{"id":1659,"date":"2020-11-11T21:12:26","date_gmt":"2020-11-11T12:12:26","guid":{"rendered":"https:\/\/www.nblog09.com\/w\/?p=1659"},"modified":"2020-11-19T15:36:50","modified_gmt":"2020-11-19T06:36:50","slug":"if","status":"publish","type":"post","link":"https:\/\/www.nblog09.com\/w\/2020\/11\/11\/if\/","title":{"rendered":"Python\u306eif\u6587\u306e\u4f7f\u3044\u65b9\u8a73\u7d30\uff01\uff01\u57fa\u672c\u7684\u306a\u4f7f\u3044\u65b9\u304b\u3089\u4ed5\u69d8\u307e\u3067\uff08if, elif, else, and, or, not, any, all, __bool__\uff09"},"content":{"rendered":"<div style=\"background: #ffffff; padding: 15px; border: 2px solid #99cc00; border-radius: 10px; word-break: break-all;\">\n<p>&nbsp;<\/p>\n<ul>\n<li>python\u306eif\u6587\u306e\u57fa\u672c\u7684\u306a\u5b9f\u88c5\u65b9\u6cd5<\/li>\n<li>elif, else\u3092\u7528\u3044\u305fif\u6587\u306e\u6761\u4ef6\u306e\u8ffd\u52a0<\/li>\n<li>\u8ad6\u7406\u578b\u3001\u7a7a\u306e\u30ea\u30b9\u30c8\u3001\u7a7a\u306e\u6587\u5b57\u5217\u306a\u3069\u306e\u6271\u3044<\/li>\n<li>and, or, not, any, all\u306e\u5229\u7528<\/li>\n<li>1\u884c\u3067\u306eif, else\u306e\u5229\u7528<\/li>\n<li>if\u6587\u306e\u30cd\u30b9\u30c8<\/li>\n<li>__bool__\u306e\u5b9f\u88c5<\/li>\n<li>\u30bb\u30a4\u30a6\u30c1\u6f14\u7b97\u5b50<\/li>\n<\/ul>\n<p>\u306a\u3069\u3001if\u6587\u306b\u3064\u3044\u3066\u8a00\u8a9e\u4ed5\u69d8\u3082\u542b\u3081\u3066\u3001\u8a73\u7d30\u306b\u89e3\u8aac\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<\/div>\n<p>&nbsp;<\/p>\n<p>[rtoc_mokuji title=\"\" title_display=\"\" heading=\"h3\" list_h2_type=\"\" list_h3_type=\"\" display=\"\" frame_design=\"\" animation=\"\"]<\/p>\n<h2 class=\"title-border\"><strong>if\u6587\u306e\u57fa\u672c\u7684\u306a\u4f7f\u3044\u65b9<\/strong><\/h2>\n<div style=\"background: #ffffff; padding: 15px; border-radius: 10px; word-break: break-all;\">\n<p>if\u6587\u3068\u306f\u3001\u5236\u5fa1\u6587\u306e\u4e00\u7a2e\u3067\u3001\u51e6\u7406\u3092\u5206\u5c90\u3055\u305b<strong>\u7279\u5b9a\u306e\u6761\u4ef6\u306e\u5834\u5408\u306b\u306e\u307f\u3042\u308b\u51e6\u7406\u3092\u3055\u305b\u305f\u3044\u5834\u5408<\/strong>\u306b\u7528\u3044\u3089\u308c\u307e\u3059\u3002<\/p>\n<div>\u305d\u3057\u3066\u3001python\u306e\u5834\u5408\u306f\u3001if\u6587\u306f<\/div>\n<div>\n<div class=\"programming-gray\">if\u3000&lt;\u6761\u4ef6\u5f0f&gt;:<br \/>\n&lt;\u51e6\u7406&gt;<\/div>\n<\/div>\n<div>\u3053\u308c\u3067\u3068\u308a\u3042\u3048\u305a\u5b9f\u88c5\u3067\u304d\u307e\u3059\u3002<\/div>\n<ul>\n<li><strong>if\u6587\u306e\u5206\u5c90\u306b\u3088\u308b\u51e6\u7406\u306e\u6982\u8981\uff08if\u6587\u306e\u5206\u5c90\u3092\u6e80\u305f\u3059\u5834\u5408\u306b\u306e\u307f\u7279\u5b9a\u306e\u51e6\u7406\u304c\u5b9f\u884c\u3055\u308c\u308b\uff09<\/strong><\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" class=\" wp-image-1662 alignnone\" src=\"https:\/\/www.nblog09.com\/w\/wp-content\/uploads\/2020\/10\/IT\u30d1\u30b9\u30dd\u30fc\u30c81.png\" alt=\"\" width=\"304\" height=\"256\" srcset=\"https:\/\/www.nblog09.com\/w\/wp-content\/uploads\/2020\/10\/IT\u30d1\u30b9\u30dd\u30fc\u30c81.png 500w, https:\/\/www.nblog09.com\/w\/wp-content\/uploads\/2020\/10\/IT\u30d1\u30b9\u30dd\u30fc\u30c81-300x253.png 300w\" sizes=\"auto, (max-width: 304px) 100vw, 304px\" \/><\/p>\n<\/div>\n<div style=\"background: #ffffff; padding: 15px; border-radius: 10px; word-break: break-all;\">\n<div>\u6761\u4ef6\u306b\u8a18\u8ff0\u3059\u308b\u5185\u5bb9\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u3082\u306e\u304c\u3042\u308a\u307e\u3059\u3002<\/div>\n<\/div>\n<div style=\"background: #ffffff; padding: 15px; border-radius: 10px; word-break: break-all;\">\n<div>\n<p>\u30fbif\u6587\u306e\u6761\u4ef6\u4e00\u89a7<\/p>\n<table class=\"table\">\n<thead>\n<tr class=\"table-tr\">\n<th>\u95a2\u6570\u540d<\/th>\n<th>\u51e6\u7406\u5185\u5bb9<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td class=\"table-td\">\u25cb\u25cb == \u25cb\u25cb<\/td>\n<td>\u3000\u5de6\u5074\u306e\u5f0f\u3068\u53f3\u5074\u306e\u5f0f\u304c<strong>\u7b49\u3057\u3044<\/strong>\u5834\u5408\u306b\u3001\u51e6\u7406\u3092\u5b9f\u884c<\/td>\n<\/tr>\n<tr>\n<td class=\"table-td\">\u25cb\u25cb != \u25cb\u25cb<\/td>\n<td>\u3000\u5de6\u5074\u306e\u5f0f\u3068\u53f3\u5074\u306e\u5f0f\u304c<strong>\u7b49\u3057\u304f\u306a\u3044<\/strong>\u5834\u5408\u306b\u3001\u51e6\u7406\u3092\u5b9f\u884c<\/td>\n<\/tr>\n<tr>\n<td class=\"table-td\">\u25cb\u25cb &lt; \u25cb\u25cb<\/td>\n<td>\u3000\u5de6\u5074\u306e\u6570\u5024\u304c\u53f3\u5074\u306e\u6570\u5024\u3088\u308a\u3082\u5024\u304c<strong>\u5c0f\u3055\u3044<\/strong>\u5834\u5408\u306b\u3001\u51e6\u7406\u3092\u5b9f\u884c<\/td>\n<\/tr>\n<tr>\n<td class=\"table-td\">\u25cb\u25cb &gt; \u25cb\u25cb<\/td>\n<td>\u3000\u5de6\u5074\u306e\u6570\u5024\u304c\u53f3\u5074\u306e\u6570\u5024\u3088\u308a\u3082\u5024\u304c<strong>\u5927\u304d\u3044<\/strong>\u5834\u5408\u306b\u3001\u51e6\u7406\u3092\u5b9f\u884c<\/td>\n<\/tr>\n<tr>\n<td class=\"table-td\">\u25cb\u25cb &lt;= \u25cb\u25cb<\/td>\n<td>\u3000\u5de6\u5074\u306e\u6570\u5024\u304c\u53f3\u5074\u306e\u6570\u5024<strong>\u4ee5\u4e0b<\/strong>\u306e\u5834\u5408\u306b\u3001\u51e6\u7406\u3092\u5b9f\u884c<\/td>\n<\/tr>\n<tr>\n<td class=\"table-td\">\u25cb\u25cb &gt;= \u25cb\u25cb<\/td>\n<td>\u3000\u5de6\u5074\u306e\u6570\u5024\u304c\u53f3\u5074\u306e\u6570\u5024<strong>\u4ee5\u4e0a<\/strong>\u306e\u5834\u5408\u306b\u3001\u51e6\u7406\u3092\u5b9f\u884c<\/td>\n<\/tr>\n<tr>\n<td class=\"table-td\">\u25cb\u25cb in \u30ea\u30b9\u30c8 \u30bf\u30d7\u30eb\u306a\u3069<\/td>\n<td>\u3000\u5de6\u5074\u306e\u5024\u304c\u53f3\u5074\u306e\u30ea\u30b9\u30c8\u3084\u30bf\u30d7\u30eb\u5185\u306b<strong>\u5b58\u5728\u3059\u308b<\/strong>\u5834\u5408\u306b\u3001\u51e6\u7406\u3092\u5b9f\u884c<\/td>\n<\/tr>\n<tr>\n<td class=\"table-td\">\u25cb\u25cb not in \u30ea\u30b9\u30c8 \u30bf\u30d7\u30eb\u306a\u3069<\/td>\n<td>\u3000\u5de6\u5074\u306e\u5024\u304c\u53f3\u5074\u306e\u30ea\u30b9\u30c8\u3084\u30bf\u30d7\u30eb\u5185\u306b<strong>\u5b58\u5728\u3057\u306a\u3044<\/strong>\u5834\u5408\u306b\u3001\u51e6\u7406\u3092\u5b9f\u884c<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>\u3053\u308c\u3089\u306f\u3001\u5185\u90e8\u7684\u306b\u306f<a href=\"https:\/\/www.nblog09.com\/w\/2019\/01\/11\/python_tokushu_method\/\">\u7279\u6b8a\u30e1\u30bd\u30c3\u30c9<\/a>\u304c\u547c\u3070\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u8a73\u7d30\u306f\u6700\u5f8c\u306b\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n<p>\u3067\u306f\u3001if\u6587\u304c\u5b9f\u969b\u306b\u3069\u306e\u3088\u3046\u306b\u5b9f\u88c5\u3055\u308c\u3066\u3044\u308b\u306e\u304b\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\uff01<\/p>\n<ul>\n<li><strong>if\u6587\u306e\u5b9f\u88c5\u4f8b<\/strong><\/li>\n<\/ul>\n<div class=\"programming-gray\">\n<h4>Example<\/h4>\n<ul>\n<li>if\u306e\u5f8c\u306b\u30a4\u30f3\u30c7\u30f3\u30c8(\u7a7a\u767d)\u304c\u306a\u3044\u5834\u5408\u30a8\u30e9\u30fc<\/li>\n<\/ul>\n<div class=\"programming-inside\">if 'A' == 'A':<br \/>\nprint('A == A')<\/div>\n<p>&nbsp;<\/p>\n<ul>\n<li>if\u6587\u3067\u7b49\u3057\u3044\u304b\u3069\u3046\u304b\u78ba\u8a8d<\/li>\n<\/ul>\n<div class=\"programming-inside\">if 'A' == 'A':<br \/>\n&nbsp;&nbsp;&nbsp;&nbsp;print('A == A') <strong># A\u3068A\u306f\u7b49\u3057\u3044\u306e\u3067\u5b9f\u884c\u3055\u308c\u308bname = 'Taro'<\/strong><br \/>\nif name == 'Taro':<br \/>\n&nbsp;&nbsp;&nbsp;&nbsp;pass <strong># name\u306b\u306fTaro\u304c\u5165\u3063\u3066\u3044\u308b\u305f\u3081\u4e2d\u306e\u51e6\u7406\u304c\u5b9f\u884c\u3055\u308c\u308b<\/strong><\/div>\n<div class=\"programming-inside\">name = 'Taro'<br \/>\nif name != 'Taro':<br \/>\n&nbsp;&nbsp;&nbsp;&nbsp;pass <strong># name\u306fTaro\u3067\u306f\u306a\u3044\u305f\u3081\u4e2d\u306e\u51e6\u7406\u304c\u5b9f\u884c\u3055\u308c\u308b<\/strong><\/div>\n<p>&nbsp;<\/p>\n<ul>\n<li>if\u6587\u3067\u6bd4\u8f03\u6f14\u7b97\u5b50\u3092\u4f7f\u7528<\/li>\n<\/ul>\n<div class=\"programming-inside\">\n<p>age = 12<br \/>\nif age &lt; 20:<br \/>\n&nbsp;&nbsp;&nbsp;&nbsp;pass <strong># age\u306f20\u3088\u308a\u5c0f\u3055\u3044\u306e\u3067\u5b9f\u884c\u3055\u308c\u308b<\/strong><\/p>\n<p>age = 12<br \/>\nif age &gt; 20:<br \/>\n&nbsp;&nbsp;&nbsp;&nbsp;pass <strong># age\u306f20\u3088\u308a\u5927\u304d\u304f\u306a\u3044\u306e\u3067\u5b9f\u884c\u3055\u308c\u306a\u3044<\/strong><\/p>\n<p>age = 20 # age\u306b20\u3092\u4ee3\u5165<br \/>\nif age &lt;= 20:<br \/>\n&nbsp;&nbsp;&nbsp;&nbsp;pass <strong># age\u306f20\u4ee5\u4e0b\u306a\u306e\u3067\u5b9f\u884c\u3055\u308c\u308b<\/strong><\/p>\n<p>age = 20<br \/>\nif age &gt;= 20:<br \/>\n&nbsp;&nbsp;&nbsp;&nbsp;pass <strong># age\u306f20\u4ee5\u4e0a\u306a\u306e\u3067\u5b9f\u884c\u3055\u308c\u308b<\/strong><\/p>\n<\/div>\n<p>&nbsp;<\/p>\n<ul>\n<li>if\u6587\u3067in\u3092\u4f7f\u7528<\/li>\n<\/ul>\n<div class=\"programming-inside\">\n<p>fruit = 'lemon'<br \/>\nif fruit in ('apple', 'banana', 'orange'):<br \/>\n&nbsp;&nbsp;&nbsp;&nbsp;pass <strong># fruit(apple)\u306f()\u306e\u4e2d\u306b\u5b58\u5728\u3057\u306a\u3044\u306e\u3067\u3001\u5b9f\u884c\u3055\u308c\u306a\u3044<\/strong><\/p>\n<p>fruit = 'lemon'<br \/>\nif fruit in ('apple', 'banana', 'orange'):<br \/>\n&nbsp;&nbsp;&nbsp;&nbsp;pass <strong># fruit(apple)\u306f()\u306e\u4e2d\u306b\u5b58\u5728\u3057\u306a\u3044\u306e\u3067\u3001\u5b9f\u884c\u3055\u308c\u308b<\/strong><\/p>\n<\/div>\n<\/div>\n<p>&nbsp;<\/p>\n<p>\u3053\u306e\u3088\u3046\u306b\u3001==, !