{"id":19765,"date":"2024-03-15T19:25:39","date_gmt":"2024-03-15T19:25:39","guid":{"rendered":"https:\/\/www.silicloud.com\/blog\/how-to-use-if-statement-in-python\/"},"modified":"2024-03-21T16:29:00","modified_gmt":"2024-03-21T16:29:00","slug":"how-to-use-if-statement-in-python","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/blog\/how-to-use-if-statement-in-python\/","title":{"rendered":"How to use if statement in Python?"},"content":{"rendered":"<p>In Python, the if statement is used to execute different code blocks based on a condition. The basic syntax for the if statement is as follows:<\/p>\n<pre class=\"post-pre\"><code>if \u6761\u4ef6:\r\n    # \u6761\u4ef6\u4e3a\u771f\u65f6\u6267\u884c\u7684\u4ee3\u7801\u5757\r\nelse:\r\n    # \u6761\u4ef6\u4e3a\u5047\u65f6\u6267\u884c\u7684\u4ee3\u7801\u5757\r\n<\/code><\/pre>\n<p>Here is a simple example to determine if a number inputted by the user is positive.<\/p>\n<pre class=\"post-pre\"><code>num = <span class=\"hljs-built_in\">int<\/span>(<span class=\"hljs-built_in\">input<\/span>(<span class=\"hljs-string\">\"\u8bf7\u8f93\u5165\u4e00\u4e2a\u6570\u5b57\uff1a\"<\/span>))\r\n\r\n<span class=\"hljs-keyword\">if<\/span> num &gt; <span class=\"hljs-number\">0<\/span>:\r\n    <span class=\"hljs-built_in\">print<\/span>(<span class=\"hljs-string\">\"\u8f93\u5165\u7684\u6570\u5b57\u662f\u6b63\u6570\"<\/span>)\r\n<span class=\"hljs-keyword\">else<\/span>:\r\n    <span class=\"hljs-built_in\">print<\/span>(<span class=\"hljs-string\">\"\u8f93\u5165\u7684\u6570\u5b57\u4e0d\u662f\u6b63\u6570\"<\/span>)\r\n<\/code><\/pre>\n<p>In the example above, first call the input() function to get the number input from the user, then use the int() function to convert the input string to an integer. Next, use an if statement to check if the number is greater than 0. If it is, print &#8220;The input number is positive&#8221;, otherwise print &#8220;The input number is not positive&#8221;.<\/p>\n<p>In addition to using the &#8220;if&#8221; statement, you can also use the &#8220;elif&#8221; keyword to add multiple condition checks. For example, the following example determines the grade based on the user&#8217;s input score.<\/p>\n<pre class=\"post-pre\"><code>score = <span class=\"hljs-built_in\">int<\/span>(<span class=\"hljs-built_in\">input<\/span>(<span class=\"hljs-string\">\"\u8bf7\u8f93\u5165\u4f60\u7684\u6210\u7ee9\uff1a\"<\/span>))\r\n\r\n<span class=\"hljs-keyword\">if<\/span> score &gt;= <span class=\"hljs-number\">90<\/span>:\r\n    <span class=\"hljs-built_in\">print<\/span>(<span class=\"hljs-string\">\"\u4f60\u7684\u7b49\u7ea7\u662fA\"<\/span>)\r\n<span class=\"hljs-keyword\">elif<\/span> score &gt;= <span class=\"hljs-number\">80<\/span>:\r\n    <span class=\"hljs-built_in\">print<\/span>(<span class=\"hljs-string\">\"\u4f60\u7684\u7b49\u7ea7\u662fB\"<\/span>)\r\n<span class=\"hljs-keyword\">elif<\/span> score &gt;= <span class=\"hljs-number\">70<\/span>:\r\n    <span class=\"hljs-built_in\">print<\/span>(<span class=\"hljs-string\">\"\u4f60\u7684\u7b49\u7ea7\u662fC\"<\/span>)\r\n<span class=\"hljs-keyword\">elif<\/span> score &gt;= <span class=\"hljs-number\">60<\/span>:\r\n    <span class=\"hljs-built_in\">print<\/span>(<span class=\"hljs-string\">\"\u4f60\u7684\u7b49\u7ea7\u662fD\"<\/span>)\r\n<span class=\"hljs-keyword\">else<\/span>:\r\n    <span class=\"hljs-built_in\">print<\/span>(<span class=\"hljs-string\">\"\u4f60\u7684\u7b49\u7ea7\u662fE\"<\/span>)\r\n<\/code><\/pre>\n<p>In the example above, different grades are printed based on different score ranges. If the score is greater than or equal to 90, it will print an &#8220;A&#8221; grade; if the score is between 80 and 89, it will print a &#8220;B&#8221; grade, and so on. If the score is outside of any range, it will print an &#8220;E&#8221; grade.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In Python, the if statement is used to execute different code blocks based on a condition. The basic syntax for the if statement is as follows: if \u6761\u4ef6: # \u6761\u4ef6\u4e3a\u771f\u65f6\u6267\u884c\u7684\u4ee3\u7801\u5757 else: # \u6761\u4ef6\u4e3a\u5047\u65f6\u6267\u884c\u7684\u4ee3\u7801\u5757 Here is a simple example to determine if a number inputted by the user is positive. num = int(input(&#8220;\u8bf7\u8f93\u5165\u4e00\u4e2a\u6570\u5b57\uff1a&#8221;)) if num &gt; [&hellip;]<\/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-19765","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 use if statement in Python? - 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-use-if-statement-in-python\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How to use if statement in Python?