{"id":3090,"date":"2022-02-03T11:00:34","date_gmt":"2022-02-03T03:00:34","guid":{"rendered":"https:\/\/blog.iyatt.com\/?p=3090"},"modified":"2024-05-05T14:19:26","modified_gmt":"2024-05-05T06:19:26","slug":"%e7%ae%97%e6%95%b0%e5%b9%b3%e6%96%b9%e6%a0%b9%e8%ae%a1%e7%ae%97","status":"publish","type":"post","link":"https:\/\/blog.iyatt.com\/?p=3090","title":{"rendered":"\u7b97\u6570\u5e73\u65b9\u6839\u8ba1\u7b97"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 ez-toc-wrap-center counter-hierarchy ez-toc-counter ez-toc-light-blue ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title ez-toc-toggle\" style=\"cursor:pointer\">\u76ee\u5f55<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><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><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/blog.iyatt.com\/?p=3090\/#%E6%B5%8B%E8%AF%95%E7%8E%AF%E5%A2%83\" >\u6d4b\u8bd5\u73af\u5883<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/blog.iyatt.com\/?p=3090\/#%E6%96%B9%E6%B3%95%E4%B8%80%EF%BC%9A%E7%89%9B%E9%A1%BF%E8%BF%AD%E4%BB%A3%E6%B3%95\" >\u65b9\u6cd5\u4e00\uff1a\u725b\u987f\u8fed\u4ee3\u6cd5<\/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.iyatt.com\/?p=3090\/#%E6%96%B9%E6%B3%95%E4%BA%8C%EF%BC%9A%E4%BA%8C%E5%88%86%E6%B3%95\" >\u65b9\u6cd5\u4e8c\uff1a\u4e8c\u5206\u6cd5<\/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.iyatt.com\/?p=3090\/#%E7%AE%80%E5%8D%95%E6%95%88%E7%8E%87%E6%AF%94%E8%BE%83\" >\u7b80\u5355\u6548\u7387\u6bd4\u8f83<\/a><\/li><\/ul><\/nav><\/div>\n\n<h2 class=\"wp-block-heading\" id=\"\u6d4b\u8bd5\u73af\u5883\"><span class=\"ez-toc-section\" id=\"%E6%B5%8B%E8%AF%95%E7%8E%AF%E5%A2%83\"><\/span>\u6d4b\u8bd5\u73af\u5883<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>gcc 9.4.0 \u2013 64\u4f4d<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">-no-pie -std=c17 -Wall -Werror=return-type -Werror=address -Werror=sequence-point -Werror=format-security -Wextra -pedantic -Wimplicit-fallthrough -Wsequence-point -Wswitch-unreachable -Wswitch-enum -Wstringop-truncation -Wbool-compare -Wtautological-compare -Wfloat-equal -Wshadow=global -Wpointer-arith -Wpointer-compare -Wcast-align -Wcast-qual -Wwrite-strings -Wdangling-else -Wlogical-op -Wconversion -g -O0 -lm<\/pre>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"\u65b9\u6cd5\u4e00-\u725b\u987f\u8fed\u4ee3\u6cd5\"><span class=\"ez-toc-section\" id=\"%E6%96%B9%E6%B3%95%E4%B8%80%EF%BC%9A%E7%89%9B%E9%A1%BF%E8%BF%AD%E4%BB%A3%E6%B3%95\"><\/span>\u65b9\u6cd5\u4e00\uff1a\u725b\u987f\u8fed\u4ee3\u6cd5<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">#include &lt;stdio.h>\n#include &lt;math.h>\n\n\ndouble my_abs(double num)\n{\n    if (num &lt; 0)\n    {\n        return -num;\n    }\n    return num;\n}\n\n\ndouble my_sqrt(double num)\n{\n    double epsilon = 0.000001;  \/\/ \u7cbe\u5ea6\u8981\u6c42\n    double guess = 1.0;  \/\/ \u521d\u59cb\u4f30\u8ba1\u503c\n    while (my_abs(guess * guess - num) > epsilon)\n    {\n        guess = ((num \/ guess) + guess) \/ 2;\n    }\n    return guess;\n}\n\n\nint main()\n{\n    printf(\"my_sqrt\\t\\tsqrt\\n\");\n    