{"id":853,"date":"2021-09-13T16:33:45","date_gmt":"2021-09-13T08:33:45","guid":{"rendered":"http:\/\/www.wayln.com\/?p=853"},"modified":"2021-09-13T16:33:45","modified_gmt":"2021-09-13T08:33:45","slug":"%e6%95%b0%e6%8d%ae%e6%b5%81%e5%9f%ba%e7%a1%80-%e5%85%b3%e8%81%94%e7%9a%84%e5%9d%97","status":"publish","type":"post","link":"https:\/\/www.wayln.com\/?p=853","title":{"rendered":"\u6570\u636e\u6d41\u57fa\u7840\u2014\u2014\u5173\u8054\u7684\u5757"},"content":{"rendered":"<div id=\"toc_container\" class=\"toc_transparent no_bullets\"><p class=\"toc_title\">Contents<\/p><ul class=\"toc_list\"><li><a href=\"#i\"><span class=\"toc_number toc_depth_1\">1<\/span> \u95ee\u9898<\/a><\/li><li><a href=\"#i-2\"><span class=\"toc_number toc_depth_1\">2<\/span> \u89e3\u51b3\u65b9\u6848<\/a><\/li><li><a href=\"#i-3\"><span class=\"toc_number toc_depth_1\">3<\/span> \u8ba8\u8bba<\/a><\/li><\/ul><\/div>\n<p>TPL\u6570\u636e\u6d41\u662f\u4e00\u4e2a\u5f3a\u5927\u7684\u5e93\uff0c\u901a\u8fc7\u5b83\u53ef\u4ee5\u521b\u5efa\u7f51\u683c\u6216\u7ba1\u9053\uff0c\u7136\u540e\u5f02\u6b65\u53d1\u9001\u6570\u636e\u3002\u6570\u636e\u6d41\u7684\u4ee3\u7801\u5177\u6709\u975e\u5e38\u660e\u663e\u7684\u58f0\u660e\u5f0f\u98ce\u683c\uff1a\u4e00\u822c\u6765\u8bf4\uff0c\u9996\u5148\u8981\u5b8c\u6574\u5b9a\u4e49\u7f51\u683c\uff0c\u7136\u540e\u5f00\u59cb\u5904\u7406\u6570\u636e\uff0c\u6700\u7ec8\u7f51\u683c\u6210\u4e3a\u4e00\u79cd\u4f9b\u6570\u636e\u6d41\u4e95\u7684\u7ed3\u6784\u3002<br \/>\n\u6bcf\u4e2a\u7f51\u683c\u5747\u7531\u82e5\u5e72\u4e2a\u5f7c\u6b64\u5173\u8054\u7684\u5757\u7ec4\u6210\uff0c\u72ec\u7acb\u7684\u5757\u5f88\u7b80\u5355\uff0c\u5e76\u4e14\u53ea\u8d1f\u8d23\u6570\u636e\u4e2d\u7684\u5355\u4e2a\u6b65\u9aa4\uff0c\u5f53\u5757\u5b8c\u6210\u4e86\u5bf9\u6570\u636e\u7684\u5904\u7406\u65f6\uff0c\u4ed6\u4f1a\u5c06\u7ed3\u679c\u4f20\u9012\u7ed9\u6240\u6709\u4e0e\u4e4b\u5173\u8054\u7684\u5757\u3002<br \/>\n\u82e5\u60f3\u4f7f\u7528TPL\u6570\u636e\u6d41\uff0c\u9700\u8981\u5728\u5e94\u7528\u7a0b\u5e8f\u4e2d\u5b89\u88c5System.Threading.Tasks.Dataflow\u8fd9\u4e2aNuGet\u5305\u3002<\/p>\n<h1><span id=\"i\">\u95ee\u9898<\/span><\/h1>\n<p>\u5047\u8bbe\u8981\u628a\u6570\u636e\u6d41\u5757\u5f7c\u6b64\u5173\u8054\u8d77\u6765\uff0c\u4ece\u800c\u521b\u5efa\u4e00\u4e2a\u7f51\u683c<\/p>\n<h1><span id=\"i-2\">\u89e3\u51b3\u65b9\u6848<\/span><\/h1>\n<p>\u7531TPL\u6570\u636e\u6d41\u63d0\u4f9b\u7684\u5757\u53ea\u5b9a\u4e49\u4e86\u6700\u57fa\u672c\u7684\u65b9\u6cd5\uff0c\u8bb8\u591a\u5b9e\u7528\u7684TPL\u6570\u636e\u6d41\u65b9\u6cd5\u5176\u5b9e\u662f\u6269\u5c55\u65b9\u6cd5\u3002LinkTo\u6269\u5c55\u65b9\u6cd5\u4e3a\u5173\u8054\u6570\u636e\u6d41\u63d0\u4f9b\u4e86\u4e00\u79cd\u7b80\u5355\u65b9\u5f0f<\/p>\n<pre><code class=\"language-CSharp line-numbers\">var multiplyBlock=new TransformBlock&lt;int,int&gt;(item=&gt;item*2);\nvar subtractBlock=new TransformBlock&lt;int,int&gt;(item=&gt;item-2);\n\/\/\u5173\u8054\u4e4b\u540e\uff0c\u4ecemultiplyBlock\u79bb\u5f00\u7684\u503c\uff0c\u4f1a\u8fdb\u5165subtractBlock\nmultiplyBlock.LinkTo(subtractBlock);\n<\/code><\/pre>\n<p>\u5728\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u5173\u8054\u7684\u6570\u636e\u5757\u53ea\u4f20\u64ad\u6570\u636e\uff0c\u4ed6\u4eec\u5e76\u4e0d\u4f1a\u4f20\u64ad\u5b8c\u6210\u72b6\u6001\uff08\u6216\u8005\u9519\u8bef\uff09\u3002\u5728\u9762\u5bf9\u7ba1\u9053\u7b49\u7ebf\u6027\u5f97\u5230\u6570\u636e\u6d41\u65f6\uff0c\u53ef\u80fd\u9700\u8981\u4f20\u64ad\u5b8c\u6210\u72b6\u6001\uff0c\u82e5\u8981\u4f20\u64ad\u5b8c\u6210\u72b6\u6001\uff08\u6216\u9519\u8bef\uff09,\u53ef\u4ee5\u8bbe\u7f6e\u8fde\u63a5\u4e2d\u7684PropagateCompletion\u9009\u9879<\/p>\n<pre><code