\" \/>\n<meta property=\"og:description\" content=\"In Python, the if statement is used to execute different code blocks based on a condition. The basic syntax for the if statement is as follows: if \u6761\u4ef6: # \u6761\u4ef6\u4e3a\u771f\u65f6\u6267\u884c\u7684\u4ee3\u7801\u5757 else: # \u6761\u4ef6\u4e3a\u5047\u65f6\u6267\u884c\u7684\u4ee3\u7801\u5757 Here is a simple example to determine if a number inputted by the user is positive. num = int(input(&quot;\u8bf7\u8f93\u5165\u4e00\u4e2a\u6570\u5b57\uff1a&quot;)) if num &gt; [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/blog\/how-to-use-if-statement-in-python\/\" \/>\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=\"2024-03-15T19:25:39+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-03-21T16:29:00+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-use-if-statement-in-python\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/how-to-use-if-statement-in-python\/\"},\"author\":{\"name\":\"Benjamin Taylor\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/#\/schema\/person\/ac801fe9549a25960ce48aa2e0a691c9\"},\"headline\":\"How to use if statement in Python?\",\"datePublished\":\"2024-03-15T19:25:39+00:00\",\"dateModified\":\"2024-03-21T16:29:00+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/how-to-use-if-statement-in-python\/\"},\"wordCount\":200,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/#organization\"},\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/how-to-use-if-statement-in-python\/\",\"url\":\"https:\/\/www.silicloud.com\/blog\/how-to-use-if-statement-in-python\/\",\"name\":\"How to use if statement in Python? 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- 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-to-use-if-statement-in-python\/","og_locale":"en_US","og_type":"article","og_title":"How to use if statement in Python?","og_description":"In Python, the if statement is used to execute different code blocks based on a condition. The basic syntax for the if statement is as follows: if \u6761\u4ef6: # \u6761\u4ef6\u4e3a\u771f\u65f6\u6267\u884c\u7684\u4ee3\u7801\u5757 else: # \u6761\u4ef6\u4e3a\u5047\u65f6\u6267\u884c\u7684\u4ee3\u7801\u5757 Here is a simple example to determine if a number inputted by the user is positive. num = int(input(\"\u8bf7\u8f93\u5165\u4e00\u4e2a\u6570\u5b57\uff1a\")) if num &gt; [&hellip;]","og_url":"https:\/\/www.silicloud.com\/blog\/how-to-use-if-statement-in-python\/","og_site_name":"Blog - Silicon Cloud","article_publisher":"https:\/\/www.facebook.com\/SiliCloudGlobal\/","article_published_time":"2024-03-15T19:25:39+00:00","article_modified_time":"2024-03-21T16:29:00+00:00","author":"Benjamin Taylor","twitter_card":"summary_large_image","twitter_creator":"@SiliCloudGlobal","twitter_site":"@SiliCloudGlobal","twitter_misc":{"Written by":"Benjamin Taylor","Est. reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.silicloud.com\/blog\/how-to-use-if-statement-in-python\/#article","isPartOf":{"@id":"https:\/\/www.silicloud.com\/blog\/how-to-use-if-statement-in-python\/"},"author":{"name":"Benjamin Taylor","@id":"https:\/\/www.silicloud.com\/blog\/#\/schema\/person\/ac801fe9549a25960ce48aa2e0a691c9"},"headline":"How to use if statement in Python?","datePublished":"2024-03-15T19:25:39+00:00","dateModified":"2024-03-21T16:29:00+00:00","mainEntityOfPage":{"@id":"https:\/\/www.silicloud.com\/blog\/how-to-use-if-statement-in-python\/"},"wordCount":200,"commentCount":0,"publisher":{"@id":"https:\/\/www.silicloud.com\/blog\/#organization"},"inLanguage":"en-US"},{"@type":"WebPage","@id":"https:\/\/www.silicloud.com\/blog\/how-to-use-if-statement-in-python\/","url":"https:\/\/www.silicloud.com\/blog\/how-to-use-if-statement-in-python\/","name":"How to use if statement in Python? 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