printf(\"%lf\\t%lf\\n\", my_sqrt(2), sqrt(2));\n    printf(\"%lf\\t%lf\\n\", my_sqrt(3), sqrt(3));\n    printf(\"%lf\\t%lf\\n\", my_sqrt(4), sqrt(4));\n    printf(\"%lf\\t%lf\\n\", my_sqrt(5), sqrt(5));\n    printf(\"%lf\\t%lf\\n\", my_sqrt(6), sqrt(6));\n    printf(\"%lf\\t%lf\\n\", my_sqrt(7), sqrt(7));\n    printf(\"%lf\\t%lf\\n\", my_sqrt(8), sqrt(8));\n    printf(\"%lf\\t%lf\\n\", my_sqrt(9), sqrt(9));\n    printf(\"%lf\\t%lf\\n\", my_sqrt(10), sqrt(10));\n}<\/pre>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"427\" height=\"260\" data-src=\"https:\/\/blog.iyatt.com\/wp-content\/uploads\/2022\/02\/image-7.png\" alt=\"\" class=\"wp-image-3092 lazyload\" data-srcset=\"https:\/\/blog.iyatt.com\/wp-content\/uploads\/2022\/02\/image-7.png 427w, https:\/\/blog.iyatt.com\/wp-content\/uploads\/2022\/02\/image-7-300x183.png 300w\" data-sizes=\"(max-width: 427px) 100vw, 427px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 427px; --smush-placeholder-aspect-ratio: 427\/260;\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"\u65b9\u6cd5\u4e8c-\u4e8c\u5206\u6cd5\"><span class=\"ez-toc-section\" id=\"%E6%96%B9%E6%B3%95%E4%BA%8C%EF%BC%9A%E4%BA%8C%E5%88%86%E6%B3%95\"><\/span>\u65b9\u6cd5\u4e8c\uff1a\u4e8c\u5206\u6cd5<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">#include &lt;stdio.h>\n#include &lt;math.h>\n\n\ndouble my_abs(double num)\n{\n    if (num &lt; 0)\n    {\n        return -num;\n    }\n    return num;\n}\n\n\ndouble my_sqrt(double num)\n{\n    double epsilon = 0.000001;  \/\/ \u7cbe\u5ea6\n    double low = 0;\n    double high = num;\n    double mid = (low + high) \/ 2;\n    while (my_abs(mid * mid - num) > epsilon)\n    {\n        if (mid * mid > num)\n        {\n            high = mid;\n        }\n        else\n        {\n            low = mid;\n        }\n        mid = (high + low) \/ 2;\n    }\n    return mid;\n}\n\n\nint main()\n{\n    printf(\"my_sqrt\\t\\tsqrt\\n\");\n    printf(\"%lf\\t%lf\\n\", my_sqrt(2), sqrt(2));\n    printf(\"%lf\\t%lf\\n\", my_sqrt(3), sqrt(3));\n    printf(\"%lf\\t%lf\\n\", my_sqrt(4), sqrt(4));\n    printf(\"%lf\\t%lf\\n\", my_sqrt(5), sqrt(5));\n    printf(\"%lf\\t%lf\\n\", my_sqrt(6), sqrt(6));\n    printf(\"%lf\\t%lf\\n\", my_sqrt(7), sqrt(7));\n    printf(\"%lf\\t%lf\\n\", my_sqrt(8), sqrt(8));\n    printf(\"%lf\\t%lf\\n\", my_sqrt(9), sqrt(9));\n    printf(\"%lf\\t%lf\\n\", my_sqrt(10), sqrt(10));\n}<\/pre>\n\n\n\n<h2 class=\"wp-block-heading\"><\/h2>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"\u7b80\u5355\u6548\u7387\u6bd4\u8f83\"><span class=\"ez-toc-section\" id=\"%E7%AE%80%E5%8D%95%E6%95%88%E7%8E%87%E6%AF%94%E8%BE%83\"><\/span>\u7b80\u5355\u6548\u7387\u6bd4\u8f83<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u6d4b\u8bd5\u6761\u4ef6\uff0c\u4f9d\u6b21\u8ba1\u7b97 2\uff5e10000000 \u4e4b\u95f4\u6574\u6570\u7684\u7b97\u6570\u5e73\u65b9\u6839\uff0c\u6bcf\u8ba1\u7b97\u4e00\u4e2a printf \u8f93\u51fa\u4e00\u6b21\u3002<\/p>\n\n\n\n<p>\u725b\u987f\u8fed\u4ee3\u6cd5\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"223\" height=\"205\" data-src=\"https:\/\/blog.iyatt.com\/wp-content\/uploads\/2022\/02\/image-9.png\" alt=\"\" class=\"wp-image-3095 