{"id":13879,"date":"2024-03-15T08:03:22","date_gmt":"2024-03-15T08:03:22","guid":{"rendered":"https:\/\/www.silicloud.com\/blog\/how-to-add-values-to-a-dictionary-in-python-2\/"},"modified":"2025-08-06T00:40:43","modified_gmt":"2025-08-06T00:40:43","slug":"how-to-add-values-to-a-dictionary-in-python-2","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/blog\/how-to-add-values-to-a-dictionary-in-python-2\/","title":{"rendered":"Python Dictionary: How to Add Values"},"content":{"rendered":"<p>To add values to a dictionary, you can either use the assignment operator (=) or the dictionary&#8217;s update() method.<\/p>\n<p>Use the assignment operator (=).<\/p>\n<pre class=\"post-pre\"><code>my_dict = {}  <span class=\"hljs-comment\"># \u521b\u5efa\u4e00\u4e2a\u7a7a\u5b57\u5178<\/span>\r\nmy_dict[<span class=\"hljs-string\">'key1'<\/span>] = <span class=\"hljs-string\">'value1'<\/span>  <span class=\"hljs-comment\"># \u5411\u5b57\u5178\u4e2d\u6dfb\u52a0\u952e\u503c\u5bf9<\/span>\r\nmy_dict[<span class=\"hljs-string\">'key2'<\/span>] = <span class=\"hljs-string\">'value2'<\/span>\r\n<\/code><\/pre>\n<p>Utilizing the update() method:<\/p>\n<pre class=\"post-pre\"><code>my_dict = {}  <span class=\"hljs-comment\"># \u521b\u5efa\u4e00\u4e2a\u7a7a\u5b57\u5178<\/span>\r\nmy_dict.update({<span class=\"hljs-string\">'key1'<\/span>: <span class=\"hljs-string\">'value1'<\/span>, <span class=\"hljs-string\">'key2'<\/span>: <span class=\"hljs-string\">'value2'<\/span>})  <span class=\"hljs-comment\"># \u4f7f\u7528\u5b57\u5178\u7684update()\u65b9\u6cd5\u8fdb\u884c\u6dfb\u52a0<\/span>\r\n<\/code><\/pre>\n<p>If the key to be added already exists in the dictionary, the assignment operator (=) will update the corresponding value, while the update() method will not update the value.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>To add values to a dictionary, you can either use the assignment operator (=) or the dictionary&#8217;s update() method. Use the assignment operator (=). my_dict = {} # \u521b\u5efa\u4e00\u4e2a\u7a7a\u5b57\u5178 my_dict[&#8216;key1&#8217;] = &#8216;value1&#8217; # \u5411\u5b57\u5178\u4e2d\u6dfb\u52a0\u952e\u503c\u5bf9 my_dict[&#8216;key2&#8217;] = &#8216;value2&#8217; Utilizing the update() method: my_dict = {} # \u521b\u5efa\u4e00\u4e2a\u7a7a\u5b57\u5178 my_dict.update({&#8216;key1&#8217;: &#8216;value1&#8217;, &#8216;key2&#8217;: &#8216;value2&#8217;}) # \u4f7f\u7528\u5b57\u5178\u7684update()\u65b9\u6cd5\u8fdb\u884c\u6dfb\u52a0 If the key [&hellip;]<\/p>\n","protected":false},"author":10,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_import_markdown_pro_load_document_selector":0,"_import_markdown_pro_submit_text_textarea":"","footnotes":""},"categories":[1],"tags":[18657,224,1650,1648,212],"class_list":["post-13879","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-add-values-python","tag-data-structures","tag-dictionary-methods","tag-python-dictionary","tag-python-programming"],"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>Python Dictionary: How to Add Values - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" content=\"Learn 2 simple methods to add values to Python dictionaries (assignment &amp; update()). 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