{"id":37578,"date":"2024-11-26T17:59:40","date_gmt":"2024-11-26T09:59:40","guid":{"rendered":"https:\/\/fwq.ai\/blog\/37578\/"},"modified":"2024-11-26T17:59:40","modified_gmt":"2024-11-26T09:59:40","slug":"java%e4%b8%ad%e6%95%b0%e7%bb%84%e4%b9%8b%e9%97%b4%e6%80%8e%e4%b9%88%e8%b5%8b%e5%80%bc","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/37578\/","title":{"rendered":"java\u4e2d\u6570\u7ec4\u4e4b\u95f4\u600e\u4e48\u8d4b\u503c"},"content":{"rendered":"

\n java \u4e2d\u6570\u7ec4\u8d4b\u503c\u7684\u65b9\u5f0f\u6709\uff1a\u4f7f\u7528\u8d4b\u503c\u8fd0\u7b97\u7b26 (=) \u590d\u5236\u5f15\u7528\uff1b\u4f7f\u7528 system.arraycopy() \u65b9\u6cd5\u590d\u5236\u5185\u5bb9\uff0c\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u6570\u7ec4\u3002\u6570\u7ec4\u4e3a\u5f15\u7528\u7c7b\u578b\uff0c\u56e0\u6b64\u8d4b\u503c\u590d\u5236\u7684\u662f\u5f15\u7528\uff0c\u800c\u975e\u6570\u7ec4\u672c\u8eab\u3002\n<\/p><\/blockquote>\n

\"java\u4e2d\u6570\u7ec4\u4e4b\u95f4\u600e\u4e48\u8d4b\u503c\u63d2\u56fe\"<\/p>\n

Java \u4e2d\u6570\u7ec4\u4e4b\u95f4\u7684\u8d4b\u503c<\/strong><\/p>\n

\u5728 Java \u4e2d\uff0c\u6570\u7ec4\u662f\u4e00\u79cd\u5f15\u7528\u7c7b\u578b\uff0c\u56e0\u6b64\u901a\u8fc7\u8d4b\u503c\uff0c\u5b9e\u9645\u4e0a\u662f\u5c06\u4e00\u4e2a\u6570\u7ec4\u7684\u5f15\u7528\u590d\u5236\u7ed9\u53e6\u4e00\u4e2a\u53d8\u91cf\u3002<\/p>\n

\u7528\u8d4b\u503c\u8fd0\u7b97\u7b26 (=)<\/strong><\/p>\n

\u6700\u7b80\u5355\u7684\u65b9\u5f0f\u662f\u4f7f\u7528\u8d4b\u503c\u8fd0\u7b97\u7b26 (=)\u3002\u8fd9\u4f1a\u5c06\u4e00\u4e2a\u6570\u7ec4\u7684\u5f15\u7528\u76f4\u63a5\u8d4b\u503c\u7ed9\u53e6\u4e00\u4e2a\u6570\u7ec4\u53d8\u91cf\u3002<\/p>\n

