{"id":22811,"date":"2024-03-16T00:10:45","date_gmt":"2024-03-16T00:10:45","guid":{"rendered":"https:\/\/www.silicloud.com\/blog\/how-to-determine-a-string-in-the-c-language\/"},"modified":"2024-03-21T23:46:13","modified_gmt":"2024-03-21T23:46:13","slug":"how-to-determine-a-string-in-the-c-language","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/blog\/how-to-determine-a-string-in-the-c-language\/","title":{"rendered":"How to determine a string in the C language?"},"content":{"rendered":"<p>In C language, the strcmp function can be used to compare strings.<\/p>\n<p>The strcmp function takes two strings as parameters and returns an integer value.<\/p>\n<ol>\n<li>If the two strings are equal, the return value is 0.<\/li>\n<li>If the first string is less than the second string, the return value will be less than 0.<\/li>\n<li>If the first string is greater than the second string, the return value will be greater than 0.<\/li>\n<\/ol>\n<p>Here is an example:<\/p>\n<pre class=\"post-pre\"><code><span class=\"hljs-meta\">#<span class=\"hljs-keyword\">include<\/span> <span class=\"hljs-string\">&lt;stdio.h&gt;<\/span><\/span>\r\n<span class=\"hljs-meta\">#<span class=\"hljs-keyword\">include<\/span> <span class=\"hljs-string\">&lt;string.h&gt;<\/span><\/span>\r\n\r\n<span class=\"hljs-type\">int<\/span> <span class=\"hljs-title function_\">main<\/span><span class=\"hljs-params\">()<\/span> {\r\n    <span class=\"hljs-type\">char<\/span> str1[] = <span class=\"hljs-string\">\"Hello\"<\/span>;\r\n    <span class=\"hljs-type\">char<\/span> str2[] = <span class=\"hljs-string\">\"World\"<\/span>;\r\n\r\n    <span class=\"hljs-type\">int<\/span> result = <span class=\"hljs-built_in\">strcmp<\/span>(str1, str2);\r\n\r\n    <span class=\"hljs-keyword\">if<\/span> (result == <span class=\"hljs-number\">0<\/span>) {\r\n        <span class=\"hljs-built_in\">printf<\/span>(<span class=\"hljs-string\">\"\u4e24\u4e2a\u5b57\u7b26\u4e32\u76f8\u7b49\\n\"<\/span>);\r\n    } <span class=\"hljs-keyword\">else<\/span> <span class=\"hljs-keyword\">if<\/span> (result &lt; <span class=\"hljs-number\">0<\/span>) {\r\n        <span class=\"hljs-built_in\">printf<\/span>(<span class=\"hljs-string\">\"\u7b2c\u4e00\u4e2a\u5b57\u7b26\u4e32\u5c0f\u4e8e\u7b2c\u4e8c\u4e2a\u5b57\u7b26\u4e32\\n\"<\/span>);\r\n    } <span class=\"hljs-keyword\">else<\/span> {\r\n        <span class=\"hljs-built_in\">printf<\/span>(<span class=\"hljs-string\">\"\u7b2c\u4e00\u4e2a\u5b57\u7b26\u4e32\u5927\u4e8e\u7b2c\u4e8c\u4e2a\u5b57\u7b26\u4e32\\n\"<\/span>);\r\n    }\r\n\r\n    <span class=\"hljs-keyword\">return<\/span> <span class=\"hljs-number\">0<\/span>;\r\n}\r\n<\/code><\/pre>\n<p>The output shows that the first string is less than the second string.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In C language, the strcmp function can be used to compare strings. The strcmp function takes two strings as parameters and returns an integer value. If the two strings are equal, the return value is 0. If the first string is less than the second string, the return value will be less than 0. If [&hellip;]<\/p>\n","protected":false},"author":7,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_import_markdown_pro_load_document_selector":0,"_import_markdown_pro_submit_text_textarea":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-22811","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>How to determine a string in the C language? - Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/blog\/how-to-determine-a-string-in-the-c-language\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How to determine a string in the C language?\" \/>\n<meta property=\"og:description\" content=\"In C language, the strcmp function can be used to compare strings. The strcmp function takes two strings as parameters and returns an integer value. If the two strings are equal, the return value is 0. If the first string is less than the second string, the return value will be less than 0. 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