{"id":275,"date":"2017-02-07T11:29:00","date_gmt":"2017-02-07T02:29:00","guid":{"rendered":"http:\/\/www.python.ambitious-engineer.com\/?p=275"},"modified":"2018-01-15T23:39:09","modified_gmt":"2018-01-15T14:39:09","slug":"%e3%82%b8%e3%82%a7%e3%83%8d%e3%83%ac%e3%83%bc%e3%82%bf","status":"publish","type":"post","link":"https:\/\/www.python.ambitious-engineer.com\/archives\/275","title":{"rendered":"\u30b8\u30a7\u30cd\u30ec\u30fc\u30bf"},"content":{"rendered":"

\u30b8\u30a7\u30cd\u30ec\u30fc\u30bf\u306e\u57fa\u672c<\/h2>\n

\u30b8\u30a7\u30cd\u30ec\u30fc\u30bf\u3068__next__()\u30e1\u30bd\u30c3\u30c9<\/h3>\n

\u4ed6\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u8a00\u8a9e\u3067\u306f\u805e\u304d\u6163\u308c\u306a\u3044\u8a00\u8449\u3060\u3068\u601d\u3044\u307e\u3059\u304c\u3001Python\u306e\u95a2\u6570\u306b\u306f\u30b8\u30a7\u30cd\u30ec\u30fc\u30bf\u3068\u3044\u3046\u5c11\u3057\u5909\u308f\u3063\u305f\u5b9f\u88c5\u3092\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u30b8\u30a7\u30cd\u30ec\u30fc\u30bf\u3092\u5229\u7528\u3059\u308b\u3068\u3001\u95a2\u6570\u306e\u51e6\u7406\u306e\u9014\u4e2d\u3067\u51e6\u7406\u3092\u4e00\u65e6\u4e2d\u65ad\u3057\u3066\u5024\u3092\u8fd4\u3059\u3053\u3068\u304c\u3067\u304d(\u3053\u308c\u3092yield\u3068\u547c\u3073\u307e\u3059)\u3001\u305d\u306e\u5f8c\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u51e6\u7406\u3092\u518d\u958b\u3059\u308b\u3053\u3068\u304c\u53ef\u80fd\u3068\u306a\u308a\u307e\u3059\u3002\u307e\u305f\u3001\u30eb\u30fc\u30d7\u51e6\u7406\u3067\u6271\u3046\u3053\u3068\u3082\u53ef\u80fd\u3067\u3059\u3002<\/p>\n

\u30a4\u30e1\u30fc\u30b8\u304c\u308f\u304d\u3065\u3089\u3044\u304b\u3068\u601d\u3044\u307e\u3059\u306e\u3067\u3001\u3055\u3063\u305d\u304f\u30b5\u30f3\u30d7\u30eb\u3067\u78ba\u8a8d\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n

