{"id":38705,"date":"2024-11-26T16:46:04","date_gmt":"2024-11-26T08:46:04","guid":{"rendered":"https:\/\/fwq.ai\/blog\/38705\/"},"modified":"2024-11-26T16:46:04","modified_gmt":"2024-11-26T08:46:04","slug":"java%e4%b8%80%e7%bb%b4%e6%95%b0%e7%bb%84%e9%95%bf%e5%ba%a6%e6%80%8e%e4%b9%88%e8%a1%a8%e7%a4%ba","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/38705\/","title":{"rendered":"java\u4e00\u7ef4\u6570\u7ec4\u957f\u5ea6\u600e\u4e48\u8868\u793a"},"content":{"rendered":"

\n java\u4e00\u7ef4\u6570\u7ec4\u7684\u957f\u5ea6\u53ef\u4ee5\u901a\u8fc7\u5176length\u5c5e\u6027\u8868\u793a\u3002\u8bed\u6cd5\uff1aarray.length\u5176\u4e2darray\u662f\u8981\u83b7\u53d6\u5176\u957f\u5ea6\u7684\u4e00\u7ef4\u6570\u7ec4\u3002\u8be5\u5c5e\u6027\u662f\u53ea\u8bfb\u7684\u6574\u6570\uff0c\u8868\u793a\u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u6570\u91cf\uff0c\u4e14\u59cb\u7ec8\u5927\u4e8e\u6216\u7b49\u4e8e0\u3002\u82e5\u6570\u7ec4\u4e3a\u7a7a\uff0c\u957f\u5ea6\u4e3a0\u3002\n<\/p><\/blockquote>\n

\"java\u4e00\u7ef4\u6570\u7ec4\u957f\u5ea6\u600e\u4e48\u8868\u793a\u63d2\u56fe\"<\/p>\n

Java \u4e00\u7ef4\u6570\u7ec4\u957f\u5ea6\u7684\u8868\u793a<\/strong><\/p>\n

Java \u4e2d\u4e00\u7ef4\u6570\u7ec4\u7684\u957f\u5ea6\u53ef\u4ee5\u901a\u8fc7\u5176 length \u5c5e\u6027\u6765\u8868\u793a\u3002<\/p>\n

