{"id":1698,"date":"2020-06-22T16:56:48","date_gmt":"2020-06-22T08:56:48","guid":{"rendered":"http:\/\/39.97.231.10\/?p=1698"},"modified":"2020-06-22T16:56:48","modified_gmt":"2020-06-22T08:56:48","slug":"python%e5%88%97%e8%a1%a8%e7%9a%84index%e6%96%b9%e6%b3%95","status":"publish","type":"post","link":"http:\/\/www.weijing.co\/?p=1698","title":{"rendered":"Python \u5217\u8868\u7684 index() \u65b9\u6cd5"},"content":{"rendered":"<div>\n\u5217\u8868\u5bf9\u8c61\u62e5\u6709\u4e00\u4e2a index() \u65b9\u6cd5\uff0c \u5b83\u63a5\u53d7\u4e00\u4e2a\u503c\uff0c \u5982\u679c\u8be5\u503c\u5b58\u5728\u4e8e\u8be5\u5217\u8868\u5bf9\u8c61\u4e2d\uff0c \u5c31\u8fd4\u56de\u5b83\u7684\u4e0b\u6807\u7d22\u5f15\u503c\uff1a<\/p>\n<div>\n<pre>books = [\\'\u68a6\u7684\u5316\u77f3\\', \\'\u51ac\u6cf3\\', \\'\u9c7c\u7fc5\u4e0e\u82b1\u6912\\']\nprint(books.index(\\'\u51ac\u6cf3\\'))\n<\/pre>\n<\/div>\n<p>\u8fd0\u884c\u7ed3\u679c\uff1a<\/p>\n<blockquote><p>1<\/p><\/blockquote>\n<p>\u5982\u679c\u5217\u8868\u5bf9\u8c61\u4e2d\u5b58\u5728\u91cd\u590d\u7684\u503c\uff0c \u5c31\u53ea\u8fd4\u56de\u7b2c\u4e00\u6b21\u67e5\u8be2\u5230\u7684\u503c\u6240\u5bf9\u5e94\u7684\u4e0b\u6807\u7d22\u5f15\uff1a<\/p>\n<div>\n<pre>books = [\\'\u68a6\u7684\u5316\u77f3\\', \\'\u51ac\u6cf3\\', \\'\u9c7c\u7fc5\u4e0e\u82b1\u6912\\',\\'\u51ac\u6cf3\\']\nprint(books.index(\\'\u51ac\u6cf3\\'))\n<\/pre>\n<\/div>\n<p>\u8fd0\u884c\u7ed3\u679c\uff1a<\/p>\n<blockquote><p>1<\/p><\/blockquote>\n<p>\u5982\u679c\u4f20\u5165\u7684\u503c\u4e0d\u5728\u5217\u8868\u4e2d\uff0c\u90a3\u4e48\u5c31\u4f1a\u629b\u51fa ValueError\uff1a<\/p>\n<div>\n<pre>print(books.index(\\'\u83ab\u65af\u79d1\\'))\n<\/pre>\n<\/div>\n<p>\u8fd0\u884c\u7ed3\u679c\uff1a<\/p>\n<blockquote><p>ValueError: \\&#8217;\u83ab\u65af\u79d1\\&#8217; is not in list<\/p><\/blockquote>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u5217\u8868\u5bf9\u8c61\u62e5\u6709\u4e00\u4e2a index() \u65b9\u6cd5\uff0c \u5b83\u63a5\u53d7\u4e00\u4e2a\u503c\uff0c \u5982\u679c\u8be5\u503c\u5b58\u5728\u4e8e\u8be5\u5217\u8868\u5bf9\u8c61\u4e2d\uff0c \u5c31\u8fd4\u56de\u5b83\u7684\u4e0b\u6807\u7d22\u5f15\u503c\uff1a &hellip;<\/p>\n<p class=\"read-more\"> <a class=\"\" href=\"http:\/\/www.weijing.co\/?p=1698\"> <span class=\"screen-reader-text\">Python \u5217\u8868\u7684 index() \u65b9\u6cd5<\/span> \u67e5\u770b\u5168\u6587 &raquo;<\/a><\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"default","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":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":""},"categories":[106,126],"tags":[],"uagb_featured_image_src":{"full":false,"thumbnail":false,"medium":false,"medium_large":false,"large":false,"1536x1536":false,"2048x2048":false,"mailpoet_newsletter_max":false,"woocommerce_thumbnail":false,"woocommerce_single":false,"woocommerce_gallery_thumbnail":false,"shop_catalog":false,"shop_single":false,"shop_thumbnail":false},"uagb_author_info":{"display_name":"weijing","author_link":"http:\/\/www.weijing.co\/?author=4"},"uagb_comment_info":0,"uagb_excerpt":"\u5217\u8868\u5bf9\u8c61\u62e5\u6709\u4e00\u4e2a index() \u65b9\u6cd5\uff0c \u5b83\u63a5\u53d7\u4e00\u4e2a\u503c\uff0c \u5982\u679c\u8be5\u503c\u5b58\u5728\u4e8e\u8be5\u5217\u8868\u5bf9\u8c61\u4e2d\uff0c \u5c31\u8fd4\u56de\u5b83\u7684\u4e0b\u6807\u7d22\u5f15\u503c\uff1a&hellip;","_links":{"self":[{"href":"http:\/\/www.weijing.co\/index.php?rest_route=\/wp\/v2\/posts\/1698"}],"collection":[{"href":"http:\/\/www.weijing.co\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.weijing.co\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.weijing.co\/index.php?rest_route=\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"http:\/\/www.weijing.co\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1698"}],"version-history":[{"count":0,"href":"http:\/\/www.weijing.co\/index.php?rest_route=\/wp\/v2\/posts\/1698\/revisions"}],"wp:attachment":[{"href":"http:\/\/www.weijing.co\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1698"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.weijing.co\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1698"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.weijing.co\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1698"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}