=, &lt;, &gt;, &lt;=, &gt;=, in, not in\u306a\u3069\u306e\u6f14\u7b97\u5b50\u3092\u7528\u3044\u3066\u3001if\u6587\u306e\u6761\u4ef6\u3092\u8a18\u8f09\u3057\u3001\u6761\u4ef6\u306b\u5fdc\u3058\u3066\u5b9f\u884c\u3067\u304d\u308b\u3067\u304d\u306a\u3044\u3092\u5206\u3051\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<\/div>\n<div class=\"customized-adsense\"><\/div>\n<h2 class=\"title-border\"><strong>elif, else\u3092\u4f7f\u7528\u3057\u305f\u5206\u5c90\u306e\u8ffd\u52a0<\/strong><\/h2>\n<div style=\"background: #ffffff; padding: 15px; border-radius: 10px; word-break: break-all;\">\n<p>elif, else\u3092\u4f7f\u3046\u3068\u5206\u5c90\u3092\u8ffd\u52a0\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u3064\u307e\u308a\u3001if\u306e\u6761\u4ef6\u3092\u6e80\u305f\u3055\u306a\u3044\u5834\u5408\u306e\u5225\u306e\u6761\u4ef6\u3068\u3057\u3066elif\u3067\u69d8\u3005\u306a\u6761\u4ef6\u3092\u7e4b\u3044\u3067\u3044\u304f\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<ul>\n<li><strong>elif, else\u3067\u69d8\u3005\u306a\u6761\u4ef6\u3092\u7e4b\u3044\u3060\u51e6\u7406\u306e\u6982\u8981<\/strong><\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-1664 aligncenter\" src=\"https:\/\/www.nblog09.com\/w\/wp-content\/uploads\/2020\/10\/IT\u30d1\u30b9\u30dd\u30fc\u30c81-1-1024x412.png\" alt=\"\" width=\"545\" height=\"219\" srcset=\"https:\/\/www.nblog09.com\/w\/wp-content\/uploads\/2020\/10\/IT\u30d1\u30b9\u30dd\u30fc\u30c81-1-1024x412.png 1024w, https:\/\/www.nblog09.com\/w\/wp-content\/uploads\/2020\/10\/IT\u30d1\u30b9\u30dd\u30fc\u30c81-1-300x121.png 300w, https:\/\/www.nblog09.com\/w\/wp-content\/uploads\/2020\/10\/IT\u30d1\u30b9\u30dd\u30fc\u30c81-1-768x309.png 768w, https:\/\/www.nblog09.com\/w\/wp-content\/uploads\/2020\/10\/IT\u30d1\u30b9\u30dd\u30fc\u30c81-1.png 1132w\" sizes=\"auto, (max-width: 545px) 100vw, 545px\" \/><\/p>\n<p>elif\u306e\u6761\u4ef6\u306f\u3001if\u306e\u6761\u4ef6\u3092\u6e80\u305f\u3055\u306a\u3044\u5834\u5408\u3057\u304b\u78ba\u8a8d\u3055\u308c\u306a\u3044\u307e\u305b\u3093\u3002<\/p>\n<p>if\u306e\u6761\u4ef6\u3092\u6e80\u305f\u3057\u305f\u5834\u5408\u3001if\u306e\u6761\u4ef6\u5185\u306e\u51e6\u7406\u304c\u5b9f\u884c\u3055\u308c\u3066\u3001<strong>elif, else\u306e\u51e6\u7406\u306f\u5b9f\u884c\u3055\u308c\u307e\u305b\u3093<\/strong>\u306e\u3067\u6ce8\u610f\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<ul>\n<li><strong>elif, else\u306e\u5b9f\u88c5\u4f8b<\/strong><\/li>\n<\/ul>\n<div class=\"programming-gray\">\n<h4>Example<\/h4>\n<ul>\n<li>elif, else\u3092\u4f7f\u7528\u3057\u305fif\u6587<\/li>\n<\/ul>\n<div class=\"programming-inside\">age = 18<br \/>\nif age &lt; 20: <strong># if\u306e\u6761\u4ef6<\/strong><br \/>\n&nbsp;&nbsp;&nbsp;&nbsp;print('20\u672a\u6e80')<br \/>\nelif age &lt;= 60: <strong># if\u306e\u6761\u4ef6\u3092\u6e80\u305f\u3055\u306a\u3044(20\u4ee5\u4e0a\u306e\u5834\u5408)\u3001\u6761\u4ef6\u3092\u78ba\u8a8d\u3059\u308b<\/strong><br \/>\n&nbsp;&nbsp;&nbsp;&nbsp;print('20\u4ee5\u4e0a60\u4ee5\u4e0b')<br \/>\nelse:<br \/>\n&nbsp;&nbsp;&nbsp;&nbsp;print('60\u3088\u308a\u5927\u304d\u3044')<\/div>\n<\/div>\n<p>\u3053\u306e\u3088\u3046\u306b\u3001if, elif, else\u3067if\u306e\u6761\u4ef6\u3092\u6e80\u305f\u3055\u306a\u3044\u5834\u5408\u306e\u51e6\u7406\u3092\u5b9f\u88c5\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>elif\u306f1\u3064\u3060\u3051\u3067\u306a\u304f\u3001\u8907\u6570\u3064\u306a\u3050\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002<\/p>\n<\/div>\n<div class=\"customized-adsense\"><\/div>\n<h2 class=\"title-border\"><strong>\u8ad6\u7406\u578b\uff08boolean\uff09\u3001\u7a7a\u6587\u5b57\u3001\u7a7a\u306e\u30ea\u30b9\u30c8\u306a\u3069<\/strong><\/h2>\n<div style=\"background: #ffffff; padding: 15px; border-radius: 10px; word-break: break-all;\"><a href=\"https:\/\/www.nblog09.com\/w\/2018\/12\/29\/python-logical-character\/\">\u8ad6\u7406\u578b<\/a>\u3082if\u6587\u306e\u6761\u4ef6\u3068\u3057\u3066\u7528\u3044\u3089\u308c\u307e\u3059\u3002<br \/>\n\u3053\u306e\u6642\u306f\u3001\u7279\u306b\u6761\u4ef6\u5f0f\u3092\u8a18\u8f09\u305b\u305a\u306b\u3001\u5909\u6570\u540d\u3060\u3051if\u6587\u306b\u7f6e\u304d\u307e\u3059\u3002\u305d\u3057\u3066\u3001\u8ad6\u7406\u578b\u306e\u5834\u5408\u3001<strong>True\u3067\u306f\u51e6\u7406\u304c\u5b9f\u884c\u3055\u308c\u3066\u3001False\u3067\u306f\u51e6\u7406\u306f\u5b9f\u884c\u3055\u308c\u307e\u305b\u3093\u3002<\/strong><\/div>\n<div style=\"background: #ffffff; padding: 15px; border-radius: 10px; word-break: break-all;\">\n<div>\n<ul>\n<li><strong>\u8ad6\u7406\u578b\u306eif\u6587<\/strong><\/li>\n<\/ul>\n<div class=\"programming-gray\">\n<h4>Example<\/h4>\n<ul>\n<li>\u8ad6\u7406\u5f0f\u3092\u305d\u306e\u307e\u307e\u5165\u308c\u305f\u5834\u5408\u306eif\u6587<\/li>\n<\/ul>\n<div class=\"programming-inside\">\nvar = True<br \/>\nif var: <strong># var\u3068\u3044\u3046\u5909\u6570\u304cTrue\u306e\u5834\u5408\u3060\u3051\u3001\u5b9f\u884c\u3055\u308c\u308b\uff08False\u306e\u5834\u5408\u306f\u5b9f\u884c\u3055\u308c\u306a\u3044\uff09<\/strong><br \/>\n&nbsp;&nbsp;&nbsp;&nbsp;print('something')\n<\/div>\n<\/div>\n<\/div>\n<p>&nbsp;<\/p>\n<p>\u307e\u305f\u3001\u7a7a\u6587\u5b57\u5217\u306e\u5909\u6570\u3092\u76f4\u63a5if\u6587\u306b\u304a\u3044\u3066\u3001\u6761\u4ef6\u5206\u5c90\u3055\u305b\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002<\/p>\n<ul>\n<li><strong>\u7a7a\u6587\u5b57\u5217\u306eif\u6587<\/strong><\/li>\n<\/ul>\n<div class=\"programming-gray\">\n<h4>Example<\/h4>\n<ul>\n<li>\u7a7a\u6587\u5b57\u5217\u3092\u4f7f\u3063\u305fif\u6587<\/li>\n<\/ul>\n<div class=\"programming-inside\">\nmsg = ''<br \/>\nif msg: <strong># \u7a7a\u6587\u5b57\u306e\u5834\u5408\u3001if\u6587\u3067\u306fFalse\u3068\u5224\u5b9a\u3055\u308c\u3066\u4e2d\u306e\u51e6\u7406\u306f\u5b9f\u884c\u3055\u308c\u306a\u3044\u3002<\/strong><br \/>\n&nbsp;&nbsp;&nbsp;&nbsp;print('\u5b9f\u884c\u3055\u308c\u306a\u3044')\n<\/div>\n<\/div>\n<p>\u3053\u306e\u3088\u3046\u306b\u3001\u7a7a\u6587\u5b57\u5217\u306e\u5834\u5408\u306b\u306fif\u6587\u3067False\u3068\u5224\u65ad\u3055\u308c\u3001\u4e2d\u306e\u51e6\u7406\u306f\u5b9f\u884c\u3055\u308c\u307e\u305b\u3093\u3002<\/p>\n<p>\u9006\u306b\u4f55\u3089\u304b\u306e\u6587\u5b57\u5217\u304c\u5165\u3063\u3066\u3044\u308b\u5834\u5408\u306b\u306fif\u6587\u3067True\u3068\u5224\u65ad\u3055\u308c\u3001\u4e2d\u306e\u51e6\u7406\u306f\u5b9f\u884c\u3055\u308c\u307e\u3059\u3002<\/p>\n<ul>\n<li><strong>\u4e2d\u306b\u6587\u5b57\u304c\u5165\u3063\u3066\u3044\u308b\u6587\u5b57\u5217\u5909\u6570\u306eif\u6587<\/strong><\/li>\n<\/ul>\n<div class=\"programming-gray\">\n<h4>Example<\/h4>\n<ul>\n<li>\u6587\u5b57\u5217\u304c\u5165\u3063\u305f\u5834\u5408\u306eif\u6587<\/li>\n<\/ul>\n<div class=\"programming-inside\">\nmsg = 'Hello'<br \/>\nif msg:<strong># \u6587\u5b57\u304c\u5165\u3063\u3066\u3044\u308b\u5834\u5408\u3001if\u6587\u3067\u306fTrue\u3068\u5224\u5b9a\u3055\u308c\u3066\u4e2d\u306e\u51e6\u7406\u306f\u5b9f\u884c\u3055\u308c\u306a\u3044\u3002<\/strong><br \/>\n&nbsp;&nbsp;&nbsp;&nbsp;print('\u5b9f\u884c\u3055\u308c\u308b')\n<\/div>\n<\/div>\n<p>&nbsp;<\/p>\n<p>\u3067\u306f\u3001\u5404\u30af\u30e9\u30b9\u6bce\u306b\u3069\u306e\u5834\u5408\u306fTrue\u3068\u5224\u65ad\u3055\u308c\u3066\u51e6\u7406\u304c\u5b9f\u884c\u3055\u308c\u3001\u3069\u306e\u5834\u5408\u306fFalse\u3068\u5224\u65ad\u3055\u308c\u3066\u51e6\u7406\u304c\u5b9f\u884c\u3055\u308c\u306a\u3044\u306e\u304b\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>&nbsp;<\/p>\n<ul>\n<li><strong>\u578b\u3054\u3068\u306e\u6761\u4ef6<\/strong><\/li>\n<\/ul>\n<table class=\"table\">\n<thead>\n<tr class=\"table-tr\">\n<th>\u578b\u540d<\/th>\n<th>True\u3068\u306a\u308b\u5834\u5408<\/th>\n<th>False\u3068\u306a\u308b\u5834\u5408<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td class=\"table-td\">\u6570\u5024(int)<\/td>\n<td>0\u4ee5\u5916\u306e\u6b63\u3068\u8ca0\u306e\u5024<\/td>\n<td>0<\/td>\n<\/tr>\n<tr>\n<td class=\"table-td\">\u6d6e\u52d5\u5c0f\u6570\u70b9\u6570(float)<\/td>\n<td>0.0\u4ee5\u5916\u306e\u6b63\u3068\u8ca0\u306e\u5024<\/td>\n<td>0.0<\/td>\n<\/tr>\n<tr>\n<td class=\"table-td\">\u6587\u5b57\u5217(str)<\/td>\n<td>\u7a7a\u3067\u306a\u3044\u6587\u5b57\u5217<\/td>\n<td>\u7a7a\u306e\u6587\u5b57\u5217<\/td>\n<\/tr>\n<tr>\n<td class=\"table-td\">\u30ea\u30b9\u30c8(list)<\/td>\n<td>\u7a7a\u3067\u306a\u3044\u30ea\u30b9\u30c8<\/td>\n<td>\u7a7a\u306e\u30ea\u30b9\u30c8<\/td>\n<\/tr>\n<tr>\n<td class=\"table-td\">\u30bf\u30d7\u30eb(tuple)<\/td>\n<td>\u7a7a\u3067\u306a\u3044\u30bf\u30d7\u30eb<\/td>\n<td>\u7a7a\u306e\u30bf\u30d7\u30eb<\/td>\n<\/tr>\n<tr>\n<td class=\"table-td\">\u8f9e\u66f8(dict)<\/td>\n<td>\u7a7a\u3067\u306a\u3044\u8f9e\u66f8<\/td>\n<td>\u7a7a\u306e\u8f9e\u66f8<\/td>\n<\/tr>\n<tr>\n<td