{"id":949,"date":"2021-12-19T11:52:11","date_gmt":"2021-12-19T03:52:11","guid":{"rendered":"https:\/\/blog.cauchyschwarz.com\/?p=949"},"modified":"2021-12-19T11:52:16","modified_gmt":"2021-12-19T03:52:16","slug":"apiue%e8%af%bb%e4%b9%a6%e7%ac%94%e8%ae%b0chapter1","status":"publish","type":"post","link":"https:\/\/blog.cauchyschwarz.com\/?p=949","title":{"rendered":"APIUE\u8bfb\u4e66\u7b14\u8bb0chapter1"},"content":{"rendered":"\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_85 ez-toc-wrap-right counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<label for=\"ez-toc-cssicon-toggle-item-6a33ee7ab7dda\" class=\"ez-toc-cssicon-toggle-label\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/label><input type=\"checkbox\"  id=\"ez-toc-cssicon-toggle-item-6a33ee7ab7dda\" checked aria-label=\"Toggle\" \/><nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/blog.cauchyschwarz.com\/?p=949\/#%E7%AE%80%E8%AE%B0\" >\u7b80\u8bb0<\/a><ul class='ez-toc-list-level-2' ><li class='ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/blog.cauchyschwarz.com\/?p=949\/#12_Unix_Architecture\" >1.2 Unix Architecture<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/blog.cauchyschwarz.com\/?p=949\/#13_Logging_In\" >1.3 Logging In<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/blog.cauchyschwarz.com\/?p=949\/#%E5%85%B3%E4%BA%8Eman%E5%91%BD%E4%BB%A4\" >\u5173\u4e8eman\u547d\u4ee4<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/blog.cauchyschwarz.com\/?p=949\/#17_Error_Handling\" >1.7 Error Handling<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/blog.cauchyschwarz.com\/?p=949\/#18_User_Identification\" >1.8 User Identification<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/blog.cauchyschwarz.com\/?p=949\/#110_Time_Values\" >1.10 Time Values<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/blog.cauchyschwarz.com\/?p=949\/#%E4%B9%A0%E9%A2%98\" >\u4e60\u9898<\/a><\/li><\/ul><\/nav><\/div>\n<h1 class=\"wp-block-heading\" id=\"e7ae80e8aeb0-2\"><span class=\"ez-toc-section\" id=\"%E7%AE%80%E8%AE%B0\"><\/span>\u7b80\u8bb0<span class=\"ez-toc-section-end\"><\/span><\/h1>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"12-unix-architecture-2\"><span class=\"ez-toc-section\" id=\"12_Unix_Architecture\"><\/span>1.2 Unix Architecture<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"540\" height=\"440\" src=\"https:\/\/blog.cauchyschwarz.com\/wp-content\/uploads\/2021\/12\/apiue_unix-architecture.png\" alt=\"\" class=\"wp-image-950\" srcset=\"https:\/\/blog.cauchyschwarz.com\/wp-content\/uploads\/2021\/12\/apiue_unix-architecture.png 540w, https:\/\/blog.cauchyschwarz.com\/wp-content\/uploads\/2021\/12\/apiue_unix-architecture-300x244.png 300w\" sizes=\"auto, (max-width: 540px) 100vw, 540px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"13-logging-in-2\"><span class=\"ez-toc-section\" id=\"13_Logging_In\"><\/span>1.3 Logging