{"id":38038,"date":"2024-11-26T12:25:20","date_gmt":"2024-11-26T04:25:20","guid":{"rendered":"https:\/\/fwq.ai\/blog\/38038\/"},"modified":"2024-11-26T12:25:20","modified_gmt":"2024-11-26T04:25:20","slug":"java%e6%95%b0%e7%bb%84%e7%9a%84%e5%ae%9e%e9%99%85%e9%95%bf%e5%ba%a6%e6%80%8e%e4%b9%88%e6%b1%82","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/38038\/","title":{"rendered":"java\u6570\u7ec4\u7684\u5b9e\u9645\u957f\u5ea6\u600e\u4e48\u6c42"},"content":{"rendered":"

\n java \u6570\u7ec4\u7684\u5b9e\u9645\u957f\u5ea6\u662f\u6307\u6570\u7ec4\u4e2d\u5b9e\u9645\u5b58\u50a8\u5143\u7d20\u7684\u4e2a\u6570\u3002\u83b7\u53d6\u5b9e\u9645\u957f\u5ea6\u7684\u65b9\u6cd5\u662f\u4f7f\u7528 length \u5c5e\u6027\uff1a\u521b\u5efa\u4e00\u4e2a\u6570\u7ec4\uff0c\u4f8b\u5982 int[] myarray = {1, 2, 3, 4, 5}\u4f7f\u7528 myarray.length \u83b7\u53d6\u6570\u7ec4\u957f\u5ea6\uff0c\u4f8b\u5982 int actuallength = myarray.length;\u5b9e\u9645\u957f\u5ea6\u5c06\u4fdd\u5b58\u5728 actuallength \u53d8\u91cf\u4e2d\uff0c\u4f8b\u5982 actuallength = 5\n<\/p><\/blockquote>\n

\"java\u6570\u7ec4\u7684\u5b9e\u9645\u957f\u5ea6\u600e\u4e48\u6c42\u63d2\u56fe\"<\/p>\n

Java \u6570\u7ec4\u7684\u5b9e\u9645\u957f\u5ea6<\/strong><\/p>\n

\u4e00\u4e2a Java \u6570\u7ec4\u7684\u5b9e\u9645\u957f\u5ea6\u662f\u6307\u6570\u7ec4\u4e2d\u5b9e\u9645\u5b58\u50a8\u5143\u7d20\u7684\u4e2a\u6570\uff0c\u5b83\u53ef\u80fd\u4e0e\u6570\u7ec4\u58f0\u660e\u65f6\u7684\u957f\u5ea6\u4e0d\u540c\u3002<\/p>\n

\u5982\u4f55\u83b7\u53d6\u6570\u7ec4\u7684\u5b9e\u9645\u957f\u5ea6<\/strong><\/p>\n

\u83b7\u53d6 Java \u6570\u7ec4\u5b9e\u9645\u957f\u5ea6\u7684\u6807\u51c6\u65b9\u6cd5\u662f\u4f7f\u7528 length \u5c5e\u6027\uff1a<\/p>\n