class=\"language-CSharp line-numbers\">var multiplyBlock=new TransformBlock&lt;int,int&gt;(item=&gt;item*2);\nvar subtractBlock=new TransformBlock&lt;int,int&gt;(item=&gt;item-2);\nvar options=new DataflowLinkOptions{PrograteCompletion=true};\n\/\/\u5173\u8054\u4e4b\u540e\uff0c\u4ecemultiplyBlock\u79bb\u5f00\u7684\u503c\uff0c\u4f1a\u8fdb\u5165subtractBlock\nmultiplyBlock.LinkTo(subtractBlock);\n\/\/\u7b2c\u4e00\u4e2a\u6570\u636e\u6d41\u5757\u7684\u5b8c\u6210\u72b6\u6001\u4f1a\u81ea\u52a8\u4f20\u64ad\u5230\u7b2c\u4e8c\u4e2a\u6570\u636e\u6d41\u5757\nmultBlock.Complete();\nawait subtractBlock.Completion;\n<\/code><\/pre>\n<h1><span id=\"i-3\">\u8ba8\u8bba<\/span><\/h1>\n<p>\u4e00\u65e6\u5173\u8054\u8d77\u6765\uff0c\u6570\u636e\u5c31\u4f1a\u81ea\u52a8\u5730\u4ece\u6e90\u5757\u6d41\u81f3\u76ee\u6807\u5757\u3002PropagateCompletion\u9009\u9879\u4f1a\u5c06\u6570\u636e\u8054\u901a\u5b8c\u6210\u72b6\u6001\u4e00\u8d77\u4f20\u64ad\u51fa\u53bb\u3002\u5982\u679c\u4f20\u64ad\u5b8c\u6210\u72b6\u6001\u7ba1\u9053\u5f88\u957f\uff0c\u90a3\u4e48\u539f\u59cb\u9519\u8bef\u53ef\u80fd\u88ab\u5d4c\u5957\u5728\u591a\u4e2aAggregateException\u5b9e\u4f8b\u4e2d\u3002Flatten\u80fd\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\u534f\u52a9\u5904\u7406\u9519\u8bef\u3002<br \/>\n\u5173\u8054\u6570\u636e\u6d41\u5757\u7684\u65b9\u5f0f\u591a\u79cd\u591a\u6837\u3002\u7f51\u683c\u53ef\u4ee5\u5305\u542b\u5206\u53c9\u3001\u8fde\u63a5\uff0c\u751a\u81f3\u5faa\u73af\u3002\u4f46\u662f\uff0c\u7b80\u5355\u7684\u5148\u884c\u7ba1\u9053\u8db3\u4ee5\u5e94\u4ed8\u5927\u591a\u6570\u573a\u666f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Contents1 \u95ee\u98982 \u89e3\u51b3\u65b9\u68483 \u8ba8\u8bba TPL\u6570\u636e\u6d41\u662f\u4e00\u4e2a\u5f3a\u5927\u7684\u5e93\uff0c\u901a\u8fc7\u5b83\u53ef\u4ee5\u521b\u5efa\u7f51\u683c\u6216\u7ba1\u9053\uff0c\u7136\u540e\u5f02\u6b65\u53d1 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4,41,2],"tags":[],"class_list":["post-853","post","type-post","status-publish","format-standard","hentry","category-c","category-41","category-2"],"_links":{"self":[{"href":"https:\/\/www.wayln.com\/index.php?rest_route=\/wp\/v2\/posts\/853","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.wayln.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.wayln.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.wayln.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.wayln.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=853"}],"version-history":[{"count":1,"href":"https:\/\/www.wayln.com\/index.php?rest_route=\/wp\/v2\/posts\/853\/revisions"}],"predecessor-version":[{"id":854,"href":"https:\/\/www.wayln.com\/index.php?rest_route=\/wp\/v2\/posts\/853\/revisions\/854"}],"wp:attachment":[{"href":"https:\/\/www.wayln.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=853"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.wayln.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=853"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.wayln.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=853"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}