In<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u767b\u5f55\u65f6\uff0cUnix\u7cfb\u7edf\u5728\u6587\u4ef6\/etc\/passwd\u4e2d\u5bfb\u627e\u76f8\u5173\u7684\u7528\u6237\u4fe1\u606f\u3002\/etc\/passwd\u4e2d\u7684\u6bcf\u4e00\u884c\u4ee3\u8868\u4e86\u4e00\u4e2a\u7528\u6237\uff0c\u75317\u4e2a\u5192\u53f7\u5206\u9694\u7684\u5b57\u6bb5\u6784\u6210\uff1a\u767b\u5f55\u540d\uff0c\u52a0\u8fc7\u5bc6\u7684\u5bc6\u7801\uff0c\u7528\u6237ID\uff0c\u7528\u6237\u7ec4ID\uff0c\u6ce8\u91ca\uff0c\u8be5\u7528\u6237\u7684home\u76ee\u5f55\uff0c\u8be5\u7528\u6237\u767b\u5f55\u65f6\u8981\u4f7f\u7528\u7684shell\u3002\u4f8b\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code class=\"\">sar:x:205:105:Stephen Rago:\/home\/sar:\/bin\/ksh\n<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\"><li>\u73b0\u5728\u7684Unix\/Linux\u7b49\u7cfb\u7edf\u5df2\u7ecf\u628a\u52a0\u5bc6\u8fc7\u7684\u5bc6\u7801\u5b58\u5230\u4e86\u5355\u72ec\u7684\u6587\u4ef6\u91cc\u3002<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"e585b3e4ba8emane591bde4bba4-2\"><span class=\"ez-toc-section\" id=\"%E5%85%B3%E4%BA%8Eman%E5%91%BD%E4%BB%A4\"><\/span>\u5173\u4e8eman\u547d\u4ee4<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u53ef\u4ee5\u7528<code>man [\u7ae0\u8282] &lt;\u547d\u4ee4&gt;<\/code>\u7684\u65b9\u5f0f\u5728\u6307\u5b9a\u7ae0\u8282\u4e2d\u67e5\u8be2\u76f8\u5e94\u547d\u4ee4\u3002\u5173\u4e8e\u7ae0\u8282\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code class=\"\"> man \u662f\u7cfb\u7edf\u7684\u624b\u518c\u5206\u9875\u7a0b\u5e8f\u3002\u6307\u5b9a\u7ed9 man \u7684 \u9875 \u9009\u9879\u901a\u5e38\u662f\u7a0b\u5e8f\u3001\u5de5\u5177\u6216\u51fd\u6570\u540d\u3002\u7a0b\u5e8f\u5c06\u663e\u793a\u6bcf\u4e00\u4e2a\u627e\u5230\u7684\u76f8\u5173 \u624b\u518c\u9875\u3002\u5982\u679c\u6307\u5b9a\u4e86 \u7ae0\u8282\uff0cman \u5c06\u53ea\u5728\u624b\u518c\u7684\u6307\u5b9a  \u7ae0\u8282  \u641c\u7d22\u3002\u9ed8\u8ba4\u5c06\u6309\u9884\u5b9a\u7684\u987a\u5e8f\u67e5\u627e\u6240\u6709\u53ef\u7528\u7684\n<\/code><\/pre>\n\n\n\n<pre class=\"wp-block-code\"><code class=\"\">   \u7ae0\u8282 (\u9ed8\u8ba4\u662f\u201c1 n l 8 3 2 3posix 3pm 3perl 5 4 9 6 7\u201d\uff0c\u9664\u975e\u88ab \/etc\/manpath.config \u4e2d\u7684 SECTION \u6307\u4ee4\u8986\u76d6)\uff0c\u5e76\u53ea\u663e\u793a\u627e\u5230\u7684\u7b2c\u4e00\u4e2a \u9875\uff0c\u5373\u4f7f\u591a\u4e2a \u7ae0\u8282 \u4e2d\u90fd\u6709\u8fd9\u4e2a \u9875\u9762\u3002\n<\/code><\/pre>\n\n\n\n<pre class=\"wp-block-code\"><code class=\"\">  \u4e0b\u8868\u663e\u793a\u4e86\u624b\u518c\u7684 \u7ae0\u8282 \u53f7\u53ca\u5176\u5305\u542b\u7684\u624b\u518c\u9875\u7c7b\u578b\u3002\n\n  1\n  \u53ef\u6267\u884c\u7a0b\u5e8f\u6216 shell \u547d\u4ee4\n  2\n  \u7cfb\u7edf\u8c03\u7528(\u5185\u6838\u63d0\u4f9b\u7684\u51fd\u6570)\n  3\n  \u5e93\u8c03\u7528(\u7a0b\u5e8f\u5e93\u4e2d\u7684\u51fd\u6570)\n  4\n  \u7279\u6b8a\u6587\u4ef6(\u901a\u5e38\u4f4d\u4e8e \/dev)\n  5\n  \u6587\u4ef6\u683c\u5f0f\u548c\u89c4\u8303\uff0c\u5982 \/etc\/passwd\n  6\n  \u6e38\u620f\n  7\n  \u6742\u9879(\u5305\u62ec\u5b8f\u5305\u548c\u89c4\u8303\uff0c\u5982 man(7)\uff0cgroff(7))\n  8\n  \u7cfb\u7edf\u7ba1\u7406\u547d\u4ee4(\u901a\u5e38\u53ea\u9488\u5bf9 root \u7528\u6237)\n  9\n  \u5185\u6838\u4f8b\u7a0b [\u975e\u6807\u51c6\n\n  \u4e00\u4e2a\u624b\u518c \u9875\u9762 \u5305\u542b\u82e5\u5e72\u4e2a\u5c0f\u8282\u3002\n\n  \u5c0f\u8282\u540d\u79f0\u901a\u5e38\u5305\u62ec  NAME,  \u6982\u8ff0(SYNOPSIS),  \u914d\u7f6e(CONFIGURATION),  \u63cf\u8ff0(DESCRIPTION),  \u9009\u9879(OPTIONS),  \u9000\u51fa\u72b6\u6001(EXIT STATUS),  \u8fd4\u56de\u503c(RETURN VALUE), \u9519\u8bef(ERRORS), \u73af\u5883(ENVIRONMENT), \u6587\u4ef6(FILES),\n  \u7248\u672c(VERSIONS), \u7b26\u5408\u6807\u51c6(CONFORMING TO), \u6ce8(NOTES), \u7f3a\u9677(BUGS), \u793a\u4f8b(EXAMPLE), \u4f5c\u8005(AUTHORS), \u548c \u4ea6\u89c1(SEE ALSO).\n<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"17-error-handling-2\"><span class=\"ez-toc-section\" id=\"17_Error_Handling\"><\/span>1.7 Error Handling<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ol class=\"wp-block-list\"><li>\u5f53Unix\u7cfb\u7edf\u8c03\u7528\u51fa\u9519\u65f6\uff0cerrno\u4f1a\u88ab\u8bbe\u5b9a\u4e3a\u76f8\u5e94\u7684\u503c\u4ee5\u6307\u793a\u51fa\u9519\u539f\u56e0\u3002\u4e3a\u4f7f\u7528errno\uff0c\u9700\u8981\u5f15\u5165\u5934\u6587\u4ef6errno.h\u3002<\/li><li>\u5982\u4f55\u89e3\u8bfberrno\u7684\u503c\uff1f\u67e5\u770berrno.h\uff0c\u6216\u8005<code>man errno<\/code>\uff0c\u6216\u8005\u4f7f\u7528<em>strerror<\/em>\u3001<em>perror<\/em>&nbsp;\u8fd9\u4e24\u4e2a\u51fd\u6570\u3002<\/li><li>POSIX\u548cISO C\u628aerrno\u5b9a\u4e49\u4e3a\u4e00\u4e2a\u7b26\u53f7(a symbol expanding into a modifiable&nbsp;<a href=\"http:\/\/www.cnblogs.com\/lua5\/archive\/2010\/12\/10\/1896757.html\">lvalue<\/a>&nbsp;of type integer)\uff0c\u53ef\u4fee\u6539\u7684\u6574\u6570\u7c7b\u578b\u7684\u5de6\u503c\u3002\u4ee5\u524d\u7684\u5b9a\u4e49(historical definition)\u662f<code>extern int errno<\/code>\uff0c\u4f46\u662f\u5728\u652f\u6301\u591a\u7ebf\u7a0b\u7684\u73af\u5883\u91cc\uff0c\u4e3a\u4e86\u907f\u514d\u591a\u4e2a\u7ebf\u7a0b\u5728\u4f7f\u7528errno\u65f6\u7684\u6df7\u4e71\uff0c\u9700\u8981\u6bcf\u4e2a\u7ebf\u7a0b\u6709\u4e00\u4e2a\u5355\u72ec\u7684errno\u3002\u6bd4\u5982\u5728Linux\u4e2d\uff0c\u4e3a\u652f\u6301\u591a\u7ebf\u7a0b\uff0c\u5c06errno\u5b9a\u4e49\u5982\u4e0b\uff1a<\/li><\/ol>\n\n\n\n<pre class=\"wp-block-code\"><code class=\"\">extern int *__errno_location(void);\n#define errno (*__errno_location())\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u5173\u4e8eerrno\u503c\u5f97\u6ce8\u610f\u7684\u4e24\u4e2a\u5730\u65b9\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>\u5982\u679c\u6ca1\u6709\u9519\u8bef\u53d1\u751f\uff0cerrno\u7684\u503c\u5c31\u4e0d\u4f1a\u88ab\u66f4\u65b0\uff1b<\/li><li>errno\u7684\u503c\u4e0d\u4f1a\u88ab\u8bbe\u4e3a0\uff0c&lt;errno.h&gt;\u4e2d\u7684\u4efb\u4f55\u4e00\u4e2a\u5e38\u91cf\u7684\u503c\u90fd\u4e0d\u4f1a\u662f0\uff1b<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"18-user-identification-2\"><span