{"id":38156,"date":"2024-11-26T09:04:43","date_gmt":"2024-11-26T01:04:43","guid":{"rendered":"https:\/\/fwq.ai\/blog\/38156\/"},"modified":"2024-11-26T09:04:43","modified_gmt":"2024-11-26T01:04:43","slug":"java%e6%80%8e%e4%b9%88%e5%be%97%e5%88%b0%e6%95%b0%e7%bb%84%e5%85%83%e7%b4%a0%e7%9a%84%e4%b8%aa%e6%95%b0","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/38156\/","title":{"rendered":"java\u600e\u4e48\u5f97\u5230\u6570\u7ec4\u5143\u7d20\u7684\u4e2a\u6570"},"content":{"rendered":"

\n java\u4e2d\u83b7\u53d6\u6570\u7ec4\u5143\u7d20\u4e2a\u6570\u7684\u65b9\u6cd5\u6709\u4e24\u79cd\uff1a\u4f7f\u7528length\u5c5e\u6027\uff0c\u76f4\u63a5\u83b7\u5f97\u6570\u7ec4\u5143\u7d20\u7684\u4e2a\u6570\u3002\u4f7f\u7528array.length\u9759\u6001\u65b9\u6cd5\uff0c\u63a5\u6536\u6570\u7ec4\u4f5c\u4e3a\u8f93\u5165\uff0c\u5e76\u8fd4\u56de\u5143\u7d20\u4e2a\u6570\u3002\n<\/p><\/blockquote>\n

\"java\u600e\u4e48\u5f97\u5230\u6570\u7ec4\u5143\u7d20\u7684\u4e2a\u6570\u63d2\u56fe\"<\/p>\n

Java\u4e2d\u83b7\u53d6\u6570\u7ec4\u5143\u7d20\u4e2a\u6570<\/strong><\/p>\n

\u8981\u83b7\u53d6Java\u6570\u7ec4\u5143\u7d20\u7684\u4e2a\u6570\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u65b9\u6cd5\uff1a<\/p>\n

1. length\u5c5e\u6027<\/strong><\/p>\n

length\u5c5e\u6027\u662fJava\u4e2d\u6240\u6709\u6570\u7ec4\u56fa\u6709\u7684\u5c5e\u6027\uff0c\u5b83\u8868\u793a\u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u4e2a\u6570\u3002\u8bed\u6cd5\u5982\u4e0b\uff1a<\/p>\n

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

int length = array.length;<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u793a\u4f8b\uff1a<\/strong><\/p>\n
int[] myArray = {1, 2, 3, 4, 5};\nint arrayLength = myArray.length; \/\/ arrayLength = 5<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
2. Array.length\u9759\u6001\u65b9\u6cd5<\/strong><\/p>\n
Array.length\u662fJava\u4e2d\u4e00\u4e2a\u9759\u6001\u65b9\u6cd5\uff0c\u5b83\u63a5\u6536\u4e00\u4e2a\u6570\u7ec4\u4f5c\u4e3a\u8f93\u5165\uff0c\u5e76\u8fd4\u56de\u5176\u5143\u7d20\u7684\u4e2a\u6570\u3002\u8bed\u6cd5\u5982\u4e0b\uff1a<\/p>\n
int length = Array.getLength(array);<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u793a\u4f8b\uff1a<\/strong><\/p>\n
int[][] myArray = {{1, 2}, {3, 4}, {5, 6}};\nint arrayLength = Array.getLength(myArray); \/\/ arrayLength = 3<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u6ce8\u610f\uff1a<\/p>\n
    \n
  • Java\u6570\u7ec4\u662f\u57fa\u4e8e0\u7684\uff0c\u8fd9\u610f\u5473\u7740\u7b2c\u4e00\u4e2a\u5143\u7d20\u7684\u7d22\u5f15\u4e3a0\u3002<\/li>\n
  • \u8fd9\u4e9b\u65b9\u6cd5\u9002\u7528\u4e8e\u6240\u6709\u57fa\u672c\u7c7b\u578b\u6570\u7ec4\uff08\u5982int[]\u3001double[]\u7b49\uff09\u548c\u5bf9\u8c61\u6570\u7ec4\uff08\u5982String[]\u3001Object[]\u7b49\uff09\u3002<\/li>\n<\/ul>\n
    \u4ee5\u4e0a\u5c31\u662fjava\u600e\u4e48\u5f97\u5230\u6570\u7ec4\u5143\u7d20\u7684\u4e2a\u6570\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\u4e2d\u83b7\u53d6\u6570\u7ec4\u5143\u7d20\u4e2a\u6570\u7684\u65b9\u6cd5\u6709\u4e24\u79cd\uff1a\u4f7f\u7528length\u5c5e\u6027\uff0c\u76f4\u63a5\u83b7\u5f97\u6570\u7ec4\u5143\u7d20\u7684\u4e2a\u6570\u3002\u4f7f\u7528array.length\u9759\u6001\u65b9\u6cd5\uff0c\u63a5\u6536\u6570\u7ec4\u4f5c\u4e3a\u8f93\u5165\uff0c\u5e76\u8fd4\u56de\u5143\u7d20\u4e2a\u6570\u3002 Java\u4e2d\u83b7\u53d6\u6570\u7ec4\u5143\u7d20\u4e2a\u6570 \u8981\u83b7\u53d6Java\u6570\u7ec4\u5143\u7d20\u7684\u4e2a\u6570\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u65b9\u6cd5\uff1a 1. length\u5c5e\u6027 length\u5c5e\u6027\u662fJava\u4e2d\u6240\u6709\u6570\u7ec4\u56fa\u6709\u7684\u5c5e\u6027\uff0c\u5b83\u8868\u793a\u6570\u7ec4\u4e2d\u5143\u7d20\u7684\u4e2a\u6570\u3002\u8bed\u6cd5\u5982\u4e0b\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b int length = array.length; \u767b\u5f55\u540e\u590d\u5236 \u793a\u4f8b\uff1a int[] myArray = {1, 2, 3, 4, 5}; int arrayLength = myArray.length; \/\/ arrayLength = 5 \u767b\u5f55\u540e\u590d\u5236 2. Array.length\u9759\u6001\u65b9\u6cd5 Array.length\u662fJava\u4e2d\u4e00\u4e2a\u9759\u6001\u65b9\u6cd5\uff0c\u5b83\u63a5\u6536\u4e00\u4e2a\u6570\u7ec4\u4f5c\u4e3a\u8f93\u5165\uff0c\u5e76\u8fd4\u56de\u5176\u5143\u7d20\u7684\u4e2a\u6570\u3002\u8bed\u6cd5\u5982\u4e0b\uff1a int length = Array.getLength(array); \u767b\u5f55\u540e\u590d\u5236 \u793a\u4f8b\uff1a int[][] myArray = {{1, 2}, {3, 4}, {5, 6}}; int arrayLength = Array.getLength(myArray); \/\/ arrayLength = […]<\/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-38156","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/38156","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=38156"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/38156\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=38156"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=38156"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=38156"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}