{"id":2727,"date":"2023-06-04T10:25:56","date_gmt":"2023-06-04T02:25:56","guid":{"rendered":"https:\/\/aic.leexinghai.com\/?p=2727"},"modified":"2023-06-10T08:42:14","modified_gmt":"2023-06-10T00:42:14","slug":"h30611-%e5%ae%9e%e9%aa%8c%e4%b8%83-%e4%bf%a1%e5%8f%b7%e4%b8%8e%e7%ae%a1%e9%81%93%e9%80%9a%e4%bf%a1","status":"publish","type":"post","link":"https:\/\/www.leexinghai.com\/aic\/h30611-%e5%ae%9e%e9%aa%8c%e4%b8%83-%e4%bf%a1%e5%8f%b7%e4%b8%8e%e7%ae%a1%e9%81%93%e9%80%9a%e4%bf%a1\/","title":{"rendered":"H30611-\u5b9e\u9a8c\u4e03-\u4fe1\u53f7\u4e0e\u7ba1\u9053\u901a\u4fe1"},"content":{"rendered":"\n<p>\u4e00\u3001<strong>\u5b9e\u9a8c\u76ee\u7684<\/strong><\/p>\n\n\n\n<p>1. \u52a0\u6df1\u7406\u89e3\u4fe1\u53f7\u548c\u7ba1\u9053\u7684\u6982\u5ff5\u53ca\u5b9e\u73b0\u8fdb\u7a0b\u95f4\u901a\u4fe1\u7684\u539f\u7406\u3002<\/p>\n\n\n\n<p>2. \u638c\u63e1\u4fe1\u53f7\u901a\u4fe1\u673a\u5236\uff0c\u5b66\u4f1a\u901a\u8fc7\u4fe1\u53f7\u5b9e\u73b0\u8fdb\u7a0b\u95f4\u7684\u540c\u6b65\u901a\u4fe1\u3002<\/p>\n\n\n\n<p>3. \u638c\u63e1\u533f\u540d\u7ba1\u9053\u901a\u4fe1\u673a\u5236\uff0c\u5b66\u4f1a\u901a\u8fc7\u533f\u540d\u7ba1\u9053\u5b9e\u73b0\u8fdb\u7a0b\u95f4\u7684\u6570\u636e\u901a\u4fe1\u3002<\/p>\n\n\n\n<p>\u4e8c\u3001<strong>\u5b9e\u9a8c\u5185\u5bb9<\/strong><\/p>\n\n\n\n<p>\u672c\u5b9e\u9a8c\u5b9e\u73b0\u7236\u5b50\u8fdb\u7a0b\u4e4b\u95f4\u7684\u7ba1\u9053\u901a\u4fe1\u3002\u7a0b\u5e8f\u4e2d\u7531\u7236\u8fdb\u7a0b\u521b\u5efa\u4e00\u4e2a\u533f\u540d\u7ba1\u9053\uff0c\u5e76\u521b\u5efa\u4e862\u4e2a\u5b50\u8fdb\u7a0b\u3002\u4e24\u4e2a\u5b50\u8fdb\u7a0b\u90fd\u4ece\u7ba1\u9053\u5199\u7aef\uff08\u5165\u53e3\uff09\u5199\u5165\u4e00\u4e2a\u53d1\u7ed9\u7236\u8fdb\u7a0b\u7684\u6d88\u606f\uff08\u5b57\u7b26\u4e32\uff09\uff0c\u7236\u8fdb\u7a0b\u5219\u4ece\u7ba1\u9053\u8bfb\u7aef\uff08\u51fa\u53e3\uff09\u8bfb\u53d6\u53d1\u6765\u7684\u4e24\u4e2a\u6d88\u606f\u3002<\/p>\n\n\n\n<p>\u4e09\u3001<strong>\u5b9e\u9a8c\u4e3b\u8981\u6b65\u9aa4<\/strong><\/p>\n\n\n\n<p>(1)\u7a0b\u5e8f\u8bbe\u8ba1<\/p>\n\n\n\n<p>\u4e0b\u9762\u662f\u7a0b\u5e8f\u7684\u90e8\u5206\u4ee3\u7801\uff0c\u8bf7\u5b8c\u6210\u8be5\u7a0b\u5e8f\u7684\u8bbe\u8ba1\u3002<\/p>\n\n\n\n<div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<p><code>\/*test7_1.c\uff1a\u533f\u540d\u7ba1\u9053*\/<\/code><\/p>\n\n\n\n<p><code># include &lt;stdio.h&gt;<\/code><\/p>\n\n\n\n<p><code># include &lt;unistd.h&gt;<\/code><\/p>\n\n\n\n<p><code>int main( )<\/code><\/p>\n\n\n\n<p><code>{<\/code><\/p>\n\n\n\n<p><code>int i ,p1 ,p2 , pid , fd[2] ;<\/code><\/p>\n\n\n\n<p><code>&nbsp;&nbsp; &nbsp;char buf[80];<\/code><\/p>\n\n\n\n<p><code>&nbsp; &nbsp;&lt;\u521b\u5efa\u4e00\u4e2a\u533f\u540d\u7ba1\u9053&gt;<\/code><\/p>\n\n\n\n<p><code>&nbsp; &nbsp;while((p1=fork( ))==-1);<\/code><\/p>\n\n\n\n<p><code>&nbsp; &nbsp;if (p1==0) {&nbsp; \/*\u5b50\u8fdb\u7a0b1\u4ee3\u7801*\/<\/code><\/p>\n\n\n\n<p><code>&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;sprintf (buf,\u201dMessage of child_1\u201d); \/*\u5728buf\u4e2d\u5199\u5165\u6d88\u606f\u6587\u672c*\/<\/code><\/p>\n\n\n\n<p><code>&nbsp; &nbsp;&lt;\u5411\u7ba1\u9053\u5199\u5165\u6d88\u606f&gt;<\/code><\/p>\n\n\n\n<p><code>&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;printf (\u201cChild_1 write an message to pipe!