{"id":202946,"date":"2025-05-22T08:09:04","date_gmt":"2025-05-22T00:09:04","guid":{"rendered":"https:\/\/server.hk\/cnblog\/202946\/"},"modified":"2025-05-22T08:09:04","modified_gmt":"2025-05-22T00:09:04","slug":"%e5%8f%af%e5%8f%98%e5%8f%82%e6%95%b0%e4%b8%8e-varargs-%e5%8f%82%e6%95%b0%e4%b9%8b%e9%97%b4%e6%9c%89%e4%bb%80%e4%b9%88%e5%8c%ba%e5%88%ab%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/202946\/","title":{"rendered":"\u53ef\u53d8\u53c2\u6570\u4e0e varargs \u53c2\u6570\u4e4b\u95f4\u6709\u4ec0\u4e48\u533a\u522b\uff1f"},"content":{"rendered":"<p><b><\/b>     <\/p>\n<h1>\u53ef\u53d8\u53c2\u6570\u4e0e varargs \u53c2\u6570\u4e4b\u95f4\u6709\u4ec0\u4e48\u533a\u522b\uff1f<\/h1>\n<p><span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u6587\u7ae0<\/span>\u4e0d\u77e5\u9053\u5927\u5bb6\u662f\u5426\u719f\u6089\uff1f\u4eca\u5929\u6211\u5c06\u7ed9\u5927\u5bb6\u4ecb\u7ecd<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300a\u53ef\u53d8\u53c2\u6570\u4e0e varargs \u53c2\u6570\u4e4b\u95f4\u6709\u4ec0\u4e48\u533a\u522b\uff1f\u300b<\/span>\uff0c\u8fd9\u7bc7\u6587\u7ae0\u4e3b\u8981\u4f1a\u8bb2\u5230<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u5982\u679c\u4f60\u5728\u770b\u5b8c\u672c\u7bc7\u6587\u7ae0\u540e\uff0c\u6709\u66f4\u597d\u7684\u5efa\u8bae\u6216\u8005\u53d1\u73b0\u54ea\u91cc\u6709\u95ee\u9898\uff0c\u5e0c\u671b\u5927\u5bb6\u90fd\u80fd\u79ef\u6781\u8bc4\u8bba\u6307\u51fa\uff0c\u8c22\u8c22\uff01\u5e0c\u671b\u6211\u4eec\u80fd\u4e00\u8d77\u52a0\u6cb9\u8fdb\u6b65\uff01<\/p>\n<p>Java \u4e2d\u53ef\u53d8\u53c2\u6570\u548c varargs \u53c2\u6570\u5141\u8bb8\u65b9\u6cd5\u63a5\u53d7\u53ef\u53d8\u6570\u91cf\u7684\u53c2\u6570\u3002\u53ef\u53d8\u53c2\u6570\u4f7f\u7528 &#8230; \u63a5\u6536\u6570\u7ec4\u5e76\u4f7f\u7528 args \u8bbf\u95ee\u53c2\u6570\uff0c\u800c varargs \u76f4\u63a5\u63a5\u6536\u53c2\u6570\u5e76\u4f7f\u7528 parameters \u8bbf\u95ee\u53c2\u6570\u3002\u53e6\u5916\uff0c\u53ef\u53d8\u53c2\u6570\u4f7f\u7528\u6570\u7ec4\u7c7b\u578b\u6307\u5b9a\u7b26\uff0c\u800c varargs \u4ec5\u4f7f\u7528 &#8230;\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241027\/1730003025671dc05193eb6.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>Java \u4e2d\u53ef\u53d8\u53c2\u6570\u4e0e varargs \u53c2\u6570\u7684\u5dee\u5f02<\/strong><\/p>\n<p>\u5728 Java \u4e2d\uff0c\u53ef\u53d8\u53c2\u6570\u548c varargs \u53c2\u6570\u5728\u65b9\u6cd5\u7b7e\u540d\u4e2d\u8868\u793a\u5141\u8bb8\u53ef\u53d8\u6570\u91cf\u7684\u53c2\u6570\u3002\u867d\u7136\u5b83\u4eec\u63d0\u4f9b\u4e86\u7c7b\u4f3c\u7684\u529f\u80fd\uff0c\u4f46\u5b83\u4eec\u4e4b\u95f4\u5b58\u5728\u4e00\u4e9b\u5173\u952e\u5dee\u5f02\u3002<\/p>\n<p><strong>\u53ef\u53d8\u53c2\u6570<\/strong><\/p>\n<ul>\n<li>\u4f7f\u7528 <code>...<\/code>\uff08\u7701\u7565\u53f7\uff09\u8868\u793a\u3002<\/li>\n<li>\u63a5\u53d7\u4e00\u4e2a\u6570\u7ec4\u4f5c\u4e3a\u53c2\u6570\u3002<\/li>\n<li>\u5728\u65b9\u6cd5\u4f53\u5185\u4f7f\u7528 <code>args<\/code> \u8bbf\u95ee\u53c2\u6570\u3002<\/li>\n<\/ul>\n<p><strong>\u793a\u4f8b\u4ee3\u7801\uff1a<\/strong><\/p>\n<pre>public static void printNames(String... names) {\n    for (String name : names) {\n        System.out.println(name);\n    }\n}<\/pre>\n<p><strong>varargs \u53c2\u6570<\/strong><\/p>\n<ul>\n<li>\u4f7f\u7528 <code>...