{"id":66954,"date":"2025-05-03T13:39:13","date_gmt":"2025-05-03T05:39:13","guid":{"rendered":"https:\/\/fwq.ai\/blog\/66954\/"},"modified":"2025-05-03T13:39:13","modified_gmt":"2025-05-03T05:39:13","slug":"java%e6%80%8e%e4%b9%88%e5%8f%96%e6%95%b0%e7%bb%84%e7%9a%84%e7%ac%ac%e4%b8%80%e4%b8%aa-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/66954\/","title":{"rendered":"java\u600e\u4e48\u53d6\u6570\u7ec4\u7684\u7b2c\u4e00\u4e2a"},"content":{"rendered":"

\n \u5728 java \u4e2d\u83b7\u53d6\u6570\u7ec4\u7684\u7b2c\u4e00\u4e2a\u5143\u7d20\u6709\u4e24\u79cd\u65b9\u6cd5\uff1a\u4f7f\u7528\u7d22\u5f15\u4e0b\u6807\uff08arr[0]\uff09\u83b7\u53d6\u7d22\u5f15\u4e3a 0 \u7684\u5143\u7d20\u3002\u4f7f\u7528 array.get() \u65b9\u6cd5\uff08array.get(arr, 0)\uff09\u4f20\u5165\u6570\u7ec4\u548c\u7d22\u5f15\u4e3a 0 \u7684\u53c2\u6570\u3002\n<\/p><\/blockquote>\n

\"java\u600e\u4e48\u53d6\u6570\u7ec4\u7684\u7b2c\u4e00\u4e2a\u63d2\u56fe\"<\/p>\n

\u5982\u4f55\u83b7\u53d6 Java \u6570\u7ec4\u7684\u7b2c\u4e00\u4e2a\u5143\u7d20<\/strong><\/p>\n

\u5728 Java \u4e2d\uff0c\u83b7\u53d6\u6570\u7ec4\u7b2c\u4e00\u4e2a\u5143\u7d20\u975e\u5e38\u7b80\u5355\u3002\u4e0b\u9762\u4ecb\u7ecd\u4e24\u79cd\u65b9\u6cd5\uff1a<\/p>\n

1. \u4f7f\u7528\u7d22\u5f15\u4e0b\u6807<\/strong><\/p>\n

\u6700\u5e38\u7528\u7684\u65b9\u6cd5\u662f\u4f7f\u7528\u7d22\u5f15\u4e0b\u6807\u3002Java \u6570\u7ec4\u4ece 0 \u5f00\u59cb\u7d22\u5f15\uff0c\u56e0\u6b64\u7b2c\u4e00\u4e2a\u5143\u7d20\u4f4d\u4e8e\u7d22\u5f15 0 \u5904\u3002<\/p>\n

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

\u4ee5\u4e0b\u4ee3\u7801\u83b7\u53d6\u540d\u4e3a arr \u7684\u6570\u7ec4\u7684\u7b2c\u4e00\u4e2a\u5143\u7d20\uff1a<\/p>\n

