{"id":25598,"date":"2024-03-16T05:17:14","date_gmt":"2024-03-16T05:17:14","guid":{"rendered":"https:\/\/www.silicloud.com\/blog\/how-to-use-the-del-function-in-python\/"},"modified":"2024-03-22T06:33:42","modified_gmt":"2024-03-22T06:33:42","slug":"how-to-use-the-del-function-in-python","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/blog\/how-to-use-the-del-function-in-python\/","title":{"rendered":"How to use the del function in Python"},"content":{"rendered":"

In Python, ‘del’ is a keyword used for deleting objects or elements of objects. It has several common usages:<\/p>\n

    \n
  1. remove <\/li>\n<\/ol>\n
    x = 10<\/span>\r\ndel<\/span> x  # \u5220\u9664\u53d8\u91cfx<\/span>\r\n<\/code><\/pre>\n
      \n
    1. delete element at index  in list <\/li>\n<\/ol>\n
      my_list = [1<\/span>, 2<\/span>, 3<\/span>, 4<\/span>, 5<\/span>]\r\ndel<\/span> my_list[2<\/span>]  # \u5220\u9664\u7d22\u5f15\u4e3a2\u7684\u5143\u7d20\uff0c\u5373\u5220\u9664\u5217\u8868\u4e2d\u7684\u6570\u5b573<\/span>\r\n<\/code><\/pre>\n
        \n
      1. delete []<\/li>\n<\/ol>\n
        my_dict = {'a'<\/span>: 1<\/span>, 'b'<\/span>: 2<\/span>, 'c'<\/span>: 3<\/span>}\r\ndel<\/span> my_dict['b'<\/span>]  # \u5220\u9664\u952e\u4e3a'b'\u7684\u952e\u503c\u5bf9\uff0c\u5373\u5220\u9664\u5b57\u5178\u4e2d\u7684\u952e'b'<\/span>\r\n<\/code><\/pre>\n
          \n
        1. delete the .<\/li>\n<\/ol>\n
          class<\/span> MyClass<\/span>:\r\n    def<\/span> __init__<\/span>(self<\/span>):\r\n        self.x = 10<\/span>\r\n        self.y = 20<\/span>\r\n\r\nobj = MyClass()\r\ndel<\/span> obj.x  # \u5220\u9664\u5bf9\u8c61obj\u7684\u5c5e\u6027x<\/span>\r\n<\/code><\/pre>\n
          It is important to note that ‘del’ only deletes the reference to an object, it does not delete the object itself. The object will be garbage collected when there are no references to it, freeing up memory space.<\/p>\n","protected":false},"excerpt":{"rendered":"
          In Python, ‘del’ is a keyword used for deleting objects or elements of objects. It has several common usages: remove x = 10 del x # \u5220\u9664\u53d8\u91cfx delete element at index in list my_list = [1, 2, 3, 4, 5] del my_list[2] # \u5220\u9664\u7d22\u5f15\u4e3a2\u7684\u5143\u7d20\uff0c\u5373\u5220\u9664\u5217\u8868\u4e2d\u7684\u6570\u5b573 delete [] my_dict = {‘a’: 1, ‘b’: 2, ‘c’: 3} del […]<\/p>\n","protected":false},"author":11,"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-25598","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"\nHow to use the del function 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-the-del-function-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 the del function in Python\" \/>\n<meta property=\"og:description\" content=\"In Python, ‘del’ is a keyword used for deleting objects or elements of objects. It has several common usages: remove x = 10 del x # \u5220\u9664\u53d8\u91cfx delete element at index in list my_list = [1, 2, 3, 4, 5] del my_list[2] # \u5220\u9664\u7d22\u5f15\u4e3a2\u7684\u5143\u7d20\uff0c\u5373\u5220\u9664\u5217\u8868\u4e2d\u7684\u6570\u5b573 delete [] my_dict = {'a': 1, 'b': 2, 'c': 3} del […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/blog\/how-to-use-the-del-function-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=\"2024-03-16T05:17:14+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-03-22T06:33:42+00:00\" \/>\n<meta name=\"author\" content=\"Olivia Parker\" \/>\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=\"Olivia Parker\" \/>\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-the-del-function-in-python\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/how-to-use-the-del-function-in-python\/\"},\"author\":{\"name\":\"Olivia Parker\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/#\/schema\/person\/3ff7b3da0e45ac5dbbef2502f3cea8d9\"},\"headline\":\"How to use the del function in Python\",\"datePublished\":\"2024-03-16T05:17:14+00:00\",\"dateModified\":\"2024-03-22T06:33:42+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/how-to-use-the-del-function-in-python\/\"},\"wordCount\":75,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/#organization\"},\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/how-to-use-the-del-function-in-python\/\",\"url\":\"https:\/\/www.silicloud.com\/blog\/how-to-use-the-del-function-in-python\/\",\"name\":\"How to use the del function in Python - 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