{"id":23345,"date":"2024-03-16T01:12:21","date_gmt":"2024-03-16T01:12:21","guid":{"rendered":"https:\/\/www.silicloud.com\/blog\/how-to-input-strings-in-the-c-language\/"},"modified":"2024-03-22T01:02:50","modified_gmt":"2024-03-22T01:02:50","slug":"how-to-input-strings-in-the-c-language","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/blog\/how-to-input-strings-in-the-c-language\/","title":{"rendered":"How to input strings in the C language?"},"content":{"rendered":"

In the C language, strings can be input in several ways:<\/p>\n

    \n
  1. Using a character array: You can declare a character array large enough to store a string, and then use the scanf function or gets function to read the string from standard input. For example:<\/li>\n<\/ol>\n
    #include<\/span> <stdio.h><\/span><\/span>\r\n\r\nint<\/span> main<\/span>()<\/span> {\r\n    char<\/span> str[100<\/span>]; \/\/ \u58f0\u660e\u4e00\u4e2a\u5b57\u7b26\u6570\u7ec4\uff0c\u5927\u5c0f\u4e3a100<\/span>\r\n    printf<\/span>(\"\u8bf7\u8f93\u5165\u5b57\u7b26\u4e32\uff1a\"<\/span>);\r\n    scanf<\/span>(\"%s\"<\/span>, str); \/\/ \u4f7f\u7528scanf\u51fd\u6570\u8bfb\u53d6\u5b57\u7b26\u4e32<\/span>\r\n    printf<\/span>(\"\u8f93\u5165\u7684\u5b57\u7b26\u4e32\u662f\uff1a%s\\n\"<\/span>, str);\r\n    return<\/span> 0<\/span>;\r\n}\r\n<\/code><\/pre>\n
      \n
    1. By using pointers, you can declare a pointer variable, allocate a certain amount of memory space using the malloc function, and then read in a string from standard input using the scanf or gets function. For example:<\/li>\n<\/ol>\n
      #include<\/span> <stdio.h><\/span><\/span>\r\n#include<\/span> <stdlib.h><\/span><\/span>\r\n\r\nint<\/span> main<\/span>()<\/span> {\r\n    char<\/span> *str; \/\/ \u58f0\u660e\u4e00\u4e2a\u6307\u9488\u53d8\u91cf<\/span>\r\n    str = (char<\/span> *)malloc<\/span>(100<\/span> * sizeof<\/span>(char<\/span>)); \/\/ \u5206\u914d100\u4e2a\u5b57\u7b26\u5927\u5c0f\u7684\u5185\u5b58\u7a7a\u95f4<\/span>\r\n    printf<\/span>(\"\u8bf7\u8f93\u5165\u5b57\u7b26\u4e32\uff1a\"<\/span>);\r\n    gets(str); \/\/ \u4f7f\u7528gets\u51fd\u6570\u8bfb\u53d6\u5b57\u7b26\u4e32<\/span>\r\n    printf<\/span>(\"\u8f93\u5165\u7684\u5b57\u7b26\u4e32\u662f\uff1a%s\\n\"<\/span>, str);\r\n    free<\/span>(str); \/\/ \u91ca\u653e\u5185\u5b58\u7a7a\u95f4<\/span>\r\n    return<\/span> 0<\/span>;\r\n}\r\n<\/code><\/pre>\n
      It is important to ensure that the allocated memory space is large enough when using the gets function to avoid overflow. Additionally, since the gets function has been marked as unsafe, it is recommended to use the safer fgets function instead.<\/p>\n","protected":false},"excerpt":{"rendered":"
      In the C language, strings can be input in several ways: Using a character array: You can declare a character array large enough to store a string, and then use the scanf function or gets function to read the string from standard input. For example: #include <stdio.h> int main() { char str[100]; \/\/ \u58f0\u660e\u4e00\u4e2a\u5b57\u7b26\u6570\u7ec4\uff0c\u5927\u5c0f\u4e3a100 printf(“\u8bf7\u8f93\u5165\u5b57\u7b26\u4e32\uff1a”); […]<\/p>\n","protected":false},"author":6,"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-23345","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"\nHow to input strings 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-input-strings-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 input strings in the C language?\" \/>\n<meta property=\"og:description\" content=\"In the C language, strings can be input in several ways: Using a character array: You can declare a character array large enough to store a string, and then use the scanf function or gets function to read the string from standard input. For example: #include <stdio.h> int main() { char str[100]; \/\/ \u58f0\u660e\u4e00\u4e2a\u5b57\u7b26\u6570\u7ec4\uff0c\u5927\u5c0f\u4e3a100 printf("\u8bf7\u8f93\u5165\u5b57\u7b26\u4e32\uff1a"); […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/blog\/how-to-input-strings-in-the-c-language\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - Silicon Cloud\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/SiliCloudGlobal\/\" \/>\n<meta property=\"article:published_time\" content=\"2024-03-16T01:12:21+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-03-22T01:02:50+00:00\" \/>\n<meta name=\"author\" content=\"Benjamin Taylor\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@SiliCloudGlobal\" \/>\n<meta name=\"twitter:site\" content=\"@SiliCloudGlobal\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Benjamin Taylor\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/how-to-input-strings-in-the-c-language\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/how-to-input-strings-in-the-c-language\/\"},\"author\":{\"name\":\"Benjamin Taylor\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/#\/schema\/person\/ac801fe9549a25960ce48aa2e0a691c9\"},\"headline\":\"How to input strings in the C language?\",\"datePublished\":\"2024-03-16T01:12:21+00:00\",\"dateModified\":\"2024-03-22T01:02:50+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/how-to-input-strings-in-the-c-language\/\"},\"wordCount\":131,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/#organization\"},\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/how-to-input-strings-in-the-c-language\/\",\"url\":\"https:\/\/www.silicloud.com\/blog\/how-to-input-strings-in-the-c-language\/\",\"name\":\"How to input strings in the C language? 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