{"id":4047,"date":"2025-06-04T11:20:11","date_gmt":"2025-06-05T04:02:11","guid":{"rendered":"https:\/\/badgameshow.com\/steven\/?p=4047"},"modified":"2025-06-05T11:20:11","modified_gmt":"2025-06-05T04:02:11","slug":"%e5%ad%b8%e7%bf%92%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8swift%e4%b8%ad%e7%9a%84%e7%b6%b2%e7%b5%a1%e7%a8%8b%e5%ba%8f%e8%a8%ad%e8%a8%88%ef%bc%9agcd%e3%80%81nsoperation%e3%80%81nsthread%e5%92%8cpthread","status":"publish","type":"post","link":"https:\/\/badgameshow.com\/steven\/swift\/%e5%ad%b8%e7%bf%92%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8swift%e4%b8%ad%e7%9a%84%e7%b6%b2%e7%b5%a1%e7%a8%8b%e5%ba%8f%e8%a8%ad%e8%a8%88%ef%bc%9agcd%e3%80%81nsoperation%e3%80%81nsthread%e5%92%8cpthread\/","title":{"rendered":"\u6700\u65b0\u7684 Swift \u7db2\u8def\u7a0b\u5f0f\u8a2d\u8a08\u6559\u5b78\uff1aGCD\u3001NSOperation\u3001NSThread \u8207 pthread"},"content":{"rendered":"<p><meta name=\"keywords\" content=\"Swift, GCD, GrandCentralDispatch, NSOperation, NSOperationQueue, NSThread, pthread\"><\/p>\n<h1>\u5b78\u7fd2\u4f7f\u7528 Swift \u9032\u884c\u7db2\u8def\u7a0b\u5f0f\u8a2d\u8a08<\/h1>\n<p>Swift \u662f\u4e00\u7a2e\u73fe\u4ee3\u5316\u7684\u7de8\u7a0b\u8a9e\u8a00\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u958b\u767c iOS \u548c macOS \u61c9\u7528\u7a0b\u5f0f\u3002\u5728 Swift \u4e2d\uff0c\u7db2\u8def\u7a0b\u5f0f\u8a2d\u8a08\u662f\u958b\u767c\u7db2\u8def\u61c9\u7528\u7a0b\u5f0f\u7684\u95dc\u9375\u3002\u672c\u7bc7\u6587\u7ae0\u5c07\u6df1\u5165\u63a2\u8a0e\u5982\u4f55\u5728 Swift \u4e2d\u5be6\u73fe\u591a\u7dda\u7a0b\u7de8\u7a0b\uff0c\u4e3b\u8981\u6db5\u84cb GCD\uff08Grand Central Dispatch\uff09\u3001NSOperation\u3001NSThread \u4ee5\u53ca pthread \u7684\u4f7f\u7528\u65b9\u6cd5\u3002<\/p>\n<h2>\u4f7f\u7528 GCD\uff08Grand Central Dispatch\uff09\u5be6\u73fe\u591a\u7dda\u7a0b\u7de8\u7a0b<\/h2>\n<p>GCD \u662f Apple \u63d0\u4f9b\u7684\u4e00\u500b\u5f37\u5927\u5de5\u5177\u4f86\u7c21\u5316\u591a\u7dda\u7a0b\u7de8\u7a0b\u7684\u904e\u7a0b\u3002\u5b83\u80fd\u5920\u6709\u6548\u7ba1\u7406\u591a\u500b\u4efb\u52d9\uff0c\u4e26\u5145\u5206\u5229\u7528\u591a\u6838\u8655\u7406\u5668\u7684\u8cc7\u6e90\u3002\u4ee5\u4e0b\u662f\u5982\u4f55\u5728 Swift \u4e2d\u4f7f\u7528 GCD \u7684\u4e00\u500b\u5be6\u4f5c\u7bc4\u4f8b\uff1a<\/p>\n<pre class=\"brush: swift\">\n\/\/ \u5275\u5efa\u4e00\u500b\u5168\u5c40\u7684\u4f47\u5217\nlet queue = DispatchQueue.global()\n\n\/\/ \u5275\u5efa\u4e00\u500b\u4efb\u52d9\nlet task = {\n    print(\"\u57f7\u884c\u4efb\u52d9\")\n}\n\n\/\/ \u5c07\u4efb\u52d9\u6dfb\u52a0\u5230\u4f47\u5217\u4e2d\uff0c\u4e26\u975e\u963b\u585e\u4e3b\u7dda\u7a0b\nqueue.async {\n    task()\n}\n<\/pre>\n<p>\u5728\u9019\u500b\u7bc4\u4f8b\u4e2d\uff0c\u6211\u5011\u5275\u5efa\u4e86\u4e00\u500b\u5168\u5c40\u4f47\u5217\u4e26\u5c07\u4efb\u52d9\u7570\u6b65\u57f7\u884c\uff0c\u9019\u6a23\u4e0d\u6703\u963b\u585e\u4e3b\u7dda\u7a0b\uff0c\u78ba\u4fdd\u61c9\u7528\u7a0b\u5f0f\u7684\u6d41\u66a2\u5ea6\u3002<\/p>\n<h2>\u4f7f\u7528 NSOperation \u548c NSOperationQueue \u985e\u5be6\u73fe\u591a\u7dda\u7a0b\u7de8\u7a0b<\/h2>\n<p>NSOperation \u548c NSOperationQueue \u662f\u66f4\u9ad8\u968e\u7684 API\uff0c\u63d0\u4f9b\u4e86\u66f4\u9748\u6d3b\u7684\u591a\u7dda\u7a0b\u63a7\u5236\u3002\u9019\u4e9b\u985e\u5225\u8b93\u6211\u5011\u80fd\u5920\u7ba1\u7406\u4efb\u52d9\u7684\u4f9d\u8cf4\u6027\u8207\u57f7\u884c\u9806\u5e8f\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u793a\u4f8b\uff1a<\/p>\n<pre class=\"brush: swift\">\n\/\/ \u5275\u5efa\u4e00\u500b\u4efb\u52d9\nlet task = BlockOperation {\n    print(\"\u57f7\u884c\u4efb\u52d9\")\n}\n\n\/\/ \u5275\u5efa\u4e00\u500b\u4f47\u5217\nlet queue = OperationQueue()\n\n\/\/ \u5c07\u4efb\u52d9\u6dfb\u52a0\u5230\u4f47\u5217\u4e2d\nqueue.addOperation(task)\n<\/pre>\n<p>\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0c\u6211\u5011\u5275\u5efa\u4e86\u4e00\u500b `BlockOperation` \u4e26\u5c07\u5176\u6dfb\u52a0\u5230\u64cd\u4f5c\u4f47\u5217\u4e2d\u3002\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd\u4efb\u52d9\u5728\u4f47\u5217\u4e2d\u7684\u57f7\u884c\u9806\u5e8f\u3002<\/p>\n<h2>\u4f7f\u7528 NSThread \u985e\u5be6\u73fe\u591a\u7dda\u7a0b\u7de8\u7a0b<\/h2>\n<p>NSThread \u63d0\u4f9b\u4e86\u5c0d\u7dda\u7a0b\u7684\u4f4e\u968e\u63a7\u5236\uff0c\u8b93\u958b\u767c\u8005\u53ef\u4ee5\u76f4\u63a5\u64cd\u63a7\u7dda\u7a0b\u7684\u751f\u547d\u9031\u671f\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528 NSThread \u7684\u793a\u4f8b\uff1a<\/p>\n<pre class=\"brush: swift\">\n\/\/ \u5275\u5efa\u4e00\u500b\u4efb\u52d9\nlet task = {\n    print(\"\u57f7\u884c\u4efb\u52d9\")\n}\n\n\/\/ \u5275\u5efa\u4e26\u555f\u52d5\u4e00\u500b\u7dda\u7a0b\nlet thread = Thread {\n    task()\n}\nthread.start()\n<\/pre>\n<p>\u9019\u500b\u7bc4\u4f8b\u5c55\u793a\u4e86\u5982\u4f55\u5275\u5efa\u548c\u555f\u52d5\u4e00\u500b\u7dda\u7a0b\uff0c\u8b93\u6211\u5011\u53ef\u4ee5\u5728\u591a\u7dda\u7a0b\u74b0\u5883\u4e2d\u57f7\u884c\u4efb\u52d9\u3002<\/p>\n<h2>\u4f7f\u7528 pthread \u5eab\u5be6\u73fe\u591a\u7dda\u7a0b\u7de8\u7a0b<\/h2>\n<p>pthread \u662f\u4e00\u500b\u4f4e\u968e\u7684 C \u8a9e\u8a00\u5eab\uff0c\u63d0\u4f9b\u4e86\u5c0d\u7dda\u7a0b\u7684\u7d30\u7dfb\u63a7\u5236\u3002\u5728 Swift \u4e2d\uff0c\u6211\u5011\u53ef\u4ee5\u900f\u904e C \u51fd\u6578\u4f86\u4f7f\u7528 pthread\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u5be6\u4f5c\u7bc4\u4f8b\uff1a<\/p>\n<pre class=\"brush: swift\">\n\/\/ \u5275\u5efa\u4e00\u500b\u4efb\u52d9\nlet task: @convention(c) (UnsafeMutableRawPointer?) -> Void = { _ in\n    print(\"\u57f7\u884c\u4efb\u52d9\")\n}\n\n\/\/ \u5275\u5efa\u4e00\u500b\u7dda\u7a0b\nvar thread: pthread_t?\n\n\/\/ \u5c07\u4efb\u52d9\u6dfb\u52a0\u5230\u7dda\u7a0b\u4e2d\npthread_create(&thread, nil, task, nil)\n\n\/\/ \u7b49\u5f85\u7dda\u7a0b\u5b8c\u6210\npthread_join(thread!, nil)\n<\/pre>\n<p>\u5728\u9019\u500b\u7bc4\u4f8b\u4e2d\uff0c\u6211\u5011\u4f7f\u7528 pthread \u51fd\u6578\u4f86\u5275\u5efa\u548c\u7ba1\u7406\u7dda\u7a0b\u3002\u9019\u7a2e\u65b9\u6cd5\u96d6\u7136\u9748\u6d3b\uff0c\u4f46\u8f03\u70ba\u8907\u96dc\uff0c\u5efa\u8b70\u5728\u9700\u8981\u7cbe\u7d30\u63a7\u5236\u7dda\u7a0b\u6642\u4f7f\u7528\u3002<\/p>\n<h2>\u7e3d\u7d50<\/h2>\n<p>\u5728\u672c\u6587\u4e2d\uff0c\u6211\u5011\u4ecb\u7d39\u4e86 