{"id":202920,"date":"2025-05-22T10:53:56","date_gmt":"2025-05-22T02:53:56","guid":{"rendered":"https:\/\/server.hk\/cnblog\/202920\/"},"modified":"2025-05-22T10:53:56","modified_gmt":"2025-05-22T02:53:56","slug":"varargs-%e5%8f%82%e6%95%b0%e4%b8%8e%e5%8f%af%e5%8f%98%e5%8f%82%e6%95%b0%e5%88%97%e8%a1%a8%e4%b9%8b%e9%97%b4%e6%9c%89%e4%bb%80%e4%b9%88%e5%85%b3%e7%b3%bb%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/202920\/","title":{"rendered":"varargs \u53c2\u6570\u4e0e\u53ef\u53d8\u53c2\u6570\u5217\u8868\u4e4b\u95f4\u6709\u4ec0\u4e48\u5173\u7cfb\uff1f"},"content":{"rendered":"

<\/b> <\/p>\n

varargs \u53c2\u6570\u4e0e\u53ef\u53d8\u53c2\u6570\u5217\u8868\u4e4b\u95f4\u6709\u4ec0\u4e48\u5173\u7cfb\uff1f<\/h1>\n

\u5927\u5bb6\u597d\uff0c\u4eca\u5929\u672c\u4eba\u7ed9\u5927\u5bb6\u5e26\u6765\u6587\u7ae0\u300avarargs \u53c2\u6570\u4e0e\u53ef\u53d8\u53c2\u6570\u5217\u8868\u4e4b\u95f4\u6709\u4ec0\u4e48\u5173\u7cfb\uff1f\u300b<\/span>\uff0c\u6587\u4e2d\u5185\u5bb9\u4e3b\u8981\u6d89\u53ca\u5230<\/span><\/span>\uff0c\u5982\u679c\u4f60\u5bf9\u6587\u7ae0<\/span>\u65b9\u9762\u7684\u77e5\u8bc6\u70b9\u611f\u5174\u8da3\uff0c\u90a3\u5c31\u8bf7\u5404\u4f4d\u670b\u53cb\u7ee7\u7eed\u770b\u4e0b\u53bb\u5427~\u5e0c\u671b\u80fd\u771f\u6b63\u5e2e\u5230\u4f60\u4eec\uff0c\u8c22\u8c22\uff01<\/p>\n

<\/p>\n

varargs \u53c2\u6570<\/strong><\/p>\n

\u5728 Java \u4e2d\uff0cvarargs \u53c2\u6570\u5141\u8bb8\u60a8\u5c06\u53ef\u53d8\u6570\u91cf\u7684\u53c2\u6570\u4f20\u9012\u7ed9\u65b9\u6cd5\u3002\u8fd9\u4e9b\u53c2\u6570\u7531\u4e00\u4e2a\u4ee5\u4e09\u4e2a\u70b9\uff08…\uff09\u7ed3\u5c3e\u7684\u6570\u636e\u7c7b\u578b\u58f0\u660e\u3002\u4f8b\u5982\uff1a<\/p>\n

