{"id":26721,"date":"2024-03-16T07:11:40","date_gmt":"2024-03-16T07:11:40","guid":{"rendered":"https:\/\/www.silicloud.com\/blog\/how-is-the-c-pair-used\/"},"modified":"2024-03-22T09:16:19","modified_gmt":"2024-03-22T09:16:19","slug":"how-is-the-c-pair-used","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/blog\/how-is-the-c-pair-used\/","title":{"rendered":"How is the C++ pair used?"},"content":{"rendered":"

In C++, pair is a template class used for combining two different types of values into a single unit, making it easy to pass, return, or store the two values together.<\/p>\n

The use of the word “pair” is as follows:<\/p>\n

    \n
  1. couple<\/li>\n
  2. create a new pair.<\/li>\n
  3. couple<\/li>\n<\/ol>\n
    pair<int<\/span>, string> p1; \/\/ \u9ed8\u8ba4\u6784\u9020\u51fd\u6570\uff0cint\u548cstring\u7c7b\u578b<\/span>\r\np1 = make_pair<\/span>(10<\/span>, \"hello\"<\/span>); \/\/ \u4f7f\u7528make_pair\u51fd\u6570\u521b\u5efapair\u5bf9\u8c61<\/span>\r\npair<int<\/span>, string> p2<\/span>(20<\/span>, \"world\"<\/span>)<\/span><\/span>; \/\/ \u4f7f\u7528\u82b1\u62ec\u53f7\u521d\u59cb\u5316\u5668\u521b\u5efapair\u5bf9\u8c61<\/span>\r\n<\/code><\/pre>\n
      \n
    1. two of something<\/li>\n
    2. Initially<\/li>\n
    3. the next one<\/li>\n
    4. couple<\/li>\n<\/ol>\n
      int<\/span> val1 = p1.first; \/\/ \u83b7\u53d6pair\u7684\u7b2c\u4e00\u4e2a\u5143\u7d20<\/span>\r\nstring val2 = p1.second; \/\/ \u83b7\u53d6pair\u7684\u7b2c\u4e8c\u4e2a\u5143\u7d20<\/span>\r\n<\/code><\/pre>\n
        \n
      1. two items that are matched or meant to be used together<\/li>\n
      2. couple<\/li>\n<\/ol>\n
        p1.first = 30<\/span>; \/\/ \u4fee\u6539pair\u7684\u7b2c\u4e00\u4e2a\u5143\u7d20<\/span>\r\np1.second = \"world\"<\/span>; \/\/ \u4fee\u6539pair\u7684\u7b2c\u4e8c\u4e2a\u5143\u7d20<\/span>\r\n<\/code><\/pre>\n
          \n
        1. couple<\/li>\n
        2. two items that go together<\/li>\n
        3. couple<\/li>\n<\/ol>\n
          bool<\/span> result = (p1 < p2); \/\/ \u5224\u65adp1\u662f\u5426\u5c0f\u4e8ep2\uff0c\u6309\u7167\u5b57\u5178\u987a\u5e8f\u5224\u65ad<\/span>\r\n<\/code><\/pre>\n
            \n
          1. couple<\/li>\n
          2. a couple<\/li>\n
          3. vector – an array or list of elements designed to represent direction and magnitude in mathematical or physical contexts<\/li>\n
          4. Cartography is the art and science of creating maps.<\/li>\n<\/ol>\n
            vector<pair<int<\/span>, string>> vec; \/\/ \u4f7f\u7528vector\u5b58\u50a8\u591a\u4e2apair\u5bf9\u8c61<\/span>\r\nvec.push_back<\/span>(make_pair<\/span>(10<\/span>, \"hello\"<\/span>)); \/\/ \u5411vector\u4e2d\u6dfb\u52a0pair\u5bf9\u8c61<\/span>\r\npair<int<\/span>, string> val = vec[0<\/span>]; \/\/ \u4ecevector\u4e2d\u83b7\u53d6pair\u5bf9\u8c61<\/span>\r\n<\/code><\/pre>\n
            In summary, the use of pairs combines two different types of values together for easy passing, returning, storing, and comparing operations.<\/p>\n","protected":false},"excerpt":{"rendered":"
            In C++, pair is a template class used for combining two different types of values into a single unit, making it easy to pass, return, or store the two values together. The use of the word “pair” is as follows: couple create a new pair. couple pair<int, string> p1; \/\/ \u9ed8\u8ba4\u6784\u9020\u51fd\u6570\uff0cint\u548cstring\u7c7b\u578b p1 = make_pair(10, “hello”); […]<\/p>\n","protected":false},"author":10,"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-26721","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"\nHow is the C++ pair used? - 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-is-the-c-pair-used\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How is the C++ pair used?