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

int actualLength = myArray.length;<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
length \u5c5e\u6027\u8fd4\u56de\u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u5b9e\u9645\u6570\u91cf\u3002<\/p>\n
\u793a\u4f8b<\/strong><\/p>\n
\u5047\u8bbe\u6211\u4eec\u6709\u4e00\u4e2a\u540d\u4e3a myArray \u7684\u6574\u6570\u6570\u7ec4\uff0c\u5176\u4e2d\u5305\u542b 5 \u4e2a\u5143\u7d20\uff1a<\/p>\n
int[] myArray = {1, 2, 3, 4, 5};<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u8981\u83b7\u53d6 myArray \u7684\u5b9e\u9645\u957f\u5ea6\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u7801\uff1a<\/p>\n
int actualLength = myArray.length;\nSystem.out.println(actualLength); \/\/ \u8f93\u51fa\uff1a5<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u5176\u4ed6\u6ce8\u610f\u4e8b\u9879<\/strong><\/p>\n
    \n
  • \u6570\u7ec4\u7684\u5b9e\u9645\u957f\u5ea6\u53ef\u4ee5\u5c0f\u4e8e\u6216\u7b49\u4e8e\u5176\u58f0\u660e\u957f\u5ea6\u3002<\/li>\n
  • \u6570\u7ec4\u7684\u957f\u5ea6\u4e0d\u53ef\u8c03\u6574\u3002\u8981\u6539\u53d8\u4e00\u4e2a\u6570\u7ec4\u7684\u957f\u5ea6\uff0c\u9700\u8981\u521b\u5efa\u4e00\u4e2a\u65b0\u6570\u7ec4\u5e76\u5c06\u5143\u7d20\u4ece\u65e7\u6570\u7ec4\u590d\u5236\u8fc7\u53bb\u3002<\/li>\n
  • length \u5c5e\u6027\u662f\u6570\u7ec4\u7684\u4e00\u4e2a\u53ea\u8bfb\u5c5e\u6027\u3002<\/li>\n<\/ul>\n
    \u4ee5\u4e0a\u5c31\u662fjava\u6570\u7ec4\u7684\u5b9e\u9645\u957f\u5ea6\u600e\u4e48\u6c42\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 \u6570\u7ec4\u7684\u5b9e\u9645\u957f\u5ea6\u662f\u6307\u6570\u7ec4\u4e2d\u5b9e\u9645\u5b58\u50a8\u5143\u7d20\u7684\u4e2a\u6570\u3002\u83b7\u53d6\u5b9e\u9645\u957f\u5ea6\u7684\u65b9\u6cd5\u662f\u4f7f\u7528 length \u5c5e\u6027\uff1a\u521b\u5efa\u4e00\u4e2a\u6570\u7ec4\uff0c\u4f8b\u5982 int[] myarray = {1, 2, 3, 4, 5}\u4f7f\u7528 myarray.length \u83b7\u53d6\u6570\u7ec4\u957f\u5ea6\uff0c\u4f8b\u5982 int actuallength = myarray.length;\u5b9e\u9645\u957f\u5ea6\u5c06\u4fdd\u5b58\u5728 actuallength \u53d8\u91cf\u4e2d\uff0c\u4f8b\u5982 actuallength = 5 Java \u6570\u7ec4\u7684\u5b9e\u9645\u957f\u5ea6 \u4e00\u4e2a Java \u6570\u7ec4\u7684\u5b9e\u9645\u957f\u5ea6\u662f\u6307\u6570\u7ec4\u4e2d\u5b9e\u9645\u5b58\u50a8\u5143\u7d20\u7684\u4e2a\u6570\uff0c\u5b83\u53ef\u80fd\u4e0e\u6570\u7ec4\u58f0\u660e\u65f6\u7684\u957f\u5ea6\u4e0d\u540c\u3002 \u5982\u4f55\u83b7\u53d6\u6570\u7ec4\u7684\u5b9e\u9645\u957f\u5ea6 \u83b7\u53d6 Java \u6570\u7ec4\u5b9e\u9645\u957f\u5ea6\u7684\u6807\u51c6\u65b9\u6cd5\u662f\u4f7f\u7528 length \u5c5e\u6027\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b int actualLength = myArray.length; \u767b\u5f55\u540e\u590d\u5236 length \u5c5e\u6027\u8fd4\u56de\u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u5b9e\u9645\u6570\u91cf\u3002 \u793a\u4f8b \u5047\u8bbe\u6211\u4eec\u6709\u4e00\u4e2a\u540d\u4e3a myArray \u7684\u6574\u6570\u6570\u7ec4\uff0c\u5176\u4e2d\u5305\u542b 5 \u4e2a\u5143\u7d20\uff1a int[] myArray = {1, 2, 3, 4, […]<\/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-38038","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/38038","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=38038"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/38038\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=38038"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=38038"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=38038"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}