{"id":101984,"date":"2024-03-22T04:44:03","date_gmt":"2024-03-21T19:44:03","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/%e9%85%8d%e5%88%97%e3%81%ae%e8%a6%81%e7%b4%a0%e3%81%ae%e3%82%a4%e3%83%b3%e3%83%87%e3%83%83%e3%82%af%e3%82%b9%e3%82%92%e8%aa%bf%e3%81%b9%e3%82%8b\/"},"modified":"2024-03-27T05:04:52","modified_gmt":"2024-03-26T20:04:52","slug":"%e9%85%8d%e5%88%97%e3%81%ae%e8%a6%81%e7%b4%a0%e3%81%ae%e3%82%a4%e3%83%b3%e3%83%87%e3%83%83%e3%82%af%e3%82%b9%e3%82%92%e8%aa%bf%e3%81%b9%e3%82%8b","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/ja\/blog\/%e9%85%8d%e5%88%97%e3%81%ae%e8%a6%81%e7%b4%a0%e3%81%ae%e3%82%a4%e3%83%b3%e3%83%87%e3%83%83%e3%82%af%e3%82%b9%e3%82%92%e8%aa%bf%e3%81%b9%e3%82%8b\/","title":{"rendered":"\u914d\u5217\u306e\u8981\u7d20\u306e\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u8abf\u3079\u308b"},"content":{"rendered":"<p>Python\u3067\u306findex()\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u3063\u3066\u30ea\u30b9\u30c8\u4e2d\u306e\u8981\u7d20\u306e\u4f4d\u7f6e\u3092\u691c\u7d22\u3067\u304d\u307e\u3059\u3002\u3053\u306e\u30e1\u30bd\u30c3\u30c9\u306f\u691c\u7d22\u5bfe\u8c61\u306e\u8981\u7d20\u3092\u53d7\u3051\u53d6\u308a\u3001\u8981\u7d20\u304c\u30ea\u30b9\u30c8\u5185\u306b\u3042\u308b\u5834\u5408\u306f\u6700\u521d\u306b\u898b\u3064\u3051\u305f\u4f4d\u7f6e\u306e\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u8fd4\u3057\u3001\u8981\u7d20\u304c\u30ea\u30b9\u30c8\u306b\u306a\u3044\u5834\u5408\u306fValueError\u4f8b\u5916\u3092\u30b9\u30ed\u30fc\u3057\u307e\u3059\u3002<\/p>\n<p>\u6b21\u306e\u3088\u3046\u306a\u4f8b\u304c\u3042\u308a\u307e\u3059<\/p>\n<pre class=\"post-pre\"><code>my_list = [<span class=\"hljs-number\">1<\/span>, <span class=\"hljs-number\">2<\/span>, <span class=\"hljs-number\">3<\/span>, <span class=\"hljs-number\">4<\/span>, <span class=\"hljs-number\">5<\/span>]\r\n\r\n<span class=\"hljs-comment\"># \u67e5\u627e\u5143\u7d202\u7684\u4f4d\u7f6e<\/span>\r\nindex = my_list.index(<span class=\"hljs-number\">2<\/span>)\r\n<span class=\"hljs-built_in\">print<\/span>(index)  <span class=\"hljs-comment\"># \u8f93\u51fa: 1<\/span>\r\n\r\n<span class=\"hljs-comment\"># \u67e5\u627e\u5143\u7d206\u7684\u4f4d\u7f6e<\/span>\r\nindex = my_list.index(<span class=\"hljs-number\">6<\/span>)  <span class=\"hljs-comment\"># \u629b\u51faValueError\u5f02\u5e38<\/span>\r\n<\/code><\/pre>\n<p>index()\u30e1\u30bd\u30c3\u30c9\u306f\u3001\u8981\u7d20\u304c\u6700\u521d\u306b\u73fe\u308c\u308b\u4f4d\u7f6e\u306e\u307f\u3092\u8fd4\u3057\u307e\u3059\u3002\u8981\u7d20\u306e\u3059\u3079\u3066\u306e\u51fa\u73fe\u4f4d\u7f6e\u3092\u691c\u7d22\u3059\u308b\u306b\u306f\u3001\u30eb\u30fc\u30d7\u3092\u4f7f\u7528\u3057\u3066\u30ea\u30b9\u30c8\u3092\u53cd\u5fa9\u51e6\u7406\u3057\u3001\u5224\u65ad\u3057\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Python\u3067\u306findex()\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u3063\u3066\u30ea\u30b9\u30c8\u4e2d\u306e\u8981\u7d20\u306e\u4f4d\u7f6e\u3092\u691c\u7d22\u3067\u304d\u307e\u3059\u3002\u3053\u306e\u30e1\u30bd\u30c3\u30c9\u306f\u691c\u7d22\u5bfe\u8c61\u306e\u8981\u7d20\u3092\u53d7\u3051\u53d6\u308a\u3001\u8981\u7d20\u304c\u30ea\u30b9\u30c8\u5185\u306b\u3042\u308b\u5834\u5408\u306f\u6700\u521d\u306b\u898b\u3064\u3051\u305f\u4f4d\u7f6e\u306e\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u8fd4\u3057\u3001\u8981\u7d20\u304c\u30ea\u30b9\u30c8\u306b\u306a\u3044\u5834\u5408\u306fValu [&hellip;]<\/p>\n","protected":false},"author":9,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-101984","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) - 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