{"id":4691,"date":"2020-10-26T20:57:01","date_gmt":"2020-10-26T12:57:01","guid":{"rendered":"https:\/\/damogame.cn\/wordpress\/?p=4691"},"modified":"2020-10-26T20:57:01","modified_gmt":"2020-10-26T12:57:01","slug":"tcmalloc%e5%8e%9f%e7%90%86","status":"publish","type":"post","link":"https:\/\/i007.cc\/wordpress\/archives\/4691","title":{"rendered":"tcmalloc\u539f\u7406"},"content":{"rendered":"<p class=\"_1RuRku\"><a href=\"https:\/\/www.jianshu.com\/p\/7c55fbdef679\">\u539f\u6587\u5730\u5740<\/a><\/p>\n<p>&nbsp;<\/p>\n<article class=\"_2rhmJa\">1\u3001\u52a8\u673a<\/p>\n<p>tcmalloc\u8981\u6bd4glibc2.3 malloc\uff08\u57fa\u4e8eptmalloc2\u5b9e\u73b0\uff09\u8981\u5feb\uff0cptmalloc2\u8c03\u7528\u4e00\u6b21malloc+free\u5927\u6982\u9700\u8981300ns\uff082.8GHz P4\uff09\uff0c\u800ctcmalloc\u6267\u884c\u540c\u6837\u7684\u64cd\u4f5c\u4ec5\u970050ns\u3002<\/p>\n<p>tcmalloc\u964d\u4f4e\u4e86\u5728\u591a\u7ebf\u7a0b\u7a0b\u5e8f\u4e2d\u7684\u9501\u7ade\u4e89\u60c5\u51b5\u3002\u5bf9\u4e8e\u5c0f\u5bf9\u8c61\uff0ctcmalloc\u57fa\u672c\u8fbe\u5230\u4e86\u96f6\u7ade\u4e89\uff08\u7b14\u8005\u6ce8\uff1a\u4eceCentralHeap\u7533\u8bf7\u4e00\u6b21\u5185\u5b58\uff0c\u8db3\u4ee5\u652f\u6491\u5355\u7ebf\u7a0b\u957f\u671f\u4f7f\u7528\uff0c\u800c\u4e0d\u9700\u8981\u518d\u6b21\u5411CentralHeap\u7533\u8bf7\u5185\u5b58\uff09\u3002\u5bf9\u4e8e\u5927\u5bf9\u8c61\uff0ctcmalloc\u5c1d\u8bd5\u4f7f\u7528\u7ec6\u7c92\u5ea6\u4e14\u9ad8\u6548\u7684\u81ea\u65cb\u9501\uff08\u7b14\u8005\u6ce8\uff1a\u6ca1\u770b\u61c2\uff0c\u9700\u8981\u7ec6\u770b\u4ee3\u7801\uff09<\/p>\n<p>tcmalloc\u7684\u53e6\u4e00\u4e2a\u597d\u5904\u5728\u4e8e\u5c0f\u5bf9\u8c61\u7684\u7a7a\u95f4\u6548\u7387\u9ad8\u3002\u4f8b\u5982\uff0c\u5206\u914dN\u4e2a8\u5b57\u8282\u5bf9\u8c61\u53ef\u80fd\u8981\u4f7f\u7528\u5927\u7ea68N*1.01\u5b57\u8282\u7684\u7a7a\u95f4\uff0c\u5373\u591a\u75281%\u7684\u5185\u5b58\u7a7a\u95f4\u3002\u800cptmalloc2\u4f1a\u4e3a\u6bcf\u4e2a\u5bf9\u8c61\u4e00\u4e2a4\u5b57\u8282\u7684header\uff0c\u90a3\u4e48\u5047\u5982\u8981\u6c428\u5b57\u8282\u5bf9\u9f50\uff0c\u90a3\u4e48\u6700\u7ec8N\u4e2a8\u5b57\u8282\u5bf9\u8c61\u9700\u8981\u5360\u752816N\u5b57\u8282\u7684\u7a7a\u95f4\u3002<\/p>\n<p>2\u3001\u4f7f\u7528\u65b9\u6cd5<\/p>\n<p>\u8981\u4f7f\u7528tcmalloc\uff0c\u53ea\u8981\u5c06tcmalloc\u901a\u8fc7-ltcmalloc\u8fde\u63a5\u5230\u5e94\u7528\u7a0b\u5e8f\u5373\u53ef\u3002<\/p>\n<p>\u4e5f\u53ef\u4ee5\u4f7f\u7528LD_PRELOAD\u5728\u4e0d\u662f\u4f60\u81ea\u5df1\u7f16\u8bd1\u7684\u5e94\u7528\u7a0b\u5e8f\u4e2d\u4f7f\u7528\uff1a<\/p>\n<p>$ LD_PRELOAD=&#8221;\/usr\/lib\/libtcmalloc.so&#8221;<\/p>\n<p>tcmalloc\u8fd8\u5305\u542b\u4e00\u4e2a\u5806\u68c0\u67e5\u5668\uff08heap checker\uff09\u548c\u5806\u6d4b\u91cf\u5668\uff08heap profiler\uff09\u3002<\/p>\n<p>\u5982\u679c\u4f60\u60f3\u94fe\u63a5\u4e0d\u5305\u542bheap checker\u548cheap profiler\u7684tcmalloc\uff08\u6bd4\u5982\u4e3a\u4e86\u51cf\u5c11\u9759\u6001\u4e8c\u8fdb\u5236\u6587\u4ef6\u7684\u5927\u5c0f\uff09\uff0c\u4f60\u5e94\u8be5\u8fde\u63a5libtcmalloc_minimal<\/p>\n<p>3\u3001\u7efc\u8ff0<br \/>\ntcmalloc\u4e3a\u6bcf\u4e2a\u7ebf\u7a0b\u5206\u914d\u4e00\u4e2athread-local cache\uff0c\u5c0f\u5bf9\u8c61\u7684\u5206\u914d\u76f4\u63a5\u4ecethread-local cache\u4e2d\u5206\u914d\u3002\u6839\u636e\u9700\u8981\u5c06\u5bf9\u8c61\u4eceCentralHeap\u4e2d\u79fb\u52a8\u5230thread-local cache\uff0c\u540c\u65f6\u5b9a\u671f\u7684\u7528\u5783\u573e\u56de\u6536\u5668\u628a\u5185\u5b58\u4ecethread-local cache\u56de\u6536\u5230Central free list\u4e2d\u3002<\/p>\n<div class=\"image-package\">\n<div class=\"image-container\">\n<div class=\"image-container-fill\"><\/div>\n<div class=\"image-view\" data-width=\"377\" data-height=\"177\"><img decoding=\"async\" class=\"\" src=\"https:\/\/upload-images.jianshu.io\/upload_images\/8677833-263ba4b00363ab9b.png?imageMogr2\/auto-orient\/strip|imageView2\/2\/w\/377\/format\/webp\" data-original-src=\"\/\/upload-images.jianshu.io\/upload_images\/8677833-263ba4b00363ab9b.png\" data-original-width=\"377\" data-original-height=\"177\" data-original-format=\"image\/png\" data-original-filesize=\"7934\" data-image-index=\"0\" \/><\/div>\n<\/div>\n<div class=\"image-caption\">image.png<\/div>\n<\/div>\n<p>tcmalloc\u5c06&lt;=32k\u7684\u5bf9\u8c61\u5f52\u7c7b\u4e3a\u5c0f\u5bf9\u8c61\uff0c\u5c0f\u5bf9\u8c61\u662f\u4ecethread-local cache\u4e2d\u5206\u914d\u7684\u3002&gt;32k\u7684\u79f0\u4e3a\u5927\u5bf9\u8c61\uff0c\u5927\u5bf9\u8c61\u662f\u76f4\u63a5\u4f7f\u7528\u9875\u7ea7\u5206\u914d\u5668\uff08page-level allocator\uff09\u4eceCentral page