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

array.length<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u5176\u4e2d array \u662f\u8981\u83b7\u53d6\u5176\u957f\u5ea6\u7684\u4e00\u7ef4\u6570\u7ec4\u3002<\/p>\n
\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n
\u793a\u4f8b<\/strong><\/p>\n
int[] myArray = {1,2,3,4,5};\nint length = myArray.length; \/\/ length = 5<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0cmyArray \u662f\u4e00\u4e2a\u5305\u542b\u4e94\u4e2a\u5143\u7d20\u7684\u4e00\u7ef4\u6570\u7ec4\u3002\u901a\u8fc7\u8bbf\u95ee\u5176 length \u5c5e\u6027\uff0c\u6211\u4eec\u83b7\u5f97\u4e86\u6570\u7ec4\u7684\u957f\u5ea6\uff0c\u5373 5\u3002<\/p>\n
\u6ce8\u610f\u4e8b\u9879<\/strong><\/p>\n
    \n
  • length \u5c5e\u6027\u662f\u6570\u7ec4\u7684\u53ea\u8bfb\u5c5e\u6027\uff0c\u8fd9\u610f\u5473\u7740\u4e0d\u80fd\u66f4\u6539\u6570\u7ec4\u7684\u957f\u5ea6\u3002<\/li>\n
  • \u4e00\u7ef4\u6570\u7ec4\u7684\u957f\u5ea6\u662f\u4e00\u4e2a\u6574\u6570\uff0c\u8868\u793a\u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u6570\u91cf\u3002<\/li>\n
  • \u6570\u7ec4\u7684\u957f\u5ea6\u59cb\u7ec8\u5927\u4e8e\u6216\u7b49\u4e8e 0\u3002\u5982\u679c\u6570\u7ec4\u4e0d\u5305\u542b\u4efb\u4f55\u5143\u7d20\uff0c\u5176\u957f\u5ea6\u4e3a 0\u3002<\/li>\n<\/ul>\n
    \u4ee5\u4e0a\u5c31\u662fjava\u4e00\u7ef4\u6570\u7ec4\u957f\u5ea6\u600e\u4e48\u8868\u793a\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\u4e00\u7ef4\u6570\u7ec4\u7684\u957f\u5ea6\u53ef\u4ee5\u901a\u8fc7\u5176length\u5c5e\u6027\u8868\u793a\u3002\u8bed\u6cd5\uff1aarray.length\u5176\u4e2darray\u662f\u8981\u83b7\u53d6\u5176\u957f\u5ea6\u7684\u4e00\u7ef4\u6570\u7ec4\u3002\u8be5\u5c5e\u6027\u662f\u53ea\u8bfb\u7684\u6574\u6570\uff0c\u8868\u793a\u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u6570\u91cf\uff0c\u4e14\u59cb\u7ec8\u5927\u4e8e\u6216\u7b49\u4e8e0\u3002\u82e5\u6570\u7ec4\u4e3a\u7a7a\uff0c\u957f\u5ea6\u4e3a0\u3002 Java \u4e00\u7ef4\u6570\u7ec4\u957f\u5ea6\u7684\u8868\u793a Java \u4e2d\u4e00\u7ef4\u6570\u7ec4\u7684\u957f\u5ea6\u53ef\u4ee5\u901a\u8fc7\u5176 length \u5c5e\u6027\u6765\u8868\u793a\u3002 \u8bed\u6cd5 array.length \u767b\u5f55\u540e\u590d\u5236 \u5176\u4e2d array \u662f\u8981\u83b7\u53d6\u5176\u957f\u5ea6\u7684\u4e00\u7ef4\u6570\u7ec4\u3002 \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b \u793a\u4f8b int[] myArray = {1,2,3,4,5}; int length = myArray.length; \/\/ length = 5 \u767b\u5f55\u540e\u590d\u5236 \u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0cmyArray \u662f\u4e00\u4e2a\u5305\u542b\u4e94\u4e2a\u5143\u7d20\u7684\u4e00\u7ef4\u6570\u7ec4\u3002\u901a\u8fc7\u8bbf\u95ee\u5176 length \u5c5e\u6027\uff0c\u6211\u4eec\u83b7\u5f97\u4e86\u6570\u7ec4\u7684\u957f\u5ea6\uff0c\u5373 5\u3002 \u6ce8\u610f\u4e8b\u9879 length \u5c5e\u6027\u662f\u6570\u7ec4\u7684\u53ea\u8bfb\u5c5e\u6027\uff0c\u8fd9\u610f\u5473\u7740\u4e0d\u80fd\u66f4\u6539\u6570\u7ec4\u7684\u957f\u5ea6\u3002 \u4e00\u7ef4\u6570\u7ec4\u7684\u957f\u5ea6\u662f\u4e00\u4e2a\u6574\u6570\uff0c\u8868\u793a\u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u6570\u91cf\u3002 \u6570\u7ec4\u7684\u957f\u5ea6\u59cb\u7ec8\u5927\u4e8e\u6216\u7b49\u4e8e 0\u3002\u5982\u679c\u6570\u7ec4\u4e0d\u5305\u542b\u4efb\u4f55\u5143\u7d20\uff0c\u5176\u957f\u5ea6\u4e3a 0\u3002 \u4ee5\u4e0a\u5c31\u662fjava\u4e00\u7ef4\u6570\u7ec4\u957f\u5ea6\u600e\u4e48\u8868\u793a\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-38705","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/38705","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=38705"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/38705\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=38705"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=38705"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=38705"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}