lazyload\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 223px; --smush-placeholder-aspect-ratio: 223\/205;\" \/><\/figure>\n\n\n\n<p>\u4e8c\u5206\u6cd5\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"266\" height=\"202\" data-src=\"https:\/\/blog.iyatt.com\/wp-content\/uploads\/2022\/02\/image-8.png\" alt=\"\" class=\"wp-image-3094 lazyload\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 266px; --smush-placeholder-aspect-ratio: 266\/202;\" \/><\/figure>\n\n\n\n<p>\u76f8\u6bd4\u800c\u8a00\uff0c\u725b\u987f\u8fed\u4ee3\u6cd5\u7684\u6548\u7387\u4f3c\u4e4e\u66f4\u9ad8\u4e00\u4e9b\u3002\u5982\u679c\u5728\u4e24\u79cd\u7b97\u6cd5\u7684\u5faa\u73af\u4e2d\u52a0\u5165\u8ba1\u6570\u5c31\u4f1a\u53d1\u73b0\uff0c\u4e8c\u5206\u6cd5\u901a\u5e38\u5faa\u73af\u6b21\u6570\u66f4\u591a\uff0c\u603b\u4f53\u800c\u8a00\u6d88\u8017\u65f6\u95f4\u4e5f\u5c31\u66f4\u591a\u3002\u5728\u8ba1\u7b97\u5355\u4e2a\u6570\u636e\u7684\u7b97\u6570\u5e73\u65b9\u6839\u7684\u65f6\u5019\u53ef\u80fd\u770b\u4e0d\u51fa\u6765\uff0c\u4f46\u662f\u50cf\u4e0a\u9762\u8fbe\u5230\u5343\u4e07\u7ea7\u7684\u6570\u636e\u8ba1\u7b97\u65f6\uff0c\u7d2f\u52a0\u8d77\u6765\u5c31\u4f1a\u770b\u51fa\u660e\u663e\u7684\u5dee\u8ddd\u4e86\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6d4b\u8bd5\u73af\u5883 gcc 9.4.0 \u2013 64\u4f4d \u65b9\u6cd5\u4e00\uff1a\u725b\u987f\u8fed\u4ee3\u6cd5 \u65b9\u6cd5\u4e8c\uff1a\u4e8c\u5206\u6cd5 \u7b80\u5355\u6548\u7387\u6bd4\u8f83 \u6d4b\u8bd5\u6761\u4ef6\uff0c\u4f9d\u6b21\u8ba1\u7b97 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"zakra_page_container_layout":"customizer","zakra_page_sidebar_layout":"customizer","zakra_remove_content_margin":false,"zakra_sidebar":"customizer","zakra_transparent_header":"customizer","zakra_logo":0,"zakra_main_header_style":"default","zakra_menu_item_color":"","zakra_menu_item_hover_color":"","zakra_menu_item_active_color":"","zakra_menu_active_style":"","zakra_page_header":true,"_lmt_disableupdate":"","_lmt_disable":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-3090","post","type-post","status-publish","format-standard","hentry","category-all"],"modified_by":"IYATT-yx","_links":{"self":[{"href":"https:\/\/blog.iyatt.com\/index.php?rest_route=\/wp\/v2\/posts\/3090","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.iyatt.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.iyatt.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.iyatt.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.iyatt.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3090"}],"version-history":[{"count":0,"href":"https:\/\/blog.iyatt.com\/index.php?rest_route=\/wp\/v2\/posts\/3090\/revisions"}],"wp:attachment":[{"href":"https:\/\/blog.iyatt.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3090"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.iyatt.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3090"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.iyatt.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3090"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}