Heap\u4e2d\u8fdb\u884c\u5206\u914d\uff0c\u5373\u4e00\u4e2a\u5927\u5bf9\u8c61\u603b\u662f\u6309\u9875\u5bf9\u9f50\u7684\u3002\uff08\u7b14\u8005\u6ce8\uff1a\u5927\u5bf9\u8c61\u7684\u5206\u914d\u53c8\u662f\u5982\u4f55\u964d\u4f4e\u591a\u7ebf\u7a0b\u7ade\u4e89\u7684\u60c5\u51b5\u7684\uff1f\uff09<\/p>\n<p>4\u3001\u5c0f\u5bf9\u8c61\u5206\u914d<\/p>\n<p>\u6bcf\u4e2a\u5c0f\u5bf9\u8c61\u7684\u5927\u5c0f\u90fd\u4f1a\u88ab\u6620\u5c04\u5230\u4e0e\u4e4b\u63a5\u8fd1\u7684170\u4e2a\u53ef\u5206\u914d\u7684\u5c3a\u5bf8\u7c7b\u522b\u4e2d\uff08allocatable size-classes\uff09\u3002\u6bd4\u5982\u6240\u6709\u5927\u5c0f\u5728961~1024\u5b57\u8282\u4e4b\u95f4\u7684\u5c0f\u5bf9\u8c61\u90fd\u4f1a\u88ab\u5f52\u6574\u4e3a1024\u5b57\u8282\u3002\u5c3a\u5bf8\u7c7b\u522b\u9694\u5f00\u89c4\u5219\uff1a\u8f83\u5c0f\u7684\u5c3a\u5bf8\u76f8\u5dee8\u5b57\u8282\uff0c\u8f83\u5927\u7684\u5c3a\u5bf8\u76f8\u5dee16\u5b57\u8282\uff0c\u66f4\u5927\u7684\u5c3a\u5bf8\u76f8\u5dee32\u5b57\u8282\uff0c\u4ee5\u6b64\u7c7b\u63a8\uff0c\u6700\u5927\u7684\u5c3a\u5bf8\u95f4\u9694\u4e3a256\u5b57\u8282\u3002<\/p>\n<p>\u4e00\u4e2athread-local cache\u5305\u542b\u5404size-class\u7684\u5bf9\u8c61\u7ec4\u6210\u7684\u5355\u94fe\u8868\uff0c\u5982\u56fe\u6240\u793a\uff1a<\/p>\n<div class=\"image-package\">\n<div class=\"image-container\">\n<div class=\"image-container-fill\"><\/div>\n<div class=\"image-view\" data-width=\"377\" data-height=\"177\"><img decoding=\"async\" class=\"\" src=\"https:\/\/upload-images.jianshu.io\/upload_images\/8677833-7b0d7f00e3db4815.png?imageMogr2\/auto-orient\/strip|imageView2\/2\/w\/377\/format\/webp\" data-original-src=\"\/\/upload-images.jianshu.io\/upload_images\/8677833-7b0d7f00e3db4815.png\" data-original-width=\"377\" data-original-height=\"177\" data-original-format=\"image\/png\" data-original-filesize=\"7934\" data-image-index=\"1\" \/><\/div>\n<\/div>\n<div class=\"image-caption\">image.png<\/div>\n<\/div>\n<p>\u5f53\u5206\u914d\u5c0f\u5bf9\u8c61\u65f6\uff1a<\/p>\n<ol>\n<li>\u5c06\u5176\u6620\u5c04\u5230\u5bf9\u5e94\u7684size-class\uff1b<\/li>\n<li>\u5728\u5f53\u524d\u7ebf\u7a0b\u7684thread-local cache\u4e2d\u67e5\u627e\u5bf9\u5e94size-class\u7684free-list\uff0c\u5982\u679cfree list\u975e\u7a7a\uff0c\u90a3\u4e48\u5c06\u94fe\u8868\u4e0a\u7b2c\u4e00\u4e2a\u5bf9\u8c61\u79fb\u9664\u5e76\u8fd4\u56de\u7ed9\u5e94\u7528\uff0c\u8fd9\u6837tcmalloc\u7684\u5185\u5b58\u5206\u914d\u4e0d\u4f1a\u4ea7\u751f\u4efb\u4f55\u9501\u7ade\u4e89\u3002\u8fd9\u6837\u6781\u5927\u7684\u63d0\u9ad8\u4e86\u5185\u5b58\u5206\u914d\u901f\u5ea6\uff0c\u56e0\u4e3alock\/unlock\u64cd\u4f5c\u5728\u4e00\u4e2a2.8GHz