\" \/>\n<meta property=\"og:description\" content=\"In C++, pair is a template class used for combining two different types of values into a single unit, making it easy to pass, return, or store the two values together. The use of the word “pair” is as follows: couple create a new pair. couple pair<int, string> p1; \/\/ \u9ed8\u8ba4\u6784\u9020\u51fd\u6570\uff0cint\u548cstring\u7c7b\u578b p1 = make_pair(10, "hello"); […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/blog\/how-is-the-c-pair-used\/\" \/>\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=\"2024-03-16T07:11:40+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-03-22T09:16:19+00:00\" \/>\n<meta name=\"author\" content=\"Jackson Davis\" \/>\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=\"Jackson Davis\" \/>\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-is-the-c-pair-used\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/how-is-the-c-pair-used\/\"},\"author\":{\"name\":\"Jackson Davis\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/#\/schema\/person\/55a10b8b0457c35884c25677889ad350\"},\"headline\":\"How is the C++ pair used?\",\"datePublished\":\"2024-03-16T07:11:40+00:00\",\"dateModified\":\"2024-03-22T09:16:19+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/how-is-the-c-pair-used\/\"},\"wordCount\":131,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/#organization\"},\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/how-is-the-c-pair-used\/\",\"url\":\"https:\/\/www.silicloud.com\/blog\/how-is-the-c-pair-used\/\",\"name\":\"How is the C++ pair used? - Blog - Silicon Cloud\",\"isPartOf\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/#website\"},\"datePublished\":\"2024-03-16T07:11:40+00:00\",\"dateModified\":\"2024-03-22T09:16:19+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/how-is-the-c-pair-used\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.silicloud.com\/blog\/how-is-the-c-pair-used\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/how-is-the-c-pair-used\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/www.silicloud.com\/blog\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"How is the C++ pair used?\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/#website\",\"url\":\"https:\/\/www.silicloud.com\/blog\/\",\"name\":\"Silicon Cloud Blog\",\"description\":\"\",\"publisher\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/#organization\"},\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/#organization\",\"name\":\"Silicon Cloud Blog\",\"url\":\"https:\/\/www.silicloud.com\/blog\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/www.silicloud.com\/blog\/wp-content\/uploads\/2023\/11\/EN-SILICON-Full.png\",\"contentUrl\":\"https:\/\/www.silicloud.com\/blog\/wp-content\/uploads\/2023\/11\/EN-SILICON-Full.png\",\"width\":1024,\"height\":1024,\"caption\":\"Silicon Cloud Blog\"},\"image\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/#\/schema\/logo\/image\/\"},\"sameAs\":[\"https:\/\/www.facebook.com\/SiliCloudGlobal\/\",\"https:\/\/twitter.com\/SiliCloudGlobal\"]},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/#\/schema\/person\/55a10b8b0457c35884c25677889ad350\",\"name\":\"Jackson Davis\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/2fdb47d6df1226e92380d96973782572a97b0675d098bb914410dec348eb5d29?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/2fdb47d6df1226e92380d96973782572a97b0675d098bb914410dec348eb5d29?s=96&d=mm&r=g\",\"caption\":\"Jackson Davis\"},\"url\":\"https:\/\/www.silicloud.com\/blog\/author\/jacksondavis\/\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"How is the C++ pair used? - Blog - Silicon Cloud","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.silicloud.com\/blog\/how-is-the-c-pair-used\/","og_locale":"en_US","og_type":"article","og_title":"How is the C++ pair used?","og_description":"In C++, pair is a template class used for combining two different types of values into a single unit, making it easy to pass, return, or store the two values together. The use of the word “pair” is as follows: couple create a new pair. couple pair<int, string> p1; \/\/ \u9ed8\u8ba4\u6784\u9020\u51fd\u6570\uff0cint\u548cstring\u7c7b\u578b p1 = make_pair(10, \"hello\"); […]","og_url":"https:\/\/www.silicloud.com\/blog\/how-is-the-c-pair-used\/","og_site_name":"Blog - Silicon Cloud","article_publisher":"https:\/\/www.facebook.com\/SiliCloudGlobal\/","article_published_time":"2024-03-16T07:11:40+00:00","article_modified_time":"2024-03-22T09:16:19+00:00","author":"Jackson