\u600e\u4e48\u5224\u65ad\u6570\u7ec4\u7684\u957f\u5ea6\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/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-37427","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/37427","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=37427"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/37427\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=37427"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=37427"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=37427"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}