public static void printNumbers(int... numbers) {\n  for (int number : numbers) {\n    System.out.println(number);\n  }\n}<\/pre>\n
\u5728\u8fd9\u4e2a\u65b9\u6cd5\u4e2d\uff0cnumbers<\/code> \u662f\u4e00\u4e2a varargs \u53c2\u6570\uff0c\u5b83\u53ef\u4ee5\u63a5\u6536\u4efb\u610f\u6570\u91cf\u7684\u6574\u6570\u3002<\/p>\n
\u53ef\u53d8\u53c2\u6570\u5217\u8868<\/strong><\/p>\n
\u5f53\u8c03\u7528\u5e26\u6709 varargs \u53c2\u6570\u7684\u65b9\u6cd5\u65f6\uff0c\u60a8\u53ef\u4ee5\u4f20\u9012\u4efb\u610f\u6570\u91cf\u7684\u5b9e\u53c2\u3002\u5728 Java \u4e2d\uff0cvarargs \u53c2\u6570\u5b9e\u9645\u4e0a\u4f20\u9012\u4e3a\u4e00\u4e2a\u6570\u7ec4\u3002\u4f8b\u5982\uff0c\u4ee5\u4e0b\u4ee3\u7801\u5c06\u6253\u5370\u51fa\u6570\u5b57 1\u30012 \u548c 3\uff1a<\/p>\n
printNumbers(1, 2, 3);<\/pre>\n
\u5b9e\u6218\u6848\u4f8b<\/strong><\/p>\n
\u5047\u8bbe\u60a8\u6709\u4e00\u4e2a\u4efb\u52a1\uff0c\u9700\u8981\u6839\u636e\u7528\u6237\u8f93\u5165\u6253\u5370\u4e00\u7cfb\u5217\u6570\u5b57\u3002\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n
import java.util.Scanner;\n\nclass PrintNumbers {\n\n  public static void main(String[] args) {\n    Scanner input = new Scanner(System.in);\n\n    \/\/ \u63d0\u793a\u7528\u6237\u8f93\u5165\u6570\u5b57\n    System.out.println(\"\u8bf7\u8f93\u5165\u6570\u5b57\uff0c\u4ee5\u7a7a\u683c\u5206\u9694\uff1a\");\n    String inputStr = input.nextLine();\n\n    \/\/ \u5c06\u8f93\u5165\u8f6c\u6362\u4e3a\u6574\u6570\u5e76\u5b58\u50a8\u5728\u6570\u7ec4\u4e2d\n    String[] numbersAsStrings = inputStr.split(\" \");\n    int[] numbers = new int[numbersAsStrings.length];\n    for (int i = 0; i < numbersAsStrings.length; i++) {\n      numbers[i] = Integer.parseInt(numbersAsStrings[i]);\n    }\n\n    \/\/ \u4f7f\u7528 varargs \u6253\u5370\u6570\u5b57\n    printNumbers(numbers);\n  }\n\n  public static void printNumbers(int... numbers) {\n    for (int number : numbers) {\n      System.out.println(number);\n    }\n  }\n}<\/pre>\n
\u8fd9\u90e8\u5206\u4ee3\u7801\u5305\u542b\u4e00\u4e2a\u540d\u4e3a printNumbers<\/code> \u7684\u65b9\u6cd5\uff0c\u5b83\u4f7f\u7528 varargs \u53c2\u6570\u63a5\u6536\u4efb\u610f\u6570\u91cf\u7684\u6574\u6570\u3002\u8be5\u65b9\u6cd5\u904d\u5386\u6570\u7ec4\u5e76\u6253\u5370\u6bcf\u4e2a\u6574\u6570\u3002<\/p>\n
\u4eca\u5929\u5173\u4e8e\u300avarargs \u53c2\u6570\u4e0e\u53ef\u53d8\u53c2\u6570\u5217\u8868\u4e4b\u95f4\u6709\u4ec0\u4e48\u5173\u7cfb\uff1f\u300b\u7684\u5185\u5bb9\u4ecb\u7ecd\u5c31\u5230\u6b64\u7ed3\u675f\uff0c\u5982\u679c\u6709\u4ec0\u4e48\u7591\u95ee\u6216\u8005\u5efa\u8bae\uff0c\u53ef\u4ee5\u5728\u516c\u4f17\u53f7\u4e0b\u591a\u591a\u56de\u590d\u4ea4\u6d41\uff1b\u6587\u4e2d\u82e5\u6709\u4e0d\u6b63\u4e4b\u5904\uff0c\u4e5f\u5e0c\u671b\u56de\u590d\u7559\u8a00\u4ee5\u544a\u77e5\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
varargs \u53c2\u6570\u4e0e\u53ef\u53d8\u53c2\u6570\u5217...<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4925],"tags":[],"class_list":["post-202920","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202920","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=202920"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202920\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=202920"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=202920"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=202920"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}