class=\"table-td\">\u30bb\u30c3\u30c8(set)<\/td>\n<td>\u7a7a\u3067\u306a\u3044\u30bb\u30c3\u30c8<\/td>\n<td>\u7a7a\u306e\u30bb\u30c3\u30c8<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<ul>\n<li>\u5909\u6570\u3092\u76f4\u63a5if\u306b\u30bb\u30c3\u30c8\u3057\u305f\u5834\u5408<\/li>\n<\/ul>\n<div class=\"programming-gray\">\n<h4>Example<\/h4>\n<ul>\n<li>list\u3092\u305d\u306e\u307e\u307e\u4f7f\u7528\u3057\u305fif\u6587<\/li>\n<\/ul>\n<div class=\"programming-inside\">\nlist_a = [1, 2]<br \/>\nif list_a: <strong># list\u306e\u4e2d\u306b\u306f\u5024\u304c\u5165\u3063\u3066\u3044\u308b\u306e\u3067\u5b9f\u884c\u3055\u308c\u308b<\/strong><br \/>\n&nbsp;&nbsp;&nbsp;&nbsp;print('\u5b9f\u884c\u3055\u308c\u308b')<br \/>\nlist_a = list() # \u7a7a\u306e\u30ea\u30b9\u30c8<br \/>\nif list_a: <strong># list\u306f\u7a7a\u306a\u306e\u3067\u5b9f\u884c\u3055\u308c\u306a\u3044<\/strong><br \/>\n&nbsp;&nbsp;&nbsp;&nbsp;print('\u5b9f\u884c\u3055\u308c\u306a\u3044')\n<\/div>\n<\/div>\n<\/li>\n<\/ul>\n<\/div>\n<div class=\"customized-adsense\"><\/div>\n<h2 class=\"title-border\"><strong>and\u3001or\u3001not\u3001all\u3001any\u3067\u8907\u6570\u306e\u6761\u4ef6\u3092\u7e4b\u3052\u308b\u00a0<\/strong><\/h2>\n<div style=\"background: #ffffff; padding: 15px; border-radius: 10px; word-break: break-all;\">\n<h3><strong>1. and\u3092\u4f7f\u7528\u3057\u305f\u5834\u5408\uff08\u8ad6\u7406\u7a4d\uff09<\/strong><\/h3>\n<p>\u25cb\u25cb \u304b\u3064 \u00d7\u00d7<\/p>\n<p>\u306e\u3088\u3046\u306a\u6761\u4ef6\u3092\u5224\u5b9a\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u3064\u307e\u308a\u3001<\/p>\n<\/div>\n<div style=\"background: #ffffff; padding: 15px; border-radius: 10px; word-break: break-all;\">\n<div class=\"programming-gray\">\n<h4>Example<\/h4>\n<ul>\n<li>and\u3092\u4f7f\u7528\u3057\u305fif\u6587<\/li>\n<\/ul>\n<div class=\"programming-inside\">\nif (msg = 'Hello') and (color == 'red'):<br \/>\n&nbsp;&nbsp;&nbsp;&nbsp;pass\n<\/div>\n<\/div>\n<p>\u3068\u8a18\u8ff0\u3057\u305f\u5834\u5408\u3001msg\u306e\u5024\u304cHello\u3067color\u306e\u5024\u304cred\u3060\u3068if\u306e\u4e2d\u306e\u51e6\u7406\u304c\u5b9f\u884c\u3055\u308c\u307e\u3059\u3002<\/p>\n<div style=\"background: #ffffff; padding: 15px; border-radius: 10px; word-break: break-all;\">\n<h3><strong>2. or\u3092\u4f7f\u7528\u3057\u305f\u5834\u5408\uff08\u8ad6\u7406\u548c\uff09<\/strong><\/h3>\n<p>\u25cb\u25cb \u307e\u305f\u306f \u00d7\u00d7<\/p>\n<p>\u306e\u3088\u3046\u306a\u6761\u4ef6\u3092\u5224\u5b9a\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u3064\u307e\u308a\u3001<\/p>\n<\/div>\n<div style=\"background: #ffffff; padding: 15px; border-radius: 10px; word-break: break-all;\">\n<div class=\"programming-gray\">\n<h4>Example<\/h4>\n<ul>\n<li>and\u3092\u4f7f\u7528\u3057\u305fif\u6587<\/li>\n<\/ul>\n<div class=\"programming-inside\">\nif (msg = 'Hello') or (color == 'red'):<br \/>\n&nbsp;&nbsp;&nbsp;&nbsp;pass\n<\/div>\n<\/div>\n<p>\u3068\u8a18\u8ff0\u3057\u305f\u5834\u5408\u3001msg\u306e\u5024\u304cHello<strong>\u307e\u305f\u306f\u3001<\/strong>color\u306e\u5024\u304cred\u3060\u3068if\u306e\u4e2d\u306e\u51e6\u7406\u304c\u5b9f\u884c\u3055\u308c\u307e\u3059\u3002<\/p>\n<h3><strong>3. not\u3092\u4f7f\u7528\u3057\u305f\u5834\u5408\uff08\u5426\u5b9a\uff09<\/strong><\/h3>\n<ul>\n<li>\u6307\u5b9a\u3057\u305f\u6761\u4ef6\u304cFalse\u306e\u5834\u5408\u3060\u3051\u5b9f\u884c\u3055\u308c\u308b<\/li>\n<\/ul>\n<p>\u3068\u3044\u3046\u3075\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u4f8b\u3048\u3070\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u5229\u7528\u3057\u307e\u3059\u3002<\/p>\n<p>if not \u6761\u4ef6\u5f0f:<\/p>\n<div class=\"programming-gray\">\n<h4>Example<\/h4>\n<ul>\n<li>not\u3092\u4f7f\u7528\u3057\u305fif\u6587<\/li>\n<\/ul>\n<div class=\"programming-inside\">\nif not 'apple' == 'lemon':<br \/>\n&nbsp;&nbsp;&nbsp;&nbsp;pass <strong># apple==lemon\u306e\u6761\u4ef6\u304c\u6210\u7acb\u3057\u306a\u3044\u5834\u5408\u306b\u5b9f\u884c\u3055\u308c\u308b<\/strong><\/p>\n<p>if not age &lt; 20:<br \/>\n&nbsp;&nbsp;&nbsp;&nbsp;pass <strong># age&lt;20\u306e\u6761\u4ef6\u304c\u6210\u7acb\u3057\u306a\u3044\u5834\u5408\u306b\u5b9f\u884c\u3055\u308c\u308b<\/strong><\/p>\n<p>if fruit not in fruits_list:<br \/>\n&nbsp;&nbsp;&nbsp;&nbsp;pass <strong># fruit\u304cfruits_list\u306e\u4e2d\u306b\u5b58\u5728\u3057\u306a\u3044\u5834\u5408\u306b\u5b9f\u884c\u3055\u308c\u308b<\/strong>\n<\/div>\n<\/div>\n<h3><strong>4. all\u3092\u4f7f\u7528\u3057\u305f\u5834\u5408<\/strong><\/h3>\n<p>all\u3092\u5229\u7528\u3057\u305f\u5834\u5408\u306b\u306f\u3001\u5f15\u6570\u3068\u3057\u3066\u6307\u5b9a\u3057\u305fIterable\uff08\u30ea\u30b9\u30c8\u3001\u30bf\u30d7\u30eb\u7b49\uff09\u306a\u3082\u306e\u304c\u3001<strong>\u5168\u3066True\u306e\u5834\u5408<\/strong>\u306e\u307f\u5b9f\u884c\u3055\u308c\u308b\u3002<\/p>\n<ul>\n<li>all\u306e\u4f8b<\/li>\n<\/ul>\n<div class=\"programming-gray\">\n<h4>Example<\/h4>\n<ul>\n<li>all\u3092\u4f7f\u7528\u3057\u305fif\u6587<\/li>\n<\/ul>\n<div class=\"programming-inside\">\nif all(['A'=='A', 21 &gt; 12, 'A' != 'B']):<br \/>\n&nbsp;&nbsp;&nbsp;&nbsp;pass <strong># 'A' == 'A', 21 &gt; 12, 'A' != 'B'\u306f\u5168\u3066True\u306e\u305f\u3081\u5b9f\u884c\u3055\u308c\u308b<\/strong><br \/>\nif all(('A'=='A', 21 &gt; 12, 'A'=='B')):<br \/>\n&nbsp;&nbsp;&nbsp;&nbsp;pass <strong># 'A' == 'A', 21 &gt; 12\u306fTrue\u3060\u304c\u3001'A'=='B'\u306fFalse\u306e\u305f\u3081\u5b9f\u884c\u3055\u308c\u306a\u3044<\/strong>\n<\/div>\n<\/div>\n<h3><strong>5. any\u3092\u4f7f\u7528\u3057\u305f\u5834\u5408<\/strong><\/h3>\n<p>any\u3092\u5229\u7528\u3057\u305f\u5834\u5408\u306b\u306f\u3001\u5f15\u6570\u3068\u3057\u3066\u6307\u5b9a\u3057\u305fIterable\uff08\u30ea\u30b9\u30c8\u3001\u30bf\u30d7\u30eb\u7b49\uff09\u306a\u3082\u306e\u304c\u3001<strong>\u4e00\u3064\u3067\u3082True\u306e\u5834\u5408\u5b9f\u884c\u3055\u308c\u308b\u3002\u5168\u3066False\u306e\u5834\u5408\u306f\u5b9f\u884c\u3055\u308c\u306a\u3044\u3002<\/strong><\/p>\n<ul>\n<li>any\u306e\u4f8b<\/li>\n<\/ul>\n<div class=\"programming-gray\">\n<h4>Example<\/h4>\n<ul>\n<li>any\u3092\u4f7f\u7528\u3057\u305fif\u6587<\/li>\n<\/ul>\n<div class=\"programming-inside\">\nif any(['A'!='A', 21 &lt;= 12, 'A'!='B']):<br \/>\n&nbsp;&nbsp;&nbsp;&nbsp;pass <strong># 'A' != 'A', 21 &lt;= 12\u306fFalse\u3060\u304c\u3001'A' != 'B'\u306fTrue\u306e\u305f\u3081\u5b9f\u884c\u3055\u308c\u308b<\/strong><br \/>\nif any(('A'!='A', 21 &lt;= 12, 'A'=='B')):<br \/>\n&nbsp;&nbsp;&nbsp;&nbsp;print('\u5b9f\u884c\u3055\u308c\u308b') <strong># 'A' != 'A', 21 &lt;= 12, 'A' == 'B'\u306f\u5168\u3066False\u306e\u305f\u3081\u5b9f\u884c\u3055\u308c\u306a\u3044<\/strong>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"customized-adsense\"><\/div>\n<h2 class=\"title-border\"><strong>1\u884c\u3067if, else\u3092\u5229\u7528\u3059\u308b\u00a0<\/strong><\/h2>\n<div style=\"background: #ffffff; padding: 15px; border-radius: 10px; word-break: break-all;\">\n<p>1\u884c\u3067\u8a18\u8f09\u3067\u304d\u308b\u3088\u3046\u306a\u7c21\u5358\u306a\u6587\u306e\u5834\u5408\u306b\u306f\u3001<\/p>\n<p>\u3007\u3007 if \u6761\u4ef6\u5f0f else \u00d7\u00d7<\/p>\n<p>\u306e\u3088\u3046\u306a\u5f62\u3067\u8a18\u8f09\u3057\u3066\u3001\u6761\u4ef6\u5f0f\u304cTrue\u306e\u5834\u5408\u306b\u306f\u25cb\u25cb\u306e\u51e6\u7406\u3092\u5b9f\u884c\u3001False\u306e\u5834\u5408\u306b\u306f\u00d7\u00d7\u306e\u51e6\u7406\u3092\u5b9f\u884c\u3059\u308b\u3068\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<ul>\n<li>1\u884c\u3067\u8a18\u8f09\u3057\u305fif else<\/li>\n<\/ul>\n<div class=\"programming-gray\">\n<h4>Example<\/h4>\n<ul>\n<li>1\u884c\u306eif\u6587<\/li>\n<\/ul>\n<div class=\"programming-inside\">\na = 2<br \/>\nb = 330<br \/>\n<strong># a &gt; b\u306e\u5834\u5408print('A')\u304c\u5b9f\u884c\u3055\u308c\u3001\u305d\u308c\u4ee5\u5916a &lt;= b\u306e\u5834\u5408\u3001print('B')\u304c\u5b9f\u884c\u3055\u308c\u308b\u3002<\/strong><br \/>\nprint('A') if a &gt; b else print('B')<br \/>\n<strong># a &gt; b\u306e\u5834\u5408c\u306b\u306fa &gt; b\u304c\u3001\u305d\u308c\u4ee5\u5916a &lt;= b\u304c\u683c\u7d0d\u3055\u308c\u308b\u3002<\/strong><br \/>\nc = 'a &gt; b' if a &gt; b else 'a &lt;= b'<br \/>\nprint(c) # a &lt;= b\n<\/div>\n<\/div>\n<\/div>\n<div style=\"background: #ffffff; padding: 15px; border-radius: 10px; word-break: break-all;\">\n<div class=\"customized-adsense\"><\/div>\n<h2 class=\"title-border\"><strong>\u30cd\u30b9\u30c8\u3057\u305fif\u6587\u306e\u8a18\u8f09\u00a0<\/strong><\/h2>\n<div style=\"background: #ffffff; padding: 15px; border-radius: 10px; word-break: break-all;\">if\u6587\u3092\u30cd\u30b9\u30c8\u3057\u3066\u8907\u6570\u6761\u4ef6\u3092\u8a18\u8f09\u3059\u308b\u5834\u5408\u306b\u306f\u3001if\u306e\u4e2d\u306bif\u3092\u66f8\u3044\u3066\u884c\u304d\u307e\u3059\u3002<br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-1714\" src=\"https:\/\/www.nblog09.com\/w\/wp-content\/uploads\/2020\/11\/IT\u30d1\u30b9\u30dd\u30fc\u30c81.png\" alt=\"\" width=\"849\" height=\"441\" srcset=\"https:\/\/www.nblog09.com\/w\/wp-content\/uploads\/2020\/11\/IT\u30d1\u30b9\u30dd\u30fc\u30c81.png 