Xeon\u4e0a\u5927\u7ea6\u9700\u8981100ns\uff1b<\/li>\n<li>\u5982\u679cfree list\u4e3a\u7a7a\uff0c\u90a3\u4e48\u5c06\u4eceCentral free list\u4e2d\u6279\u91cf\u83b7\u53d6\u4e00\u6279\u5bf9\u5e94size-class\u7684\u5bf9\u8c61\uff0c\u5e76\u5c06\u5176\u6dfb\u52a0\u5230thread-local cache\u7684\u5bf9\u5e94\u94fe\u8868\u4e0a\uff0c\u540e\u7eed\u540c2\u3002\uff08\u7b14\u8005\u6ce8\uff1a\u6b64\u5904\u5bf9CentralHeap\u7684\u8bbf\u95ee\u9700\u8981\u52a0\u9501\uff09<\/li>\n<li>\u5982\u679cCentral free list\u4e5f\u4e3a\u7a7a\uff0c\u90a3\u4e48\u5c06\u4ece\u4e2d\u592e\u9875\u5206\u914d\u5668\uff08central page allocatpr\uff09\u5206\u914d\u4e00\u7cfb\u5217\u9875\u9762\uff08\u5bf9\u5e94span\uff09\uff0c\u5c06\u5176\u5206\u5272\u6210\u4e00\u7cfb\u5217\u5bf9\u5e94size-class\u7684\u5bf9\u8c61\uff0c\u5e76\u5c06\u65b0\u5206\u914d\u7684\u5bf9\u8c61\u6dfb\u52a0\u5230CentralHeap\u7684\u94fe\u8868\u4e0a\uff0c\u540e\u7eed\u540c3\u3002\uff08\u7b14\u8005\u6ce8\uff1a\u6b64\u5904\u5bf9central page allocatpr\u7684\u8bbf\u95ee\u4e5f\u9700\u8981\u52a0\u9501\uff09<\/li>\n<\/ol>\n<p>5\u3001\u5927\u5bf9\u8c61\u5206\u914d<\/p>\n<p>\u5927\u5bf9\u8c61\uff08&gt;32k\uff09\u7531\u4e2d\u592e\u9875\u5806\uff08central page heap\uff09\u5206\u914d\uff0c\u4e2d\u592e\u9875\u5806\u662f\u7531\u7a7a\u95f2\u5185\u5b58\u9875\u8868\u7ec4\u6210\u7684\u6570\u7ec4\uff0c\u5982\u4e0b\u56fe\u6240\u793a\u3002<\/p>\n<div class=\"image-package\">\n<div class=\"image-container\">\n<div class=\"image-container-fill\"><\/div>\n<div class=\"image-view\" data-width=\"388\" data-height=\"244\"><img decoding=\"async\" class=\"\" src=\"https:\/\/upload-images.jianshu.io\/upload_images\/8677833-b682e16da9b6cf1b.png?imageMogr2\/auto-orient\/strip|imageView2\/2\/w\/388\/format\/webp\" data-original-src=\"\/\/upload-images.jianshu.io\/upload_images\/8677833-b682e16da9b6cf1b.png\" data-original-width=\"388\" data-original-height=\"244\" data-original-format=\"image\/png\" data-original-filesize=\"12523\" data-image-index=\"2\" \/><\/div>\n<\/div>\n<div