{"id":206707,"date":"2025-06-12T12:58:45","date_gmt":"2025-06-12T04:58:45","guid":{"rendered":"https:\/\/server.hk\/cnblog\/206707\/"},"modified":"2025-06-12T12:58:45","modified_gmt":"2025-06-12T04:58:45","slug":"c-%e5%92%8c-java-%e6%b3%9b%e5%9e%8b%ef%bc%9a%e5%a6%82%e4%bd%95%e5%ae%9e%e7%8e%b0%e7%b1%bb%e5%9e%8b%e7%ba%a6%e6%9d%9f%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/206707\/","title":{"rendered":"C++ \u548c Java \u6cdb\u578b\uff1a\u5982\u4f55\u5b9e\u73b0\u7c7b\u578b\u7ea6\u675f\uff1f"},"content":{"rendered":"<p>\u6765\u5230GOLANG\u7684\u5927\u5bb6\uff0c\u76f8\u4fe1\u90fd\u662f\u7f16\u7a0b\u5b66\u4e60\u7231\u597d\u8005\uff0c\u5e0c\u671b\u5728\u8fd9\u91cc\u5b66\u4e60GOLANG\u76f8\u5173\u7f16\u7a0b\u77e5\u8bc6\u3002\u4e0b\u9762\u672c\u7bc7\u6587\u7ae0\u5c31\u6765\u5e26\u5927\u5bb6\u804a\u804a\u300aC++ \u548c Java \u6cdb\u578b\uff1a\u5982\u4f55\u5b9e\u73b0\u7c7b\u578b\u7ea6\u675f\uff1f\u300b\uff0c\u4ecb\u7ecd\u4e00\u4e0b\uff0c\u5e0c\u671b\u5bf9\u5927\u5bb6\u7684\u77e5\u8bc6\u79ef\u7d2f\u6709\u6240\u5e2e\u52a9\uff0c\u52a9\u529b\u5b9e\u6218\u5f00\u53d1\uff01,<br \/>\n<img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241120\/1732073814673d595678d4a.jpg\" class=\"aligncenter\">,<br \/>\n<strong>c++\u3001java \u6cdb\u578b\u7684\u7ea6\u675f<\/strong>,golang \u7684\u6cdb\u578b\u5141\u8bb8\u591a\u7ea6\u675f\uff0c\u4f8b\u5982 comparable \u548c int64 | float64\uff0c\u7528\u4e8e\u9650\u5236\u7c7b\u578b\u53c2\u6570\u7684\u8303\u56f4\u3002\u90a3\u4e48\uff0cc++ \u548c java \u7684\u6cdb\u578b\u662f\u5426\u4e5f\u5177\u6709\u7c7b\u4f3c\u7684\u7ea6\u675f\u5462\uff1f,<br \/>\n<strong>c++<\/strong>,\u4ece c++20 \u5f00\u59cb\uff0c\u5f15\u5165\u4e86\u6982\u5ff5\uff08concept\uff09\uff0c\u5b83\u53ef\u4ee5\u6307\u5b9a\u7528\u4e8e\u7ea6\u675f\u6a21\u677f\u53c2\u6570\u7684\u5c5e\u6027\u548c\u8981\u6c42\u3002\u6982\u5ff5\u4f7f\u7528\u5173\u952e\u5b57 concept \u58f0\u660e\uff0c\u4f8b\u5982\uff1a,\u8fd9\u4e2a\u6982\u5ff5\u786e\u4fdd\u7c7b\u578b t \u5b9e\u73b0\u5c0f\u4e8e\u8fd0\u7b97\u7b26 &lt;\u3002\u5728\u4f7f\u7528\u6cdb\u578b\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528 requires \u5b50\u53e5\u6765\u7ea6\u675f\u53c2\u6570\u7c7b\u578b\uff1a,<br \/>\n<strong>java<\/strong>,\u4e0e c++ \u4e0d\u540c\uff0cjava \u7684\u6cdb\u578b\u6ca1\u6709\u5185\u7f6e\u7684\u7ea6\u675f\u673a\u5236\u3002\u4f46\u662f\uff0c\u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528\u754c\u9762\u7684\u591a\u91cd\u7ee7\u627f\uff0c\u6216\u901a\u8fc7\u521b\u5efa\u81ea\u5b9a\u4e49\u6ce8\u89e3\u5e76\u4f7f\u7528\u53cd\u5c04\u673a\u5236\u6765\u5b9e\u73b0\u7c7b\u4f3c\u7684\u529f\u80fd\u3002,\u4f8b\u5982\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u63a5\u53e3\u6765\u6307\u5b9a\u4e00\u4e2a\u53ef\u6bd4\u8f83\u7684\u7c7b\u578b\uff1a,\u7136\u540e\uff0c\u6cdb\u578b\u53ef\u4ee5\u5982\u4e0b\u7ea6\u675f\u7c7b\u578b\u53c2\u6570\uff1a,<br \/>\n<strong>\u7ed3\u8bba<\/strong>,c++ \u548c java \u4e2d\u90fd\u53ef\u4ee5\u5b9e\u73b0\u6cdb\u578b\u7ea6\u675f\uff0c\u4f46\u5176\u65b9\u6cd5\u6709\u6240\u4e0d\u540c\uff1ac++ \u4f7f\u7528\u6982\u5ff5\uff0c\u800c java \u4f9d\u8d56\u4e8e\u63a5\u53e3\u6216\u53cd\u5c04\u3002,\u4ee5\u4e0a\u5c31\u662f\u300aC++ \u548c Java \u6cdb\u578b\uff1a\u5982\u4f55\u5b9e\u73b0\u7c7b\u578b\u7ea6\u675f\uff1f\u300b\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u5173\u4e8e\u7684\u8d44\u6599\u8bf7\u5173\u6ce8GOLANG\u516c\u4f17\u53f7\uff01,c++\u3001java \u6cdb\u578b\u7684\u7ea6\u675f,\u6765\u5230GOLANG\u7684\u5927\u5bb6\uff0c\u76f8\u4fe1\u90fd\u662f\u7f16\u7a0b\u5b66\u4e60\u7231\u597d\u8005\uff0c\u5e0c\u671b\u5728\u8fd9\u91cc\u5b66\u4e60GOLANG\u76f8\u5173\u7f16\u7a0b\u77e5\u8bc6\u3002\u4e0b\u9762\u672c\u7bc7\u6587\u7ae0\u5c31\u6765\u5e26\u5927\u5bb6\u804a\u804a\u300aC++ \u548c Java \u6cdb\u578b\uff1a\u5982\u4f55\u5b9e\u73b0\u7c7b\u578b\u7ea6\u675f\uff1f\u300b\uff0c\u4ecb\u7ecd\u4e00\u4e0b\uff0c\u5e0c\u671b\u5bf9\u5927\u5bb6\u7684\u77e5\u8bc6\u79ef\u7d2f\u6709\u6240\u5e2e\u52a9\uff0c\u52a9\u529b\u5b9e\u6218\u5f00\u53d1\uff01,<br \/>\n<b><\/b> <\/p>\n<p>\u5f53\u524d\u4f4d\u7f6e\uff1a <span>&gt;<\/span>  <span>&gt;<\/span>  <span>&gt;<\/span>  <span>&gt;<\/span> <span>C++ \u548c Java \u6cdb\u578b\uff1a\u5982\u4f55\u5b9e\u73b0\u7c7b\u578b\u7ea6\u675f\uff1f<\/span><\/p>\n<h1>C++ \u548c Java \u6cdb\u578b\uff1a\u5982\u4f55\u5b9e\u73b0\u7c7b\u578b\u7ea6\u675f\uff1f<\/h1>\n<p><span>2024-11-20 11:37:10<\/span><br \/>\n<span><i><\/i>0\u6d4f\u89c8<\/span><br \/>\n<span style=\"cursor: pointer\"><i><\/i>\u6536\u85cf<\/span> <\/p>\n<p>\u6765\u5230GOLANG\u7684\u5927\u5bb6\uff0c\u76f8\u4fe1\u90fd\u662f\u7f16\u7a0b\u5b66\u4e60\u7231\u597d\u8005\uff0c\u5e0c\u671b\u5728\u8fd9\u91cc\u5b66\u4e60GOLANG\u76f8\u5173\u7f16\u7a0b\u77e5\u8bc6\u3002\u4e0b\u9762\u672c\u7bc7\u6587\u7ae0\u5c31\u6765\u5e26\u5927\u5bb6\u804a\u804a\u300aC++ \u548c Java \u6cdb\u578b\uff1a\u5982\u4f55\u5b9e\u73b0\u7c7b\u578b\u7ea6\u675f\uff1f\u300b\uff0c\u4ecb\u7ecd\u4e00\u4e0b\uff0c\u5e0c\u671b\u5bf9\u5927\u5bb6\u7684\u77e5\u8bc6\u79ef\u7d2f\u6709\u6240\u5e2e\u52a9\uff0c\u52a9\u529b\u5b9e\u6218\u5f00\u53d1\uff01<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241120\/1732073814673d595678d4a.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>c++\u3001java \u6cdb\u578b\u7684\u7ea6\u675f<\/strong><\/p>\n<p>golang \u7684\u6cdb\u578b\u5141\u8bb8\u591a\u7ea6\u675f\uff0c\u4f8b\u5982 comparable \u548c int64 | float64\uff0c\u7528\u4e8e\u9650\u5236\u7c7b\u578b\u53c2\u6570\u7684\u8303\u56f4\u3002\u90a3\u4e48\uff0cc++ \u548c java \u7684\u6cdb\u578b\u662f\u5426\u4e5f\u5177\u6709\u7c7b\u4f3c\u7684\u7ea6\u675f\u5462\uff1f<\/p>\n<p><strong>c++<\/strong><\/p>\n<p>\u4ece c++20 \u5f00\u59cb\uff0c\u5f15\u5165\u4e86\u6982\u5ff5\uff08concept\uff09\uff0c\u5b83\u53ef\u4ee5\u6307\u5b9a\u7528\u4e8e\u7ea6\u675f\u6a21\u677f\u53c2\u6570\u7684\u5c5e\u6027\u548c\u8981\u6c42\u3002\u6982\u5ff5\u4f7f\u7528\u5173\u952e\u5b57 