int firstElement = arr[0];<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
2. \u4f7f\u7528 Array.get() \u65b9\u6cd5<\/strong><\/p>\n
\u53e6\u4e00\u79cd\u83b7\u53d6\u7b2c\u4e00\u4e2a\u5143\u7d20\u7684\u65b9\u6cd5\u662f\u4f7f\u7528 Array.get() \u65b9\u6cd5\u3002\u8be5\u65b9\u6cd5\u63a5\u53d7\u6570\u7ec4\u548c\u7d22\u5f15\u4f5c\u4e3a\u53c2\u6570\uff0c\u5e76\u8fd4\u56de\u6307\u5b9a\u7d22\u5f15\u5904\u7684\u5143\u7d20\u3002<\/p>\n
\u4ee5\u4e0b\u4ee3\u7801\u83b7\u53d6\u540d\u4e3a arr \u7684\u6570\u7ec4\u7684\u7b2c\u4e00\u4e2a\u5143\u7d20\uff1a<\/p>\n
int firstElement = Array.get(arr, 0);<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u8fd9\u4e24\u79cd\u65b9\u6cd5\u90fd\u8fd4\u56de\u6570\u7ec4\u7684\u7b2c\u4e00\u4e2a\u5143\u7d20\u3002\u9009\u62e9\u54ea\u79cd\u65b9\u6cd5\u53d6\u51b3\u4e8e\u4e2a\u4eba\u504f\u597d\u548c\u4ee3\u7801\u4e0a\u4e0b\u6587\u7684\u5177\u4f53\u8981\u6c42\u3002<\/p>\n
\u4ee5\u4e0a\u5c31\u662fjava\u600e\u4e48\u53d6\u6570\u7ec4\u7684\u7b2c\u4e00\u4e2a\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8IDCBABY\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
\u5728 java \u4e2d\u83b7\u53d6\u6570\u7ec4\u7684\u7b2c\u4e00\u4e2a\u5143\u7d20\u6709\u4e24\u79cd\u65b9\u6cd5\uff1a\u4f7f\u7528\u7d22\u5f15\u4e0b\u6807\uff08arr[0]\uff09\u83b7\u53d6\u7d22\u5f15\u4e3a 0 \u7684\u5143\u7d20\u3002\u4f7f\u7528 array.get() \u65b9\u6cd5\uff08array.get(arr, 0)\uff09\u4f20\u5165\u6570\u7ec4\u548c\u7d22\u5f15\u4e3a 0 \u7684\u53c2\u6570\u3002 \u5982\u4f55\u83b7\u53d6 Java \u6570\u7ec4\u7684\u7b2c\u4e00\u4e2a\u5143\u7d20 \u5728 Java \u4e2d\uff0c\u83b7\u53d6\u6570\u7ec4\u7b2c\u4e00\u4e2a\u5143\u7d20\u975e\u5e38\u7b80\u5355\u3002\u4e0b\u9762\u4ecb\u7ecd\u4e24\u79cd\u65b9\u6cd5\uff1a 1. \u4f7f\u7528\u7d22\u5f15\u4e0b\u6807 \u6700\u5e38\u7528\u7684\u65b9\u6cd5\u662f\u4f7f\u7528\u7d22\u5f15\u4e0b\u6807\u3002Java \u6570\u7ec4\u4ece 0 \u5f00\u59cb\u7d22\u5f15\uff0c\u56e0\u6b64\u7b2c\u4e00\u4e2a\u5143\u7d20\u4f4d\u4e8e\u7d22\u5f15 0 \u5904\u3002 \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b \u4ee5\u4e0b\u4ee3\u7801\u83b7\u53d6\u540d\u4e3a arr \u7684\u6570\u7ec4\u7684\u7b2c\u4e00\u4e2a\u5143\u7d20\uff1a int firstElement = arr[0]; \u767b\u5f55\u540e\u590d\u5236 2. \u4f7f\u7528 Array.get() \u65b9\u6cd5 \u53e6\u4e00\u79cd\u83b7\u53d6\u7b2c\u4e00\u4e2a\u5143\u7d20\u7684\u65b9\u6cd5\u662f\u4f7f\u7528 Array.get() \u65b9\u6cd5\u3002\u8be5\u65b9\u6cd5\u63a5\u53d7\u6570\u7ec4\u548c\u7d22\u5f15\u4f5c\u4e3a\u53c2\u6570\uff0c\u5e76\u8fd4\u56de\u6307\u5b9a\u7d22\u5f15\u5904\u7684\u5143\u7d20\u3002 \u4ee5\u4e0b\u4ee3\u7801\u83b7\u53d6\u540d\u4e3a arr \u7684\u6570\u7ec4\u7684\u7b2c\u4e00\u4e2a\u5143\u7d20\uff1a int firstElement = Array.get(arr, 0); \u767b\u5f55\u540e\u590d\u5236 \u8fd9\u4e24\u79cd\u65b9\u6cd5\u90fd\u8fd4\u56de\u6570\u7ec4\u7684\u7b2c\u4e00\u4e2a\u5143\u7d20\u3002\u9009\u62e9\u54ea\u79cd\u65b9\u6cd5\u53d6\u51b3\u4e8e\u4e2a\u4eba\u504f\u597d\u548c\u4ee3\u7801\u4e0a\u4e0b\u6587\u7684\u5177\u4f53\u8981\u6c42\u3002 \u4ee5\u4e0a\u5c31\u662fjava\u600e\u4e48\u53d6\u6570\u7ec4\u7684\u7b2c\u4e00\u4e2a\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8IDCBABY\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-66954","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/66954","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=66954"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/66954\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=66954"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=66954"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=66954"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}