class=\"image-caption\">14093515_rVVx.jpg.png<\/div>\n<\/div>\n<p>\u5206\u914dk\u4e2a\u9875\u9762\uff1a\u9996\u5148\u5728\u5730k\u4e2a\u7a7a\u95f2\u5185\u5b58\u94fe\u8868\u4e0a\u67e5\u627e\uff0c\u5982\u679c\u8be5\u94fe\u8868\u4e3a\u7a7a\uff0c\u90a3\u4e48\u5c31\u5728\u4e0b\u4e00\u4e2a\u7a7a\u95f2\u5185\u5b58\u94fe\u8868\u4e2d\u67e5\u627e\uff0c\u4ee5\u6b64\u7c7b\u63a8\uff0c\u6700\u7ec8\u5c06\u5728\u6700\u540e\u7a7a\u95f2\u5185\u5b58\u94fe\u8868\u4e2d\u67e5\u627e\u3002\u5982\u679c\u8be5\u64cd\u4f5c\u4e5f\u5931\u8d25\uff0c\u90a3\u4e48\u5219\u5411\u7cfb\u7edf\u7533\u8bf7\u5185\u5b58\uff08\u7b14\u8005\u6ce8\uff1a\u4f7f\u7528sbrk\u3001mmap\u7b49\u5411OS\u7533\u8bf7\u5185\u5b58\uff09\u3002<\/p>\n<p>6\u3001Spans<\/p>\n<p>tcmalloc\u7ba1\u7406\u7684heap\u7531\u4e00\u7cfb\u5217page\u7ec4\u6210\uff0c\u4e00\u7cfb\u5217\u8fde\u7eed\u7684\u9875\u9762\u7531\u4e00\u4e2aspan\u5bf9\u8c61\u6765\u8868\u793a\u3002\u4e00\u4e2aspan\u53ef\u4ee5\u662f\u5df2\u88ab\u5206\u914d\u6216\u8005\u662f\u7a7a\u95f2\u7684\u3002\u5982\u679c\u662f\u7a7a\u95f2\u7684\uff0cspan\u4f1a\u662f\u4e00\u4e2a\u9875\u9762\u5806\u94fe\u8868\u4e2d\u7684\u4e00\u4e2a\u6761\u76ee\u3002\u5982\u679c\u5df2\u88ab\u5206\u914d\uff0c\u5b83\u4f1a\u6216\u8005\u662f\u4e00\u4e2a\u5df2\u7ecf\u88ab\u4f20\u9012\u7ed9\u5e94\u7528\u7a0b\u5e8f\u7684\u5927\u5bf9\u8c61\uff0c\u6216\u8005\u662f\u4e00\u4e2a\u5df2\u7ecf\u88ab\u5206\u5272\u6210\u4e00\u7cfb\u5217\u5c0f\u5bf9\u8c61\u7684\u4e00\u4e2a\u9875\u9762\u3002\u6ce8\u610f\uff0c\u5982\u679c\u88ab\u5206\u5272\u6210\u5c0f\u5bf9\u8c61\uff0c\u5bf9\u8c61\u7684\u5c3a\u5bf8\u4f1a\u88ab\u8bb0\u5f55\u5728span\u4e2d\u3002<\/p>\n<p>tcmalloc\u5229\u7528radix tree\u6765\u5b9e\u73b0\u4e00\u4e2acentral array\uff0c\u5176\u901a\u8fc7\u9875\u9762\u53f7\u7d22\u5f15\u6765\u627e\u5230\u8be5\u9875\u9762\u6240\u5c5e\u7684span\u5bf9\u8c61\uff08page-&gt;span\u6620\u5c04\uff09\uff0c\u5982\u4e0b\u56fe\u82cf\u6240\u793a\uff1a<\/p>\n<div class=\"image-package\">\n<div class=\"image-container\">\n<div class=\"image-container-fill\"><\/div>\n<div class=\"image-view\" data-width=\"429\" data-height=\"102\"><img decoding=\"async\" class=\"\" src=\"https:\/\/upload-images.jianshu.io\/upload_images\/8677833-99b881a620df921b.png?imageMogr2\/auto-orient\/strip|imageView2\/2\/w\/429\/format\/webp\" data-original-src=\"\/\/upload-images.jianshu.io\/upload_images\/8677833-99b881a620df921b.png\" data-original-width=\"429\" data-original-height=\"102\" data-original-format=\"image\/png\" data-original-filesize=\"5901\" data-image-index=\"3\" \/><\/div>\n<\/div>\n<div