<\/code> \u548c\u7c7b\u578b\u6307\u5b9a\u7b26\u8868\u793a\u3002<\/li>\n<li>\u76f4\u63a5\u63a5\u6536\u53ef\u53d8\u6570\u91cf\u7684\u53c2\u6570\u3002<\/li>\n<li>\u5728\u65b9\u6cd5\u4f53\u5185\u4f7f\u7528 <code>parameters<\/code> \u8bbf\u95ee\u53c2\u6570\u3002<\/li>\n<\/ul>\n<p><strong>\u793a\u4f8b\u4ee3\u7801\uff1a<\/strong><\/p>\n<pre>public static int sum(int... numbers) {\n    int total = 0;\n    for (int number : numbers) {\n        total += number;\n    }\n    return total;\n}<\/pre>\n<p><strong>\u5b9e\u6218\u6848\u4f8b<\/strong><\/p>\n<p>\u5728\u4ee5\u4e0b\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528\u53ef\u53d8\u53c2\u6570\u65b9\u6cd5\u6765\u6253\u5370\u4e00\u7ec4\u5b57\u7b26\u4e32\uff0c\u5e76\u4f7f\u7528 varargs \u53c2\u6570\u65b9\u6cd5\u6765\u8ba1\u7b97\u4e00\u7ec4\u6574\u6570\u4e4b\u548c\uff1a<\/p>\n<pre>public static void main(String[] args) {\n    \/\/ \u53ef\u53d8\u53c2\u6570\n    printNames(\"John\", \"Jane\", \"Bob\");\n\n    \/\/ varargs \u53c2\u6570\n    int sum = sum(1, 2, 3, 4, 5);\n    System.out.println(sum); \/\/ \u8f93\u51fa\uff1a15\n}<\/pre>\n<p><strong>\u4e3b\u8981\u533a\u522b<\/strong><\/p>\n<ul>\n<li><strong>\u53c2\u6570\u7c7b\u578b\uff1a<\/strong>\u53ef\u53d8\u53c2\u6570\u4f7f\u7528\u6570\u7ec4\uff0c\u800c varargs \u76f4\u63a5\u63a5\u6536\u53c2\u6570\u3002<\/li>\n<li><strong>\u6570\u7ec4\u8bbf\u95ee\uff1a<\/strong>\u53ef\u53d8\u53c2\u6570\u4f7f\u7528 <code>args<\/code>\uff0c\u800c varargs \u4f7f\u7528 <code>parameters<\/code>\u3002<\/li>\n<li><strong>\u8bed\u6cd5\uff1a<\/strong>\u53ef\u53d8\u53c2\u6570\u4f7f\u7528 <code>...<\/code> \u548c\u7c7b\u578b\u6307\u5b9a\u7b26\uff0c\u800c varargs \u4ec5\u4f7f\u7528 <code>...<\/code>\u3002<\/li>\n<\/ul>\n<p>\u603b\u4e4b\uff0c\u53ef\u53d8\u53c2\u6570\u548c varargs \u53c2\u6570\u5141\u8bb8 Java \u65b9\u6cd5\u63a5\u53d7\u53ef\u53d8\u6570\u91cf\u7684\u53c2\u6570\u3002\u9009\u62e9\u54ea\u79cd\u65b9\u6cd5\u53d6\u51b3\u4e8e\u6240\u9700\u7684\u6570\u7ec4\u8bbf\u95ee\u548c\u4ee3\u7801\u7ed3\u6784\u3002<\/p>\n<p>\u7ec8\u4e8e\u4ecb\u7ecd\u5b8c\u5566\uff01\u5c0f\u4f19\u4f34\u4eec\uff0c\u8fd9\u7bc7\u5173\u4e8e\u300a\u53ef\u53d8\u53c2\u6570\u4e0e varargs \u53c2\u6570\u4e4b\u95f4\u6709\u4ec0\u4e48\u533a\u522b\uff1f\u300b\u7684\u4ecb\u7ecd\u5e94\u8be5\u8ba9\u4f60\u6536\u83b7\u591a\u591a\u4e86\u5427\uff01\u6b22\u8fce\u5927\u5bb6\u6536\u85cf\u6216\u5206\u4eab\u7ed9\u66f4\u591a\u9700\u8981\u5b66\u4e60\u7684\u670b\u53cb\u5427~\u516c\u4f17\u53f7\u4e5f\u4f1a\u53d1\u5e03\u6587\u7ae0\u76f8\u5173\u77e5\u8bc6\uff0c\u5feb\u6765\u5173\u6ce8\u5427\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u53ef\u53d8\u53c2\u6570\u4e0e varargs \u53c2\u6570&#46;&#46;&#46;<\/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-202946","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202946","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=202946"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202946\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=202946"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=202946"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=202946"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}