\\n\u201d);<\/code><\/p>\n\n\n\n<p><code>&nbsp;&nbsp; &nbsp;for( i=0; i&lt;99999; i++);<\/code><\/p>\n\n\n\n<p><code>&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&lt;\u7ec8\u6b62&gt;<\/code><\/p>\n\n\n\n<p><code>}<\/code><\/p>\n\n\n\n<p><code>&nbsp; else{<\/code><\/p>\n\n\n\n<p><code>&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;while((p2=fork())==-1);<\/code><\/p>\n\n\n\n<p><code>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0if (p2==0){\u00a0\u00a0 \/*\u5b50\u8fdb\u7a0b2\u4ee3\u7801*\/<\/code><\/p>\n\n\n\n<p><code>&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;sprintf (buf,\u201dMessage of child_2\u201d);<\/code><\/p>\n\n\n\n<p><code>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&lt;\u5411\u7ba1\u9053\u5199\u5165\u6d88\u606f&gt;<\/code><\/p>\n\n\n\n<p><code>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;printf (\u201cChild_2 write an message to pipe!\\n\u201d);<\/code><\/p>\n\n\n\n<p><code>&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;for( i=0; i&lt;99999; i++);<\/code><\/p>\n\n\n\n<p><code>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&lt;\u7ec8\u6b62&gt;<\/code><\/p>\n\n\n\n<p><code>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;}<\/code><\/p>\n\n\n\n<p><code>&nbsp; else {&nbsp;&nbsp; \/*\u7236\u8fdb\u7a0b\u4ee3\u7801*\/<\/code><\/p>\n\n\n\n<p><code>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&lt;\u7b49\u5f85\u5b50\u8fdb\u7a0b\u7ec8\u6b62&gt;<\/code><\/p>\n\n\n\n<p><code>&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&lt;\u4ece\u7ba1\u9053\u4e2d\u5148\u540e\u8bfb\u51fa\u4e24\u4e2a\u6d88\u606f\uff0c\u5e76\u8f93\u51fa\u76f8\u5173\u63d0\u793a\u4fe1\u606f&gt;<\/code><\/p>\n\n\n\n<p><code>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&lt;\u5173\u95ed\u7ba1\u9053&gt;<\/code><\/p>\n\n\n\n<p><code>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;printf(\u201cOVER\\n\u201d);<\/code><\/p>\n\n\n\n<p><code>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;}<\/code><\/p>\n\n\n\n<p><code>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 }<\/code><\/p>\n\n\n\n<p><code>return 0;<\/code><\/p>\n\n\n\n<p><code>}\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code><\/p>\n<\/div><\/div>\n\n\n\n<p>\u8981\u6c42\u7a0b\u5e8f\u8f93\u51fa\u7ed3\u679c\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n\n\n\n<div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<p><code>Child_1 write an message to pipe!<\/code><\/p>\n\n\n\n<p><code>Child_2 write an message to pipe!<\/code><\/p>\n\n\n\n<p><code>Parent read an message of child_1: Message of child_1<\/code><\/p>\n\n\n\n<p><code>Parent read an message of child_2: Message of child_2<\/code><\/p>\n\n\n\n<p><code>OVER<\/code><\/p>\n<\/div><\/div>\n\n\n\n<p>\u5176\u4e2d\uff0c\u524d\u4e24\u884c\u7684\u987a\u5e8f\u53ef\u98a0\u5012\uff0c\u7b2c3\u548c\u7b2c4\u884c\u7684\u987a\u5e8f\u4e5f\u53ef\u98a0\u5012\u3002<\/p>\n\n\n\n<p>\u6216\uff1a<\/p>\n\n\n\n<div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<p><code>Child_1 write an message to pipe!