concept \u58f0\u660e\uff0c\u4f8b\u5982\uff1a<\/p>\n<pre>concept comparable = requires(t t) {\n    { t &lt; t } -&gt; bool;\n};<\/pre>\n<p>\u8fd9\u4e2a\u6982\u5ff5\u786e\u4fdd\u7c7b\u578b t \u5b9e\u73b0\u5c0f\u4e8e\u8fd0\u7b97\u7b26 &lt;\u3002\u5728\u4f7f\u7528\u6cdb\u578b\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528 requires \u5b50\u53e5\u6765\u7ea6\u675f\u53c2\u6570\u7c7b\u578b\uff1a<\/p>\n<pre>template &lt;typename t&gt;\nrequires comparable&lt;t&gt;\nvoid foo(t t) {\n    \/\/ ...\n}<\/pre>\n<p><strong>java<\/strong><\/p>\n<p>\u4e0e c++ \u4e0d\u540c\uff0cjava \u7684\u6cdb\u578b\u6ca1\u6709\u5185\u7f6e\u7684\u7ea6\u675f\u673a\u5236\u3002\u4f46\u662f\uff0c\u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528\u754c\u9762\u7684\u591a\u91cd\u7ee7\u627f\uff0c\u6216\u901a\u8fc7\u521b\u5efa\u81ea\u5b9a\u4e49\u6ce8\u89e3\u5e76\u4f7f\u7528\u53cd\u5c04\u673a\u5236\u6765\u5b9e\u73b0\u7c7b\u4f3c\u7684\u529f\u80fd\u3002<\/p>\n<p>\u4f8b\u5982\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u63a5\u53e3\u6765\u6307\u5b9a\u4e00\u4e2a\u53ef\u6bd4\u8f83\u7684\u7c7b\u578b\uff1a<\/p>\n<pre>interface comparable&lt;t&gt; {\n    int compareto(t other);\n}<\/pre>\n<p>\u7136\u540e\uff0c\u6cdb\u578b\u53ef\u4ee5\u5982\u4e0b\u7ea6\u675f\u7c7b\u578b\u53c2\u6570\uff1a<\/p>\n<pre>&lt;T extends Comparable&lt;T&gt;&gt; void foo(T t) {\n    \/\/ ...\n}<\/pre>\n<p><strong>\u7ed3\u8bba<\/strong><\/p>\n<p>c++ \u548c java \u4e2d\u90fd\u53ef\u4ee5\u5b9e\u73b0\u6cdb\u578b\u7ea6\u675f\uff0c\u4f46\u5176\u65b9\u6cd5\u6709\u6240\u4e0d\u540c\uff1ac++ \u4f7f\u7528\u6982\u5ff5\uff0c\u800c java \u4f9d\u8d56\u4e8e\u63a5\u53e3\u6216\u53cd\u5c04\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662f\u300aC++ \u548c Java \u6cdb\u578b\uff1a\u5982\u4f55\u5b9e\u73b0\u7c7b\u578b\u7ea6\u675f\uff1f\u300b\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u5173\u4e8e\u7684\u8d44\u6599\u8bf7\u5173\u6ce8GOLANG\u516c\u4f17\u53f7\uff01<\/p>\n<dl>\n<dt>\n <\/dt>\n<dd>\n   win7\u600e\u4e48\u66f4\u6539\u56fe\u6807\u6837\u5f0f win7\u56fe\u6807\u6837\u5f0f\u66f4\u6539\u6559\u7a0b\n <\/dd>\n<\/dl>\n<dl>\n<dt>\n <\/dt>\n<dd>\n   Go \u4e2d\u7ed3\u6784\u4f53\u5982\u4f55\u5206\u914d\u5185\u5b58\uff1a\u6307\u9488\u4e0e\u503c\u7c7b\u578b\u6709\u4f55\u533a\u522b\uff1f\n <\/dd>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"<p>\u6765\u5230GOLANG\u7684\u5927\u5bb6\uff0c\u76f8\u4fe1\u90fd\u662f&#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-206707","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/206707","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=206707"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/206707\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=206707"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=206707"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=206707"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}