\r\ndef sample_generator():\r\n    """ \u30b8\u30a7\u30cd\u30ec\u30fc\u30bf\u95a2\u6570 """\r\n    yield '\u304a\u306f\u3088\u3046'\r\n    yield '\u3053\u3093\u306b\u3061\u306f'\r\n    yield '\u3053\u3093\u3070\u3093\u3070'\r\n\r\ngen_func = sample_generator() # \u30b8\u30a7\u30cd\u30ec\u30fc\u30bf\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u751f\u6210\u3059\u308b\r\n\r\ntext = gen_func.__next__()\r\nprint(text) # \u304a\u306f\u3088\u3046\r\n\r\ntext = gen_func.__next__()\r\nprint(text) # \u3053\u3093\u306b\u3061\u306f\r\n\r\ntext = gen_func.__next__()\r\nprint(text) # \u3053\u3093\u3070\u3093\u306f\r\n<\/pre>\n
\u30b3\u30fc\u30c9\u306e\u8aac\u660e\u3067\u3059\u3002<\/p>\n
\u30b5\u30f3\u30d7\u30eb\u306e\u30b8\u30a7\u30cd\u30ec\u30fc\u30bf\u95a2\u6570\u306fyield\u30923\u56de\u6301\u3063\u3066\u3044\u307e\u3059\u30026\u884c\u76ee\u3067sample_generator\u95a2\u6570\u3092\u547c\u3073\u51fa\u3057\u3066\u3044\u307e\u3059\u304c\u3001\u95a2\u6570\u304b\u3089\u623b\u308a\u5024\u3092\u53d7\u3051\u53d6\u3063\u3066\u3044\u308b\u308f\u3051\u3067\u306f\u306a\u304f\u3001\u30a4\u30c6\u30e9\u30d6\u30eb(=\u53cd\u5fa9\u53ef\u80fd)\u306a\u30b8\u30a7\u30cd\u30ec\u30fc\u30bf\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u53d7\u3051\u53d6\u3063\u3066\u3044\u307e\u3059\u30029\u300112\u300115\u884c\u76ee\u306e__next__()\u30e1\u30bd\u30c3\u30c9\u3067\u305d\u308c\u305e\u308c\u306eyield\u307e\u3067\u5b9f\u884c\u3055\u308c\u307e\u3059\u3002<\/p>\n
\u30b8\u30a7\u30cd\u30ec\u30fc\u30bf\u306f\u30a4\u30c6\u30ec\u30fc\u30bf\u306e\u4e00\u7a2e\u306a\u306e\u3067\u3001\u7d44\u8fbc\u307f\u306enext\u95a2\u6570\u3092\u5229\u7528\u3057\u305f\u308a\u3001\u30eb\u30fc\u30d7\u3067\u51e6\u7406\u3059\u308b\u3053\u3068\u304c\u53ef\u80fd\u3067\u3059\u3002\u547c\u51fa\u3057\u5f8c\u306e\u51e6\u7406\u3092\u30eb\u30fc\u30d7\u3067\u66f8\u304d\u306a\u304a\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n
\r\ndef sample_generator():\r\n    yield '\u304a\u306f\u3088\u3046'\r\n    yield '\u3053\u3093\u306b\u3061\u306f'\r\n    yield '\u3053\u3093\u3070\u3093\u3070'\r\n\r\ngen_func = sample_generator() # \u30b8\u30a7\u30cd\u30ec\u30fc\u30bf\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u751f\u6210\u3059\u308b\r\n\r\nfor text in gen_func:\r\n    print(text)\r\n<\/pre>\n
\u30b8\u30a7\u30cd\u30ec\u30fc\u30bf\u3068\u7121\u9650\u6570\u5217<\/h3>\n
\u3053\u306e\u4e00\u98a8\u5909\u308f\u3063\u305f\u30b8\u30a7\u30cd\u30ec\u30fc\u30bf\u3067\u3059\u304c\u3001\u5229\u7528\u3059\u308b\u30e1\u30ea\u30c3\u30c8\u306f\u306a\u3093\u3067\u3057\u3087\u3046\u304b\uff1f\u4f8b\u3048\u3070\u3001\u4f55\u9805\u76ee\u307e\u3067\u4f7f\u3046\u304b\u308f\u304b\u3089\u306a\u3044\u6570\u5217\u3092\u4e88\u3081\u751f\u6210\u3057\u3066\u30011\u3064\u3065\u3064\u53d6\u308a\u51fa\u3059\u51e6\u7406\u3064\u3044\u3066\u8003\u3048\u3066\u307f\u307e\u3059\u3002\u73fe\u5b9f\u7684\u306b\u4f7f\u3046\u7a0b\u5ea6\u306e\u30b5\u30a4\u30ba\u3092\u898b\u7a4d\u3082\u3063\u3066\u5927\u304d\u306a\u30ea\u30b9\u30c8\u3092\u4f5c\u308b\u65b9\u6cd5\u304c\u8003\u3048\u3089\u308c\u307e\u3059\u304c\u3001\u898b\u7a4d\u3082\u308a\u304c\u60aa\u3051\u308c\u3070\u4e0d\u8db3\u3057\u3066\u3057\u307e\u3044\u3059\u3057\u3001\u307b\u3068\u3093\u3069\u4f7f\u308f\u306a\u3044\u30c7\u30fc\u30bf\u3092\u78ba\u4fdd\u3057\u7d9a\u3051\u308b\u305f\u3081\u30e1\u30e2\u30ea\u304c\u3082\u3063\u305f\u3044\u306a\u3044\u3067\u3059\u306d\u3002\u305d\u3093\u306a\u3068\u304d\u306f\u30b8\u30a7\u30cd\u30ec\u30fc\u30bf\u3092\u4f7f\u3044\u307e\u3057\u3087\u3046\u3002<\/p>\n
\u4ee5\u4e0b\u3001\u30d5\u30a3\u30dc\u30ca\u30c3\u30c1\u6570\u5217\u3092yield\u3067\u8fd4\u3059\u30b8\u30a7\u30cd\u30ec\u30fc\u30bf\u95a2\u6570\u306e\u30b5\u30f3\u30d7\u30eb\u3067\u3059\u3002