class=\"ez-toc-section\" id=\"18_User_Identification\"><\/span>1.8 User Identification<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ol class=\"wp-block-list\"><li>user ID\u4e3a0\u7684\u7528\u6237\u79f0\u4e4b\u4e3a<em>root<\/em>\/<em>superuser<\/em>\uff1b<\/li><li>\/etc\/group\u6587\u4ef6\u4e2d\u5b58\u50a8\u4e86\u5173\u4e8e\u7528\u6237\u7ec4\u7684\u4e00\u4e9b\u4fe1\u606f\uff1b<\/li><\/ol>\n\n\n\n<ul class=\"wp-block-list\"><li>Supplementary Group IDs \u4ece4.2BSD\u5f00\u59cb\uff0c\u6bcf\u4e2a\u7528\u6237\u53ef\u4ee5\u5c5e\u4e8e\u81f3\u591a16\u4e2a\u989d\u5916\u7684\u7ec4\u3002\u8fd9\u4e9b\u989d\u5916\u7684\u7ec4\u5728\u767b\u5f55\u7684\u65f6\u5019\uff0c\u901a\u8fc7\u8bfb\u53d6\/etc\/group\u6587\u4ef6\u4e2d\u7684\u5185\u5bb9\uff0c\u9009\u53d6\u524d16\u4e2a\u5c06\u8be5\u7528\u6237\u5217\u4e3a\u6210\u5458\u7684\u7ec4\u800c\u5f97\u5230\u3002\u6240\u4ee5\u4e00\u4e2a\u7528\u6237\u5230\u5e95\u81f3\u591a\u53ef\u4ee5\u5c5e\u4e8e\u591a\u5c11\u4e2a\u7ec4\uff1f<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"110-time-values-2\"><span class=\"ez-toc-section\" id=\"110_Time_Values\"><\/span>1.10 Time Values<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ul class=\"wp-block-list\"><li>\u65e5\u5386\u65f6\u95f4(Calendar time) \u8bb0\u5f55\u4eceEpoch:\u4e16\u754c\u6807\u51c6\u65f6\u95f4(UTC\uff0cCoordinated Universal Time\uff0c\u6216\u8005Greenwich Mean Time)1970\u5e741\u67081\u53f700:00:00\u5f00\u59cb\u7ecf\u8fc7\u7684\u79d2\u6570\u3002\u7528\u4e8e\u8bb0\u5f55\u6587\u4ef6\u4fee\u6539\u65f6\u95f4\u7b49\u3002\u7528time_t\u7c7b\u578b\u8868\u793a\u3002<\/li><li>\u8fdb\u7a0b\u65f6\u95f4(Process time) \u7528\u4e8e\u8bb0\u5f55\u8fdb\u7a0b\u7684CPU\u65f6\u95f4\u3002\u7528clock_t\u7c7b\u578b\u8868\u793a\u3002<\/li><li>Clock time wall clock time\uff0c\u5c31\u662f\u8fdb\u7a0b\u4ece\u5f00\u59cb\u5230\u7ed3\u675f\u8fd9\u4e24\u4e2a\u65f6\u95f4\u70b9\u7684\u5dee\u503c\uff1b\u8fd9\u4e2a\u65f6\u95f4\u53d7\u7cfb\u7edf\u4e0a\u6709\u591a\u5c11\u8fdb\u7a0b\u5728\u8dd1\u7b49\u56e0\u7d20\u6267\u884c\uff1b<\/li><li>User CPU time \u8be5\u8fdb\u7a0b\u7684\u7528\u6237\u6307\u4ee4\u6240\u5360\u7528\u7684\u65f6\u95f4\uff1b<\/li><li>System CPU time \u5185\u6838\u4ee3\u7801\u4ee3\u8868\u8be5\u8fdb\u7a0b\u6267\u884c\u7684\u65f6\u95f4\uff1b<\/li><\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u6240\u4ee5\u60f3\u8981\u8bc4\u4f30\u7a0b\u5e8f\u7684\u6027\u80fd\uff0c\u5e94\u8be5\u7528User CPU time\u52a0\u4e0aSystem CPU time\u6765\u8861\u91cf\uff0c\u5373\u6240\u8c13\u7684CPU time\u3002\u53ef\u4ee5\u901a\u8fc7<em>time<\/em>\u547d\u4ee4\u6765\u6267\u884c\u6307\u5b9a\u7a0b\u5e8f\uff0c\u83b7\u53d6\u76f8\u5e94\u7684Clock time\u3001User CPU time\u548cSystem CPU time\u3002<\/p>\n\n\n\n<h1 class=\"wp-block-heading\" id=\"e4b9a0e9a298-2\"><span class=\"ez-toc-section\" id=\"%E4%B9%A0%E9%A2%98\"><\/span>\u4e60\u9898<span class=\"ez-toc-section-end\"><\/span><\/h1>\n\n\n\n<ol class=\"wp-block-list\" start=\"3\"><li>In Section 1.7, the argument to\u00a0<em>perror<\/em>\u00a0is defined with the ISO C attribute\u00a0<em>const<\/em>, where as the integer argument to\u00a0<em>strerror<\/em>\u00a0isn&#8217;t defined with this attribute. Why?