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

int[] arr1 = {1, 2, 3};\nint[] arr2 = arr1;<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u73b0\u5728\uff0carr2 \u548c arr1 \u6307\u5411\u540c\u4e00\u5757\u6570\u7ec4\u5185\u5b58\u3002\u66f4\u6539 arr1 \u6216 arr2 \u4e2d\u7684\u5143\u7d20\u90fd\u4f1a\u5f71\u54cd\u8fd9\u4e24\u4e2a\u6570\u7ec4\u3002<\/p>\n
\u4f7f\u7528 System.arraycopy()<\/strong><\/p>\n
System.arraycopy() \u65b9\u6cd5\u7528\u4e8e\u5c06\u4e00\u4e2a\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u590d\u5236\u5230\u53e6\u4e00\u4e2a\u6570\u7ec4\u4e2d\u3002\u8fd9\u4f1a\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u6570\u7ec4\uff0c\u800c\u4e0d\u662f\u590d\u5236\u5f15\u7528\u3002<\/p>\n
int[] arr1 = {1, 2, 3};\nint[] arr2 = new int[arr1.length];\nSystem.arraycopy(arr1, 0, arr2, 0, arr1.length);<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u73b0\u5728\uff0carr2 \u662f arr1 \u7684\u526f\u672c\uff0c\u5e76\u4e14\u5177\u6709\u81ea\u5df1\u7684\u5185\u5b58\u7a7a\u95f4\u3002\u66f4\u6539 arr1 \u4e2d\u7684\u5143\u7d20\u4e0d\u4f1a\u5f71\u54cd arr2\u3002<\/p>\n
\u6ce8\u610f\uff1a<\/strong><\/p>\n
    \n
  • \u5982\u679c\u4e24\u4e2a\u6570\u7ec4\u7684\u957f\u5ea6\u4e0d\u540c\uff0cSystem.arraycopy() \u65b9\u6cd5\u53ea\u4f1a\u590d\u5236\u524d\u8f83\u77ed\u6570\u7ec4\u7684\u5143\u7d20\u3002<\/li>\n
  • \u6570\u7ec4\u662f\u5f15\u7528\u7c7b\u578b\uff0c\u56e0\u6b64\u5f53\u5b83\u4eec\u88ab\u8d4b\u503c\u65f6\uff0c\u5b83\u4eec\u7684\u5f15\u7528\u4f1a\u88ab\u590d\u5236\uff0c\u800c\u4e0d\u662f\u5b83\u4eec\u7684\u5185\u5bb9\u3002<\/li>\n
  • \u4e3a\u4e86\u590d\u5236\u6570\u7ec4\u7684\u5185\u5bb9\uff0c\u53ef\u4ee5\u4f7f\u7528 System.arraycopy() \u65b9\u6cd5\u6216\u5faa\u73af\u9010\u4e2a\u590d\u5236\u5143\u7d20\u3002<\/li>\n<\/ul>\n
    \u4ee5\u4e0a\u5c31\u662fjava\u4e2d\u6570\u7ec4\u4e4b\u95f4\u600e\u4e48\u8d4b\u503c\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\u6570\u7ec4\u8d4b\u503c\u7684\u65b9\u5f0f\u6709\uff1a\u4f7f\u7528\u8d4b\u503c\u8fd0\u7b97\u7b26 (=) \u590d\u5236\u5f15\u7528\uff1b\u4f7f\u7528 system.arraycopy() \u65b9\u6cd5\u590d\u5236\u5185\u5bb9\uff0c\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u6570\u7ec4\u3002\u6570\u7ec4\u4e3a\u5f15\u7528\u7c7b\u578b\uff0c\u56e0\u6b64\u8d4b\u503c\u590d\u5236\u7684\u662f\u5f15\u7528\uff0c\u800c\u975e\u6570\u7ec4\u672c\u8eab\u3002 Java \u4e2d\u6570\u7ec4\u4e4b\u95f4\u7684\u8d4b\u503c \u5728 Java \u4e2d\uff0c\u6570\u7ec4\u662f\u4e00\u79cd\u5f15\u7528\u7c7b\u578b\uff0c\u56e0\u6b64\u901a\u8fc7\u8d4b\u503c\uff0c\u5b9e\u9645\u4e0a\u662f\u5c06\u4e00\u4e2a\u6570\u7ec4\u7684\u5f15\u7528\u590d\u5236\u7ed9\u53e6\u4e00\u4e2a\u53d8\u91cf\u3002 \u7528\u8d4b\u503c\u8fd0\u7b97\u7b26 (=) \u6700\u7b80\u5355\u7684\u65b9\u5f0f\u662f\u4f7f\u7528\u8d4b\u503c\u8fd0\u7b97\u7b26 (=)\u3002\u8fd9\u4f1a\u5c06\u4e00\u4e2a\u6570\u7ec4\u7684\u5f15\u7528\u76f4\u63a5\u8d4b\u503c\u7ed9\u53e6\u4e00\u4e2a\u6570\u7ec4\u53d8\u91cf\u3002 \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b int[] arr1 = {1, 2, 3}; int[] arr2 = arr1; \u767b\u5f55\u540e\u590d\u5236 \u73b0\u5728\uff0carr2 \u548c arr1 \u6307\u5411\u540c\u4e00\u5757\u6570\u7ec4\u5185\u5b58\u3002\u66f4\u6539 arr1 \u6216 arr2 \u4e2d\u7684\u5143\u7d20\u90fd\u4f1a\u5f71\u54cd\u8fd9\u4e24\u4e2a\u6570\u7ec4\u3002 \u4f7f\u7528 System.arraycopy() System.arraycopy() \u65b9\u6cd5\u7528\u4e8e\u5c06\u4e00\u4e2a\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u590d\u5236\u5230\u53e6\u4e00\u4e2a\u6570\u7ec4\u4e2d\u3002\u8fd9\u4f1a\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u6570\u7ec4\uff0c\u800c\u4e0d\u662f\u590d\u5236\u5f15\u7528\u3002 int[] arr1 = {1, 2, 3}; int[] arr2 = new int[arr1.length]; System.arraycopy(arr1, 0, arr2, 0, arr1.length); […]<\/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-37578","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/37578","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=37578"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/37578\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=37578"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=37578"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=37578"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}