Swift \u4e2d\u7684\u591a\u7dda\u7a0b\u7de8\u7a0b\u6280\u8853\uff0c\u5305\u62ec GCD\u3001NSOperation\u3001NSThread \u548c pthread\u3002\u9019\u4e9b\u5de5\u5177\u5404\u6709\u512a\u7f3a\u9ede\uff0c\u6839\u64da\u4e0d\u540c\u7684\u9700\u6c42\u9078\u64c7\u5408\u9069\u7684\u6280\u8853\u5c07\u80fd\u63d0\u5347\u61c9\u7528\u7a0b\u5f0f\u7684\u6548\u80fd\u8207\u7528\u6236\u9ad4\u9a57\u3002<\/p>\n<h2>Q&#038;A\uff08\u5e38\u898b\u554f\u984c\u89e3\u7b54\uff09<\/h2>\n<h3>1. GCD \u548c NSOperation \u6709\u4ec0\u9ebc\u4e0d\u540c\uff1f<\/h3>\n<p>GCD \u662f\u8f03\u4f4e\u968e\u7684 API\uff0c\u5c08\u6ce8\u65bc\u7c21\u5316\u4efb\u52d9\u7684\u4f47\u5217\u8655\u7406\uff0c\u800c NSOperation \u63d0\u4f9b\u4e86\u66f4\u9ad8\u968e\u7684\u529f\u80fd\uff0c\u5982\u4efb\u52d9\u4f9d\u8cf4\u6027\u548c\u53d6\u6d88\u64cd\u4f5c\u3002<\/p>\n<h3>2. \u6211\u61c9\u8a72\u5728\u4ec0\u9ebc\u60c5\u6cc1\u4e0b\u4f7f\u7528 NSThread\uff1f<\/h3>\n<p>NSThread \u9069\u5408\u9700\u8981\u7cbe\u7d30\u63a7\u5236\u7dda\u7a0b\u7684\u60c5\u5883\uff0c\u4f8b\u5982\u5728\u9700\u8981\u76f4\u63a5\u7ba1\u7406\u7dda\u7a0b\u751f\u547d\u9031\u671f\u7684\u60c5\u6cc1\u4e0b\u3002<\/p>\n<h3>3. \u70ba\u4ec0\u9ebc\u8981\u4f7f\u7528 pthread \u800c\u4e0d\u662f Swift \u7684\u5167\u5efa\u5de5\u5177\uff1f<\/h3>\n<p>pthread \u63d0\u4f9b\u4e86\u66f4\u5e95\u5c64\u7684\u63a7\u5236\uff0c\u9069\u5408\u9700\u8981\u76f4\u63a5\u64cd\u4f5c\u5167\u5b58\u6216\u8207 C \u8a9e\u8a00\u4ee3\u78bc\u4ea4\u4e92\u7684\u5834\u5408\uff0c\u4f46\u5728\u5927\u591a\u6578\u60c5\u6cc1\u4e0b\uff0c\u5efa\u8b70\u4f7f\u7528 GCD \u6216 NSOperation \u4f86\u7c21\u5316\u958b\u767c\u904e\u7a0b\u3002<\/h3>\n<p>&#8212;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6587\u7ae0\u6458\u8981\uff1a\u672c\u6587\u5c07\u4ecb\u7d39\u5982\u4f55\u4f7f\u7528Swift\u4e2d\u7684\u7db2\u7d61\u7a0b\u5e8f\u8a2d\u8a08\uff0c\u5305\u62ec\u4f7f\u7528GCD\uff08GrandCentralDispatch\uff09\u3001NSOperation\u548cNSOperationQueue\u985e\u3001NSThread\u985e\u4ee5\u53capthread\u5eab\u4f86\u5be6\u73fe\u591a\u7dda\u7a0b\u7a0b\u5e8f\u8a2d\u8a08\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[174,5],"tags":[173,9],"class_list":["post-4047","post","type-post","status-publish","format-standard","hentry","category-ios","category-swift","tag-ios","tag-swift"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack-related-posts":[],"jetpack_shortlink":"https:\/\/wp.me\/pcFK27-13h","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/4047","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/comments?post=4047"}],"version-history":[{"count":1,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/4047\/revisions"}],"predecessor-version":[{"id":4048,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/4047\/revisions\/4048"}],"wp:attachment":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/media?parent=4047"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/categories?post=4047"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/tags?post=4047"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}