class=\"image-caption\">14093515_vqCg.jpg.png<\/div>\n<\/div>\n<p>7\u3001\u91ca\u653e<\/p>\n<p>\u5bf9\u4e00\u4e2a\u5bf9\u8c61\u91ca\u653e\u65f6\uff0c\u5148\u8ba1\u7b97\u5176\u9875\u9762\u53f7\uff08\u7b14\u8005\u6ce8\uff1aaddress &gt;&gt; 2\u83b7\u53d6\u9875\u9762\u53f7\uff09\uff0c\u5e76\u5728central array\u4e2d\u67e5\u627e\u5bf9\u5e94\u7684span\u3002span\u4e2d\u8bb0\u5f55\u4e86\u8be5\u5bf9\u8c61\u662f\u5927\u662f\u5c0f\uff0c\u5982\u679c\u662f\u5c0f\u5bf9\u8c61\u7684\u8bdd\u5c3a\u5bf8\u7c7b\u578b\u662f\u591a\u5c11\u3002<\/p>\n<p>\u5982\u679c\u662f\u5c0f\u5bf9\u8c61\uff0c\u5c06\u5176\u63d2\u5165\u5230\u5f53\u524d\u7ebf\u7a0bcache\u5bf9\u5e94\u7684\u7a7a\u95f2\u5185\u5b58\u94fe\u8868\u4e2d\u3002\u5982\u679c\u7ebf\u7a0bcache\u8d85\u8fc7\u4e86\u67d0\u4e2a\u9884\u5b9a\u7684\u5927\u5c0f\uff08\u9ed8\u8ba42M\uff09\uff0c\u90a3\u4e48\u4fbf\u8fd0\u884c\u5783\u573e\u56de\u6536\u5668\u5c06\u672a\u4f7f\u7528\u7684\u5bf9\u8c61\u4ece\u7ebf\u7a0b\u7f13\u5b58\u4e2d\u79fb\u5165Central free 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class=\"image-caption\">v2-48e65592edd228c1fc28f7509dba2ab7_1200x500.jpg<\/div>\n<\/div>\n<p>11\u3001\u7ed3\u5408\u5e94\u7528\u8003\u8651<\/p>\n<p>1\uff09ThreadCache\u662f\u9762\u5411pthread\u7684\uff0c\u5bf9\u4e8ebaidu-rpc\uff0c\u5982\u679c\u662f\u96b6\u5c5e\u4e8e\u4e00\u4e2apthread\u7684\u591a\u4e2abthread\uff0c\u5176\u5c06\u590d\u7528\u540c\u4e00\u4e2aThreadCahce\u3002<\/p>\n<p>2\uff09\u975e\u5bf9\u79f0malloc\/free\uff1a\u5728\u5e94\u7528\u4ee3\u7801\u4e2d\u4f1a\u51fa\u73b0\u5982\u4e0b\u573a\u666f\uff0c\u4e00\u4e2a\u5c0f\u5bf9\u8c61\u662f\u5728A\u7ebf\u7a0b\u4e2d\u5206\u914d\uff0c\u4f46\u662f\u5728B\u7ebf\u7a0b\u4e2d\u91ca\u653e\u3002\u8fd9\u4f1a\u5bfc\u81f4A\u7ebf\u7a0b\u4f1a\u5f88\u5feb\u7528\u5149ThreadCache\u4e2d\u5206\u914d\u7684\u5185\u5b58\uff0c\u9700\u8981\u91cd\u65b0\u4eceCentralCache\u4e2d\u7533\u8bf7\u5185\u5b58\uff1b\u800cB\u7ebf\u7a0b\u5219\u4f1a\u5f88\u5feb\u8fbe\u52302M\u9608\u503c\uff0c\u4ece\u800c\u5411CentralCache\u8fd4\u8fd8\u5185\u5b58\u3002\u8fd9\u79cd\u573a\u666f\u4e0btcmalloc\u7684\u6027\u80fd\u4f1a\u8868\u73b0\u4e0d\u4f73\uff0c\u56e0\u4e3a\u8bbf\u95eeCentralCache\u4f1a\u51fa\u73b0\u591a\u7ebf\u7a0b\u7ade\u4e89\uff0c\u662f\u4e00\u4e2a\u52a0\u9501\u64cd\u4f5c\uff08100ns\u7ea7\u522b\uff09\uff0c\u56e0\u6b64\u5728\u5b9e\u9645\u7f16\u7801\u4e2d\u5c3d\u91cf\u907f\u514d\u8fd9\u7c7b\u7528\u6cd5\u3002<\/p>\n<p>\u53c2\u8003\u6587\u732e\uff1a<\/p>\n<p><a