{"id":280,"date":"2022-01-04T17:28:00","date_gmt":"2022-01-04T09:28:00","guid":{"rendered":""},"modified":"2023-01-17T17:01:37","modified_gmt":"2023-01-17T09:01:37","slug":"python%e5%ad%b8%e7%bf%92%e7%ad%86%e8%a8%98%ef%bc%9a%e5%b0%87dataframe-%e6%9f%90%e4%b8%80%e6%ac%84%e4%b8%ad%e7%9a%84list%e8%bd%89%e6%8f%9b%e6%88%90%e5%ad%97%e4%b8%b2%e6%ba%90%e8%87%aastackoverflow","status":"publish","type":"post","link":"https:\/\/kuo.us.to\/wordpress\/python%e5%ad%b8%e7%bf%92%e7%ad%86%e8%a8%98\/280\/","title":{"rendered":"Python\u5b78\u7fd2\u7b46\u8a18\uff1a\u5c07Dataframe \u67d0\u4e00\u6b04\u4e2d\u7684List\u8f49\u63db\u6210\u5b57\u4e32(\u6e90\u81eastackoverflow)"},"content":{"rendered":"

 \u554f\u984c\uff1a<\/p>\n

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import<\/span> pandas<\/span> as<\/span> pd<\/span>\n\nlists<\/span>=<\/span>{<\/span>1<\/span>:[[<\/span>1<\/span>,<\/span>2<\/span>,<\/span>12<\/span>,<\/span>6<\/span>,<\/span>'ABC'<\/span>]],<\/span>2<\/span>:[[<\/span>1000<\/span>,<\/span>4<\/span>,<\/span>'z'<\/span>,<\/span>'a'<\/span>]]}<\/span>\n#create test dataframe<\/span>\ndf<\/span>=<\/span>pd<\/span>.<\/span>DataFrame<\/span>.<\/span>from_dict<\/span>(<\/span>lists<\/span>,<\/span>orient<\/span>=<\/span>'index'<\/span>)<\/span>\ndf<\/span>=<\/span>df<\/span>.<\/span>rename<\/span>(<\/span>columns<\/span>=<\/span>{<\/span>0<\/span>:<\/span>'lists'<\/span>})<\/span>\n\ndf<\/span>\n<\/pre>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
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Out[1]:<\/div>\n
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<\/th>\nlists<\/th>\n<\/tr>\n<\/thead>\n
1<\/th>\n[1, 2, 12, 6, ABC]<\/td>\n<\/tr>\n
2<\/th>\n[1000, 4, z, a]<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
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<\/span># \u7b2c\u4e00\u7a2e\u89e3\u6cd5\uff1a<\/span>\ndf<\/span>[<\/span>'liststring'<\/span>]<\/span> =<\/span> [<\/span>','<\/span>.<\/span>join<\/span>(<\/span>map<\/span>(<\/span>str<\/span>,<\/span> l<\/span>))<\/span> for<\/span> l<\/span> in<\/span> df<\/span>[<\/span>'lists'<\/span>]]<\/span>\ndf<\/span>\n<\/pre>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
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Out[2]:<\/div>\n
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<\/th>\nlists<\/th>\nliststring<\/th>\n<\/tr>\n<\/thead>\n
1<\/th>\n[1, 2, 12, 6, ABC]<\/td>\n1,2,12,6,ABC<\/td>\n<\/tr>\n
2<\/th>\n[1000, 4, z, a]<\/td>\n1000,4,z,a<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
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In [3]:<\/div>\n
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<\/span># \u7b2c\u4e8c\u7a2e\u89e3\u6cd5\uff1a<\/span>\ndf<\/span>[<\/span>'liststring'<\/span>]<\/span> =<\/span> df<\/span>.<\/span>lists<\/span>.<\/span>apply<\/span>(<\/span>lambda<\/span> x<\/span>:<\/span> ', '<\/span>.<\/span>join<\/span>([<\/span>str<\/span>(<\/span>i<\/span>)<\/span> for<\/span> i<\/span> in<\/span> x<\/span>]))<\/span>\ndf<\/span>\n<\/pre>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
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Out[3]:<\/div>\n
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<\/th>\nlists<\/th>\nliststring<\/th>\n<\/tr>\n<\/thead>\n
1<\/th>\n[1, 2, 12, 6, ABC]<\/td>\n1, 2, 12, 6, ABC<\/td>\n<\/tr>\n
2<\/th>\n[1000, 4, z, a]<\/td>\n1000, 4, z, a<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
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 \u554f\u984c\uff1a \u76ee\u6a19\uff1a import pandas as pd lists={1:[[1,2,12,6,’ […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"advgb_blocks_editor_width":"","advgb_blocks_columns_visual_guide":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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