<br>\u56e0\u4e3a<em>perror<\/em>\u4f20\u7684\u53c2\u6570\u662f\u6307\u9488\uff0c\u4e3a\u4e86\u907f\u514d<em>perror<\/em>\u7684\u5b9e\u73b0\u4fee\u6539\u8be5\u6307\u9488\u6307\u5411\u7684\u5185\u5b58\u6240\u4ee5\u5c31\u52a0\u4e0a<em>const<\/em>\u4fee\u9970\u7b26\uff1b\u800c<em>strerror<\/em>\u4f20\u7684\u662f\u6574\u6570\uff0c\u662f\u503c\u4f20\u9012\uff0c\u6240\u4ee5\u4e0d\u5b58\u5728\u8fd9\u79cd\u95ee\u9898\u3002<\/li><li>If the calendar time is stored as a signed 32-bit integer, in which year will it overflow? How can we extend the overflow point? Are these strategies compatible with existing applications?<br>2038\u5e74\u3002\u53ef\u4ee5\u901a\u8fc7\u5c06time_t\u7c7b\u578b\u6362\u4e3a64\u4f4d\u6574\u6570\u6765\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff0c\u4f46\u662f\u4ecd\u7136\u6709\u5411\u540e\u517c\u5bb9\u7684\u95ee\u9898\u3002<\/li><li>If the process time is stored as a signed 32-bit integer, and if the system counts 100 ticksper second, after how many days will the value overflow?<br>248\u5929\u3002<\/li><\/ol>\n","protected":false},"excerpt":{"rendered":"<p>\u7b80\u8bb0 1.2 Unix Architecture 1.3 Logging In \u767b\u5f55\u65f6\uff0cUnix\u7cfb\u7edf\u5728\u6587\u4ef6\/etc\/passwd\u4e2d\u5bfb\u627e\u76f8\u5173\u7684\u7528\u6237\u4fe1\u606f\u3002\/etc\/passwd\u4e2d\u7684\u6bcf\u4e00\u884c\u4ee3\u8868\u4e86\u4e00\u4e2a\u7528\u6237\uff0c\u7531&#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[10,6],"tags":[109],"class_list":["post-949","post","type-post","status-publish","format-standard","hentry","category-10","category-6","tag-apiue"],"_links":{"self":[{"href":"https:\/\/blog.cauchyschwarz.com\/index.php?rest_route=\/wp\/v2\/posts\/949","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.cauchyschwarz.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.cauchyschwarz.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.cauchyschwarz.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.cauchyschwarz.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=949"}],"version-history":[{"count":1,"href":"https:\/\/blog.cauchyschwarz.com\/index.php?rest_route=\/wp\/v2\/posts\/949\/revisions"}],"predecessor-version":[{"id":951,"href":"https:\/\/blog.cauchyschwarz.com\/index.php?rest_route=\/wp\/v2\/posts\/949\/revisions\/951"}],"wp:attachment":[{"href":"https:\/\/blog.cauchyschwarz.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=949"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.cauchyschwarz.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=949"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.cauchyschwarz.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=949"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}