href=\"http:\/\/goog-perftools.sourceforge.net\/doc\/tcmalloc.html\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">http:\/\/goog-perftools.sourceforge.net\/doc\/tcmalloc.html<\/a><\/p>\n<p><a href=\"https:\/\/zhuanlan.zhihu.com\/p\/29216091\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">https:\/\/zhuanlan.zhihu.com\/p\/29216091<\/a><\/p>\n<p><a href=\"https:\/\/my.oschina.net\/victorlovecode\/blog\/344414\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">https:\/\/my.oschina.net\/victorlovecode\/blog\/344414<\/a><\/p>\n<\/article>\n<div><\/div>\n<div class=\"_1kCBjS\">\n<div class=\"_18vaTa\">\n<div class=\"_3BUZPB\">\n<div class=\"_2Bo4Th\" tabindex=\"-1\" role=\"button\" aria-label=\"\u7ed9\u6587\u7ae0\u70b9\u8d5e\"><\/div>\n<p><span class=\"_1LOh_5\" tabindex=\"-1\" role=\"button\" aria-label=\"\u67e5\u770b\u70b9\u8d5e\u5217\u8868\">1\u4eba\u70b9\u8d5e<i class=\"anticon anticon-right\" aria-label=\"icon: right\"><\/i><\/span><\/div>\n<div class=\"_3BUZPB\">\n<div class=\"_2Bo4Th\" tabindex=\"-1\" role=\"button\"><\/div>\n<\/div>\n<\/div>\n<div class=\"_18vaTa\"><a class=\"_3BUZPB _1x1ok9 _1OhGeD\" href=\"https:\/\/www.jianshu.com\/nb\/18104678\" target=\"_blank\" rel=\"noopener noreferrer\"><i class=\"anticon\" aria-label=\"ic-notebook\"><\/i>\u65e5\u8bb0\u672c<\/a><\/p>\n<div class=\"_3BUZPB ant-dropdown-trigger\">\n<div class=\"_2Bo4Th\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u539f\u6587\u5730\u5740 &nbsp; 1\u3001\u52a8\u673a tcm<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"colormag_page_container_layout":"default_layout","colormag_page_sidebar_layout":"default_layout","footnotes":""},"categories":[],"tags":[119],"class_list":["post-4691","post","type-post","status-publish","format-standard","hentry","tag-03-"],"_links":{"self":[{"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/posts\/4691","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/comments?post=4691"}],"version-history":[{"count":0,"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/posts\/4691\/revisions"}],"wp:attachment":[{"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/media?parent=4691"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/categories?post=4691"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/tags?post=4691"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}