{"id":202736,"date":"2025-05-22T10:09:03","date_gmt":"2025-05-22T02:09:03","guid":{"rendered":"https:\/\/server.hk\/cnblog\/202736\/"},"modified":"2025-05-22T10:09:03","modified_gmt":"2025-05-22T02:09:03","slug":"%e5%85%a8%e5%b1%80%e8%8c%83%e5%9b%b4%e5%b9%b6%e8%a1%8c%e6%b5%81%e5%a6%82%e4%bd%95%e6%8f%90%e5%8d%87%e6%95%88%e8%83%bd","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/202736\/","title":{"rendered":"\u5168\u5c40\u8303\u56f4\u5e76\u884c\u6d41\u5982\u4f55\u63d0\u5347\u6548\u80fd"},"content":{"rendered":"

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

\u5168\u5c40\u8303\u56f4\u5e76\u884c\u6d41\u5982\u4f55\u63d0\u5347\u6548\u80fd<\/h1>\n

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<\/p>\n

\u5168\u5c40\u8303\u56f4\u5e76\u884c\u6d41\u5982\u4f55\u63d0\u5347\u6548\u80fd<\/strong><\/p>\n

\u7b80\u4ecb<\/strong><\/p>\n

\u5e76\u884c\u6d41\u662f\u4e00\u79cd Java 8 \u5f15\u5165\u7684\u5f3a\u5927\u7279\u6027\uff0c\u5141\u8bb8\u6211\u4eec\u5e76\u884c\u5904\u7406\u96c6\u5408\u5143\u7d20\u3002\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u4f7f\u7528\u5e76\u884c\u6d41\u53ef\u4ee5\u663e\u7740\u63d0\u5347\u6027\u80fd\u3002\u672c\u6587\u5c06\u63a2\u8ba8\u5168\u5c40\u8303\u56f4\u5e76\u884c\u6d41\u4ee5\u53ca\u5b83\u4eec\u5982\u4f55\u5728\u5b9e\u6218\u4e2d\u63d0\u5347\u6548\u80fd\u3002<\/p>\n

\u5168\u5c40\u8303\u56f4\u5e76\u884c\u6d41<\/strong><\/p>\n

\u5168\u5c40\u8303\u56f4\u5e76\u884c\u6d41\u901a\u8fc7 java.util.concurrent.ForkJoinPool.commonPool()<\/code> \u7ebf\u7a0b\u6c60\u6267\u884c\u5e76\u884c\u4efb\u52a1\u3002\u8fd9\u4e2a\u7ebf\u7a0b\u6c60\u9ed8\u8ba4\u521b\u5efa\u4e0e\u5904\u7406\u5668\u5185\u6838\u6570\u76f8\u540c\u7684\u7ebf\u7a0b\u6570\u3002<\/p>\n

\u63d0\u5347\u6548\u80fd\u7684\u5b9e\u6218\u6848\u4f8b<\/strong><\/p>\n

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\u4e32\u884c\u65b9\u5f0f\uff1a<\/strong><\/p>\n

int sum = 0;\nfor (int i : list) {\n    sum += i;\n}<\/pre>\n
\u5e76\u884c\u65b9\u5f0f\uff1a<\/strong><\/p>\n
int sum = list.parallelStream()\n    .reduce(0, (a, b) -> a + b);<\/pre>\n
\u7ed3\u679c\uff1a<\/strong><\/p>\n
\u5728\u5177\u6709 8 \u4e2a\u5185\u6838\u7684\u8ba1\u7b97\u673a\u4e0a\uff0c\u4e32\u884c\u65b9\u6cd5\u82b1\u8d39\u7684\u65f6\u95f4\u7ea6\u4e3a 5 \u79d2\uff0c\u800c\u5e76\u884c\u65b9\u6cd5\u4ec5\u82b1\u8d39\u7ea6 0.5 \u79d2\u3002<\/p>\n
\u4e3a\u4ec0\u4e48\u5e76\u884c\u6d41\u66f4\u5feb\uff1f<\/strong><\/p>\n
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    \n
  • \u5229\u7528\u4e86\u591a\u4e2a\u5904\u7406\u5185\u6838<\/li>\n
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    \u6700\u4f73\u5b9e\u8df5<\/strong><\/p>\n
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      \n
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    • \u786e\u4fdd\u6536\u96c6\u64cd\u4f5c\u662f\u7ebf\u7a0b\u5b89\u5168\u7684\u3002<\/li>\n<\/ul>\n
      \u7ed3\u8bba<\/strong><\/p>\n
      \u5168\u5c40\u8303\u56f4\u5e76\u884c\u6d41\u63d0\u4f9b\u4e86\u5728\u591a\u6838\u8ba1\u7b97\u673a\u4e0a\u63d0\u5347\u6548\u80fd\u7684\u5f3a\u5927\u5de5\u5177\u3002\u5bf9\u4e8e\u5927\u578b\u96c6\u5408\u548c\u8f7b\u91cf\u7ea7\u4efb\u52a1\uff0c\u4f7f\u7528\u5e76\u884c\u6d41\u53ef\u4ee5\u663e\u7740\u63d0\u9ad8\u6027\u80fd\u3002<\/p>\n
      \u4ee5\u4e0a\u5c31\u662f\u300a\u5168\u5c40\u8303\u56f4\u5e76\u884c\u6d41\u5982\u4f55\u63d0\u5347\u6548\u80fd\u300b\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u5173\u4e8e\u5168\u5c40\u8303\u56f4,\u5e76\u884c\u6d41,\u6548\u80fd\u63d0\u5347\u7684\u8d44\u6599\u8bf7\u5173\u6ce8\u516c\u4f17\u53f7\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
      \u5168\u5c40\u8303\u56f4\u5e76\u884c\u6d41\u5982\u4f55\u63d0\u5347\u6548\u80fd \u6700\u8fd1...<\/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-202736","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202736","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=202736"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202736\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=202736"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=202736"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=202736"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}