<\/code><\/p>\n\n\n\n<p><code>Parent read an message of child_1: Message of child_1<\/code><\/p>\n\n\n\n<p><code>Child_2 write an message to pipe!<\/code><\/p>\n\n\n\n<p><code>Parent read an message of child_2: Message of child_2<\/code><\/p>\n\n\n\n<p><code>OVER<\/code><\/p>\n<\/div><\/div>\n\n\n\n<p>\u6216\uff1a<\/p>\n\n\n\n<div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<p><code>Child_2 write an message to pipe!<\/code><\/p>\n\n\n\n<p><code>Parent read an message of child_2: Message of child_2<\/code><\/p>\n\n\n\n<p><code>Child_1 write an message to pipe!<\/code><\/p>\n\n\n\n<p><code>Parent read an message of child_1: Message of child_1<\/code><\/p>\n\n\n\n<p><code>OVER<\/code><\/p>\n<\/div><\/div>\n\n\n\n<p>(2)\u7f16\u8f91\u3001\u7f16\u8bd1\u3001\u8c03\u8bd5\u8be5\u7a0b\u5e8f\u3002<\/p>\n\n\n\n<p>(3)\u591a\u6b21\u8fd0\u884ctest7_1\uff0c\u89c2\u5bdf\u8fd0\u884c\u7ed3\u679c\u3002<\/p>\n\n\n\n<p>\u5982\u679c\u51fa\u73b0\u4e0d\u7b26\u5408\u8981\u6c42\u7684\u8f93\u51fa\u7ed3\u679c\uff0c\u95ee\u9898\u51fa\u5728\u4ec0\u4e48\u5730\u65b9\uff1f<\/p>\n\n\n\n<p>\u4fee\u6539\u7a0b\u5e8f\uff0c\u76f4\u5230\u65e0\u9519\u4e3a\u6b62\u3002<\/p>\n\n\n\n<p>\u56db\u3001<strong>\u5b9e\u9a8c\u7ed3\u679c\u6d4b\u8bd5<\/strong><\/p>\n\n\n\n<p>1.\u4fee\u6539\u6240\u7ed9\u4ee3\u7801\uff0c\u5373\u8fdb\u884c\u521b\u5efa\u4e00\u4e2a\u533f\u540d\u7ba1\u9053\uff0c\u5206\u522b\u5411\u7ba1\u90531\uff0c2\u5199\u5165\u6d88\u606f\u5e76\u8bbe\u7f6e\u7ec8\u6b62\u4fe1\u53f7\uff0c\u5f85\u5b50\u8fdb\u7a0b\u7ec8\u6b62\u540e\u4ece\u7ba1\u9053\u5148\u540e\u8bfb\u51fa\u4e24\u4e2a\u6d88\u606f\uff0c\u5e76\u8f93\u51fa\u76f8\u5173\u63d0\u793a\u4fe1\u606f\u3002\u6700\u540e\u5173\u95ed\u7ba1\u9053\u3002\u5bf9\u4e8e\u524d30\u884c\u7684\u4ee3\u7801\u4fee\u6539\uff0c\u5982\u56fe1\u6240\u793a\uff0c\u5bf9\u4e8e31\u81f344\u884c\u7684\u4ee3\u7801\u4fee\u6539\uff0c\u5982\u56fe2\u6240\u793a\u3002<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"865\" height=\"781\" src=\"https:\/\/www.leexinghai.com\/aic\/wp-content\/uploads\/2023\/06\/image.png\" alt=\"\" class=\"wp-image-2728\" srcset=\"https:\/\/www.leexinghai.com\/aic\/wp-content\/uploads\/2023\/06\/image.png 865w, https:\/\/www.leexinghai.com\/aic\/wp-content\/uploads\/2023\/06\/image-300x271.png 300w, https:\/\/www.leexinghai.com\/aic\/wp-content\/uploads\/2023\/06\/image-768x693.png 768w\" sizes=\"auto, (max-width: 865px) 100vw, 865px\" \/><figcaption class=\"wp-element-caption\">\u56fe1<\/figcaption><\/figure>\n<\/div>\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"865\" height=\"277\" src=\"https:\/\/www.leexinghai.com\/aic\/wp-content\/uploads\/2023\/06\/image-1.png\" alt=\"\" class=\"wp-image-2729\" srcset=\"https:\/\/www.leexinghai.com\/aic\/wp-content\/uploads\/2023\/06\/image-1.png 865w, https:\/\/www.leexinghai.com\/aic\/wp-content\/uploads\/2023\/06\/image-1-300x96.png 300w, https:\/\/www.leexinghai.com\/aic\/wp-content\/uploads\/2023\/06\/image-1-768x246.png 768w\" sizes=\"auto, (max-width: 865px) 100vw, 865px\" \/><figcaption class=\"wp-element-caption\">\u56fe2<\/figcaption><\/figure>\n<\/div>\n\n\n<p>2.