849w, https:\/\/www.nblog09.com\/w\/wp-content\/uploads\/2020\/11\/IT\u30d1\u30b9\u30dd\u30fc\u30c81-300x156.png 300w, https:\/\/www.nblog09.com\/w\/wp-content\/uploads\/2020\/11\/IT\u30d1\u30b9\u30dd\u30fc\u30c81-768x399.png 768w\" sizes=\"auto, (max-width: 849px) 100vw, 849px\" \/><\/div>\n<ul>\n<li>if\u3092\u30cd\u30b9\u30c8\u3057\u305f\u5834\u5408\u306e\u66f8\u304d\u65b9<\/li>\n<\/ul>\n<div class=\"programming-gray\">\n<h4>Example<\/h4>\n<ul>\n<li>if\u6587\u30cd\u30b9\u30c8<\/li>\n<\/ul>\n<div class=\"programming-inside\">\nif \u6761\u4ef61:<br \/>\n&nbsp;&nbsp;&nbsp;&nbsp;if \u6761\u4ef62:<br \/>\n&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;pass<strong># \u6761\u4ef61\u304cTrue\u3067\u6761\u4ef62\u304cTrue\u306e\u5834\u5408\u306e\u51e6\u7406<\/strong><br \/>\n&nbsp;&nbsp;&nbsp;&nbsp;else:<br \/>\n&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;pass<strong># \u6761\u4ef61\u304cTrue\u3067\u6761\u4ef62\u304cFalse\u306e\u5834\u5408\u306e\u51e6\u7406<\/strong><br \/>\nelse:<br \/>\n&nbsp;&nbsp;&nbsp;&nbsp;if \u6761\u4ef63:<br \/>\n&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;pass<strong># \u6761\u4ef61\u304cFalse\u3067\u6761\u4ef63\u304cTrue\u306e\u5834\u5408\u306e\u51e6\u7406<\/strong><br \/>\n&nbsp;&nbsp;&nbsp;&nbsp;else:<br \/>\n&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;pass<strong># \u6761\u4ef61\u304cFalse\u3067\u6761\u4ef63\u304cFalse\u306e\u5834\u5408\u306e\u51e6\u7406<\/strong><\/div>\n<\/div>\n<p>&nbsp;<\/p>\n<div class=\"customized-adsense\"><\/div>\n<h2 class=\"title-border\"><strong>__bool__\u3092\u7528\u3044\u305f\u30af\u30e9\u30b9\u306e\u5b9f\u88c5(if\u306e\u4ed5\u69d8\u8a73\u7d30)<\/strong><\/h2>\n<div style=\"background: #ffffff; padding: 15px; border-radius: 10px; word-break: break-all;\">\n<p>\u3053\u3053\u304b\u3089\u306f\u3001if\u6587\u306e\u8a73\u7d30\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n<p>if\u3092\u5b9f\u884c\u3057\u305f\u5834\u5408\u3001\u5bfe\u8c61\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u306e<strong>\u7279\u6b8a\u30e1\u30bd\u30c3\u30c9__bool__<\/strong>\u304c\u547c\u3070\u308c\u307e\u3059\u3002<\/p>\n<p>__bool__\u306e\u30e1\u30bd\u30c3\u30c9\u306e\u8fd4\u308a\u5024\u304cTrue\u3060\u3063\u305f\u5834\u5408\u306b\u306f\u3001if\u6587\u306e\u4e2d\u306e\u51e6\u7406\u304c\u5b9f\u884c\u3055\u308c\u3001False\u3060\u3063\u305f\u5834\u5408\u306b\u306f\u3001if\u6587\u306e\u4e2d\u306e\u51e6\u7406\u306f\u5b9f\u884c\u3055\u308c\u306a\u3044\u305b\u3059\u3002<\/p>\n<ul>\n<li>__bool__\u3092\u5229\u7528\u3057\u305f\u5834\u5408\u306e\u66f8\u304d\u65b9<\/li>\n<\/ul>\n<div class=\"programming-gray\">\n<h4>Example<\/h4>\n<ul>\n<li>__bool__\u306e\u5b9f\u88c5<\/li>\n<\/ul>\n<div class=\"programming-inside\">\nclass ClassA:<\/p>\n<p>&nbsp;&nbsp;&nbsp;&nbsp;def __bool__(self):<br \/>\n&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;print('bool\u304c\u547c\u3070\u308c\u307e\u3057\u305f')<br \/>\n&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;return True<\/p>\n<p>a = ClassA()<br \/>\nif a: # ClassA\u306e__bool__\u30e1\u30bd\u30c3\u30c9\u306f\u3001True\u304c\u8fd4\u3055\u308c\u308b\u306e\u3067\u4e2d\u306e\u51e6\u7406\u304c\u5b9f\u884c\u3055\u308c\u308b\u3002<br \/>\n&nbsp;&nbsp;&nbsp;&nbsp;pass<\/p>\n<p>class Student:<\/p>\n<p>&nbsp;&nbsp;&nbsp;&nbsp;def __init__(self, age):<br \/>\n&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;self.age= age<\/p>\n<p>&nbsp;&nbsp;&nbsp;&nbsp;def __bool__(self):<br \/>\n&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;if self.age &gt; 20: <strong># self.age\u304c20\u3088\u308a\u5927\u304d\u3044\u5834\u5408\u306bTrue\u3092\u8fd4\u3059<\/strong><br \/>\n&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;return True<br \/>\n&nbsp;&nbsp;&nbsp;&nbsp;else:<br \/>\n&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;return False <strong># self.age\u304c20\u4ee5\u4e0b\u306e\u5834\u5408\u306bTrue\u3092\u8fd4\u3059<\/strong><\/p>\n<p>student = Student(21)<br \/>\nif student:<br \/>\n&nbsp;&nbsp;&nbsp;&nbsp;pass <strong># student\u306eself.age\u306f21\u306720\u3088\u308a\u5927\u304d\u3044\u305f\u3081\u3001__bool__\u3067True\u304c\u8fd4\u3055\u308c\u5b9f\u884c\u3055\u308c\u308b<\/strong><\/p>\n<p>student = Student(12)<br \/>\nif student:<br \/>\n&nbsp;&nbsp;&nbsp;&nbsp;pass <strong># student\u306eself.age\u306f12\u306720\u4ee5\u4e0b\u306e\u305f\u3081\u3001__bool__\u3067False\u304c\u8fd4\u3055\u308c\u5b9f\u884c\u3055\u308c\u306a\u3044 <\/strong>\n<\/div>\n<\/div>\n<\/div>\n<p>&nbsp;<\/p>\n<div class=\"customized-adsense\"><\/div>\n<h2 class=\"title-border\"><strong>\u30bb\u30a4\u30a6\u30c1\u6f14\u7b97\u5b50\u306e\u5229\u7528(python3.8\u4ee5\u4e0a)<\/strong><\/h2>\n<div style=\"background: #ffffff; padding: 15px; border-radius: 10px; word-break: break-all;\">\n<p>\u30bb\u30a4\u30a6\u30c1\u6f14\u7b97\u5b50\u3068\u306f\u3001python3.8\u4ee5\u4e0a\u304b\u3089\u5b9f\u88c5\u3055\u308c\u305f\u6a5f\u80fd\u3067\u3001\u5909\u6570\u3078\u306e\u5024\u306e\u4ee3\u5165\u3068\u6bd4\u8f03\u3092\u540c\u6642\u306b\u884c\u3046\u3053\u3068\u304c\u3067\u304d\u308b\u6a5f\u80fd\u3067\u3059\u3002<br \/>\n\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u8a18\u8f09\u3057\u307e\u3059\u3002<\/p>\n<p>\u5909\u6570<strong> :=<\/strong> \u5024<\/p>\n<p><strong>:=<\/strong> \u304c\u30bb\u30a4\u30a6\u30c1\u306e\u7259\u3092\u751f\u3084\u3057\u305f\u5f62\u306b\u4f3c\u3066\u3044\u308b\u306e\u3067\u3001\u30bb\u30a4\u30a6\u30c1\u6f14\u7b97\u5b50\u3068\u547c\u3070\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u4f8b\u3048\u3070\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u8a18\u8f09\u3059\u308b\u3068\u3001a\u306b12\u3092\u4ee3\u5165\u3057\u3066\u3001\u305d\u306e\u3042\u3068\u306b10\u3088\u308a\u5927\u304d\u3044\u304b\u3069\u3046\u304b\u6bd4\u8f03\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<div class=\"programming-gray\">\n<h4>Example<\/h4>\n<ul>\n<li>\u30bb\u30a4\u30a6\u30c1\u6f14\u7b97\u5b50\u306e\u4f8b<\/li>\n<\/ul>\n<div class=\"programming-inside\">\nif (a := 12) &gt; 10:<br \/>\n&nbsp;&nbsp;&nbsp;&nbsp;pass <strong># a\u306b12\u3092\u5165\u308c\u3066\u300110\u3088\u308a\u5927\u304d\u3044\u304b\u898b\u3066\u3044\u308b\u300210\u3088\u308a\u5927\u304d\u3044\u306e\u3067\u4e2d\u306e\u51e6\u7406\u306f\u5b9f\u884c\u3055\u308c\u308b<\/strong>\n<\/div>\n<\/div>\n<\/div>\n<p>&nbsp;<\/p>\n<p>\u4ee5\u4e0a\u3001if\u6587\u306b\u3064\u3044\u3066\u8a73\u7d30\u306b\u89e3\u8aac\u3044\u305f\u3057\u307e\u3057\u305f\u3002<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>&nbsp; python\u306eif\u6587\u306e\u57fa\u672c\u7684\u306a\u5b9f\u88c5\u65b9\u6cd5 elif, else\u3092\u7528\u3044\u305fif\u6587\u306e\u6761\u4ef6\u306e\u8ffd\u52a0 \u8ad6\u7406\u578b\u3001\u7a7a\u306e\u30ea\u30b9\u30c8\u3001\u7a7a\u306e\u6587\u5b57\u5217\u306a\u3069\u306e\u6271\u3044 and, or, not, any, all\u306e\u5229\u7528 1\u884c\u3067\u306eif, else [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_uag_custom_page_level_css":"","_uf_show_specific_survey":0,"_uf_disable_surveys":false,"_genesis_hide_title":false,"_genesis_hide_breadcrumbs":false,"_genesis_hide_singular_image":false,"_genesis_hide_footer_widgets":false,"_genesis_custom_body_class":"","_genesis_custom_post_class":"","_genesis_layout":"","footnotes":""},"categories":[9],"tags":[80,14],"class_list":{"0":"post-1659","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-python","7":"tag-if","8":"tag-python","9":"entry","10":"has-post-thumbnail"},"uagb_featured_image_src":{"full":false,"thumbnail":false,"medium":false,"medium_large":false,"large":false,"1536x1536":false,"2048x2048":false,"home-middle":false,"home-top":false,"sidebar-thumbnail":false},"uagb_author_info":{"display_name":"9nmatsumoto","author_link":"https:\/\/www.nblog09.com\/w\/author\/9nmatsumoto\/"},"uagb_comment_info":3,"uagb_excerpt":"&nbsp; python\u306eif\u6587\u306e\u57fa\u672c\u7684\u306a\u5b9f\u88c5\u65b9\u6cd5 elif, else\u3092\u7528\u3044\u305fif\u6587\u306e\u6761\u4ef6\u306e\u8ffd\u52a0 \u8ad6\u7406\u578b\u3001&hellip;","_links":{"self":[{"href":"https:\/\/www.nblog09.com\/w\/wp-json\/wp\/v2\/posts\/1659","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.nblog09.com\/w\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.nblog09.com\/w\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.nblog09.com\/w\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.nblog09.com\/w\/wp-json\/wp\/v2\/comments?post=1659"}],"version-history":[{"count":39,"href":"https:\/\/www.nblog09.com\/w\/wp-json\/wp\/v2\/posts\/1659\/revisions"}],"predecessor-version":[{"id":1983,"href":"https:\/\/www.nblog09.com\/w\/wp-json\/wp\/v2\/posts\/1659\/revisions\/1983"}],"wp:attachment":[{"href":"https:\/\/www.nblog09.com\/w\/wp-json\/wp\/v2\/media?parent=1659"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.nblog09.com\/w\/wp-json\/wp\/v2\/categories?post=1659"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.nblog09.com\/w\/wp-json\/wp\/v2\/tags?post=1659"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}