{"id":20266,"date":"2024-03-15T20:13:15","date_gmt":"2024-03-15T20:13:15","guid":{"rendered":"https:\/\/www.silicloud.com\/blog\/how-does-the-c-language-determine-strings\/"},"modified":"2024-03-21T17:40:33","modified_gmt":"2024-03-21T17:40:33","slug":"how-does-the-c-language-determine-strings","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/blog\/how-does-the-c-language-determine-strings\/","title":{"rendered":"How does the C language determine strings?"},"content":{"rendered":"<p>In the C language, the strcmp() function can be used to determine if two strings are equal. The strcmp() function will return an integer, with a return value of 0 if the two strings are equal, a value greater than 0 if the first string is greater than the second string, and a value less than 0 if the first string is less than the second string.<\/p>\n<p>Here is an example code:<\/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-number\">100<\/span>], str2[<span class=\"hljs-number\">100<\/span>];\r\n    <span class=\"hljs-type\">int<\/span> result;\r\n\r\n    <span class=\"hljs-built_in\">printf<\/span>(<span class=\"hljs-string\">\"\u8bf7\u8f93\u5165\u7b2c\u4e00\u4e2a\u5b57\u7b26\u4e32\uff1a\"<\/span>);\r\n    gets(str1);\r\n    <span class=\"hljs-built_in\">printf<\/span>(<span class=\"hljs-string\">\"\u8bf7\u8f93\u5165\u7b2c\u4e8c\u4e2a\u5b57\u7b26\u4e32\uff1a\"<\/span>);\r\n    gets(str2);\r\n\r\n    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 &gt; <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\u5927\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\u5c0f\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 gets() function is used in the above code to obtain the user input string, storing it in the specified character array.<\/p>\n<p>Next, compare two strings using the strcmp() function and store the comparison result in the variable result.<\/p>\n<p>Finally, output the judgment result based on the value of the result variable.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In the C language, the strcmp() function can be used to determine if two strings are equal. The strcmp() function will return an integer, with a return value of 0 if the two strings are equal, a value greater than 0 if the first string is greater than the second string, and a value less [&hellip;]<\/p>\n","protected":false},"author":5,"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-20266","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 does the C language determine strings? - 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-does-the-c-language-determine-strings\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How does the C language determine strings?\" \/>\n<meta property=\"og:description\" content=\"In the C language, the strcmp() function can be used to determine if two strings are equal. 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