\u7f16\u8bd1\u751f\u6210\u4ee3\u7801\uff0c\u7ed3\u679c\u5982\u56fe3\u6240\u793a\u3002<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"862\" height=\"353\" src=\"https:\/\/www.leexinghai.com\/aic\/wp-content\/uploads\/2023\/06\/image-2.png\" alt=\"\" class=\"wp-image-2730\" srcset=\"https:\/\/www.leexinghai.com\/aic\/wp-content\/uploads\/2023\/06\/image-2.png 862w, https:\/\/www.leexinghai.com\/aic\/wp-content\/uploads\/2023\/06\/image-2-300x123.png 300w, https:\/\/www.leexinghai.com\/aic\/wp-content\/uploads\/2023\/06\/image-2-768x315.png 768w\" sizes=\"auto, (max-width: 862px) 100vw, 862px\" \/><figcaption class=\"wp-element-caption\">\u56fe3<\/figcaption><\/figure>\n<\/div>\n\n\n<h2 class=\"wp-block-heading\">\u516d\u3001\u9644\u4ef6\u4e0b\u8f7d<\/h2>\n\n\n\n<div class=\"wp-block-file\"><a id=\"wp-block-file--media-5d1b5df3-9cba-4164-ba55-a9ce7b310edc\" href=\"https:\/\/www.leexinghai.com\/aic\/wp-content\/uploads\/2023\/06\/test7_1.7z\">test7_1<\/a><a href=\"https:\/\/www.leexinghai.com\/aic\/wp-content\/uploads\/2023\/06\/test7_1.7z\" class=\"wp-block-file__button wp-element-button\" download aria-describedby=\"wp-block-file--media-5d1b5df3-9cba-4164-ba55-a9ce7b310edc\">\u4e0b\u8f7d<\/a><\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u4e00\u3001\u5b9e\u9a8c\u76ee\u7684 1. \u52a0\u6df1\u7406\u89e3\u4fe1\u53f7\u548c\u7ba1\u9053\u7684\u6982\u5ff5\u53ca\u5b9e\u73b0\u8fdb\u7a0b\u95f4\u901a\u4fe1\u7684\u539f\u7406\u3002 2. \u638c\u63e1\u4fe1\u53f7\u901a\u4fe1\u673a\u5236\uff0c\u5b66\u4f1a\u901a\u8fc7\u4fe1\u53f7\u5b9e\u73b0 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":2730,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[35],"tags":[],"class_list":["post-2727","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-os"],"_links":{"self":[{"href":"https:\/\/www.leexinghai.com\/aic\/wp-json\/wp\/v2\/posts\/2727","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.leexinghai.com\/aic\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.leexinghai.com\/aic\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.leexinghai.com\/aic\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.leexinghai.com\/aic\/wp-json\/wp\/v2\/comments?post=2727"}],"version-history":[{"count":2,"href":"https:\/\/www.leexinghai.com\/aic\/wp-json\/wp\/v2\/posts\/2727\/revisions"}],"predecessor-version":[{"id":2749,"href":"https:\/\/www.leexinghai.com\/aic\/wp-json\/wp\/v2\/posts\/2727\/revisions\/2749"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.leexinghai.com\/aic\/wp-json\/wp\/v2\/media\/2730"}],"wp:attachment":[{"href":"https:\/\/www.leexinghai.com\/aic\/wp-json\/wp\/v2\/media?parent=2727"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.leexinghai.com\/aic\/wp-json\/wp\/v2\/categories?post=2727"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.leexinghai.com\/aic\/wp-json\/wp\/v2\/tags?post=2727"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}