Davis","twitter_card":"summary_large_image","twitter_creator":"@SiliCloudGlobal","twitter_site":"@SiliCloudGlobal","twitter_misc":{"Written by":"Jackson Davis","Est. reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.silicloud.com\/blog\/how-is-the-c-pair-used\/#article","isPartOf":{"@id":"https:\/\/www.silicloud.com\/blog\/how-is-the-c-pair-used\/"},"author":{"name":"Jackson Davis","@id":"https:\/\/www.silicloud.com\/blog\/#\/schema\/person\/55a10b8b0457c35884c25677889ad350"},"headline":"How is the C++ pair used?","datePublished":"2024-03-16T07:11:40+00:00","dateModified":"2024-03-22T09:16:19+00:00","mainEntityOfPage":{"@id":"https:\/\/www.silicloud.com\/blog\/how-is-the-c-pair-used\/"},"wordCount":131,"commentCount":0,"publisher":{"@id":"https:\/\/www.silicloud.com\/blog\/#organization"},"inLanguage":"en-US"},{"@type":"WebPage","@id":"https:\/\/www.silicloud.com\/blog\/how-is-the-c-pair-used\/","url":"https:\/\/www.silicloud.com\/blog\/how-is-the-c-pair-used\/","name":"How is the C++ pair used? - Blog - Silicon Cloud","isPartOf":{"@id":"https:\/\/www.silicloud.com\/blog\/#website"},"datePublished":"2024-03-16T07:11:40+00:00","dateModified":"2024-03-22T09:16:19+00:00","breadcrumb":{"@id":"https:\/\/www.silicloud.com\/blog\/how-is-the-c-pair-used\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.silicloud.com\/blog\/how-is-the-c-pair-used\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/www.silicloud.com\/blog\/how-is-the-c-pair-used\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.silicloud.com\/blog\/"},{"@type":"ListItem","position":2,"name":"How is the C++ pair used?"}]},{"@type":"WebSite","@id":"https:\/\/www.silicloud.com\/blog\/#website","url":"https:\/\/www.silicloud.com\/blog\/","name":"Silicon Cloud Blog","description":"","publisher":{"@id":"https:\/\/www.silicloud.com\/blog\/#organization"},"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/www.silicloud.com\/blog\/#organization","name":"Silicon Cloud Blog","url":"https:\/\/www.silicloud.com\/blog\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.silicloud.com\/blog\/#\/schema\/logo\/image\/","url":"https:\/\/www.silicloud.com\/blog\/wp-content\/uploads\/2023\/11\/EN-SILICON-Full.png","contentUrl":"https:\/\/www.silicloud.com\/blog\/wp-content\/uploads\/2023\/11\/EN-SILICON-Full.png","width":1024,"height":1024,"caption":"Silicon Cloud Blog"},"image":{"@id":"https:\/\/www.silicloud.com\/blog\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/SiliCloudGlobal\/","https:\/\/twitter.com\/SiliCloudGlobal"]},{"@type":"Person","@id":"https:\/\/www.silicloud.com\/blog\/#\/schema\/person\/55a10b8b0457c35884c25677889ad350","name":"Jackson Davis","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.silicloud.com\/blog\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/2fdb47d6df1226e92380d96973782572a97b0675d098bb914410dec348eb5d29?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/2fdb47d6df1226e92380d96973782572a97b0675d098bb914410dec348eb5d29?s=96&d=mm&r=g","caption":"Jackson Davis"},"url":"https:\/\/www.silicloud.com\/blog\/author\/jacksondavis\/"}]}},"_links":{"self":[{"href":"https:\/\/www.silicloud.com\/blog\/wp-json\/wp\/v2\/posts\/26721","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.silicloud.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.silicloud.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.silicloud.com\/blog\/wp-json\/wp\/v2\/users\/10"}],"replies":[{"embeddable":true,"href":"https:\/\/www.silicloud.com\/blog\/wp-json\/wp\/v2\/comments?post=26721"}],"version-history":[{"count":1,"href":"https:\/\/www.silicloud.com\/blog\/wp-json\/wp\/v2\/posts\/26721\/revisions"}],"predecessor-version":[{"id":60902,"href":"https:\/\/www.silicloud.com\/blog\/wp-json\/wp\/v2\/posts\/26721\/revisions\/60902"}],"wp:attachment":[{"href":"https:\/\/www.silicloud.com\/blog\/wp-json\/wp\/v2\/media?parent=26721"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.silicloud.com\/blog\/wp-json\/wp\/v2\/categories?post=26721"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.silicloud.com\/blog\/wp-json\/wp\/v2\/tags?post=26721"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}