\n(\u30d5\u30a3\u30dc\u30ca\u30c3\u30c1\u6570\u5217\u3068\u306f\u521d\u9805f0=1\u3068\u305d\u306e\u6b21\u306e\u9805f1=1\u304c\u4e0e\u3048\u3089\u308c\u3066\u3044\u305f\u5834\u5408\u3001fn=fn + fn-1\u3067\u5b9a\u7fa9\u3055\u308c\u308b\u6570\u5217\u3067\u3059\u3002)<\/p>\n
\r\ndef fibonacci_generator():\r\n    f0, f1 = 0, 1\r\n    while True:\r\n        yield f0\r\n        f0, f1 = f1, f0 + f1\r\n\r\ngen_func = fibonacci_generator() # \u30b8\u30a7\u30cd\u30ec\u30fc\u30bf\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u751f\u6210\u3059\u308b\r\n\r\nfor i in range(0, 10):\r\n    # 10\u500b\u53d6\u5f97\u3059\u308b\r\n    num = next(gen_func)\r\n    print(num)\r\n<\/pre>\n
\u3053\u306e\u5b9f\u88c5\u306a\u3089\u3070\u3001\u5de8\u5927\u306a\u30ea\u30b9\u30c8\u3092\u4e88\u3081\u4f5c\u3089\u306a\u304f\u3066\u3082\u3001\u5fc5\u8981\u306a\u3068\u304d\u306b\u6b21\u306e\u9805\u3092\u53d6\u5f97\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u30c4\u30ea\u30fc\u3084\u30ab\u30c6\u30b4\u30ea\u30c4\u30ea\u30fc\u3068\u3044\u3063\u305f\u6700\u6728\u69cb\u9020\u3092\u6301\u3063\u305f\u30c7\u30fc\u30bf\u3092\u8868\u5f62\u5f0f\u306b\u5909\u63db\u3059\u308b\u969b\u306b\u3082\u6d3b\u7528\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n
\u30b8\u30a7\u30cd\u30ec\u30fc\u30bf\u306e\u30e1\u30bd\u30c3\u30c9<\/h2>\n
\u30b8\u30a7\u30cd\u30ec\u30fc\u30bf\u306e\u30e1\u30bd\u30c3\u30c9\u306f\u3001\u3055\u304d\u307b\u3069\u7d39\u4ecb\u3057\u305f__next__()\u30e1\u30bd\u30c3\u30c9\u4ee5\u5916\u306b\u3001send()\u30e1\u30bd\u30c3\u30c9\u3001throw()\u30e1\u30bd\u30c3\u30c9\u3001close()\u30e1\u30bd\u30c3\u30c9\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n
\u9806\u756a\u306b\u8aac\u660e\u3057\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n
send()\u30e1\u30bd\u30c3\u30c9<\/h3>\n
\u518d\u958b\u5f85\u3061\u306e\u30b8\u30a7\u30cd\u30ec\u30fc\u30bf\u306b\u5bfe\u3057\u3001\u5024\u3092\u8a2d\u5b9a\u3057\u307e\u3059\u3002send\u30e1\u30bd\u30c3\u30c9\u3067\u6307\u5b9a\u3057\u305f\u5024\u306fyield\u5f0f\u306e\u5024\u3068\u3057\u3066\u8a2d\u5b9a\u3055\u308c\u307e\u3059\u3002<\/p>\n
\r\ndef sample_generator():\r\n    text = yield '\u304a\u306f\u3088\u3046'\r\n    yield text\r\n    yield text\r\n   \r\ngen_func = sample_generator() # \u30b8\u30a7\u30cd\u30ec\u30fc\u30bf\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u751f\u6210\u3059\u308b\r\n\r\ntext = next(gen_func)\r\nprint(text)\r\n\r\ntext = gen_func.send('\u3053\u3093\u306b\u3061\u306f')\r\nprint(text)\r\n\r\ntext = next(gen_func)\r\nprint(text)\r\n<\/pre>\n
8\u884c\u76ee\u3067\u30b8\u30a7\u30cd\u30ec\u30fc\u30bf\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u304b\u3089\u5024\u3092\u53d6\u5f97\u3057\u307e\u3059\u3002<\/p>\n
11\u884c\u76ee\u3067\u5024\u3092\u9001\u51fa\u3057\u5024\u3092\u8a2d\u5b9a\u3057\u30013\u884c\u76ee\u306eyield\u3067\u8fd4\u3055\u308c\u305f\u5024\u3092\u51fa\u529b\u3057\u307e\u3059\u3002<\/p>\n
14\u884c\u76ee\u306enext\u3067\u306f4\u884c\u76ee\u306eyield\u3067\u8fd4\u3055\u308c\u305f\u5024\u3092\u51fa\u529b\u3057\u307e\u3059\u3002<\/p>\n
throw()\u30e1\u30bd\u30c3\u30c9<\/h3>\n
\u518d\u958b\u5f85\u3061\u306e\u30b8\u30a7\u30cd\u30ec\u30fc\u30bf\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306b\u5bfe\u3057\u3001\u4f8b\u5916\u3092\u9001\u51fa\u3057\u307e\u3059\u3002<\/p>\n
close()\u30e1\u30bd\u30c3\u30c9<\/h3>\n
\u518d\u958b\u5f85\u3061\u306e\u30b8\u30a7\u30cd\u30ec\u30fc\u30bf\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u6b63\u5e38\u7d42\u4e86\u3055\u305b\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u30b8\u30a7\u30cd\u30ec\u30fc\u30bf\u306e\u57fa\u672c \u30b8\u30a7\u30cd\u30ec\u30fc\u30bf\u3068__next__()\u30e1\u30bd\u30c3\u30c9 \u4ed6\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u8a00\u8a9e\u3067\u306f\u805e\u304d\u6163\u308c\u306a\u3044\u8a00\u8449\u3060\u3068\u601d\u3044\u307e\u3059\u304c\u3001Python\u306e\u95a2\u6570\u306b\u306f\u30b8\u30a7\u30cd\u30ec\u30fc\u30bf\u3068\u3044\u3046\u5c11\u3057\u5909\u308f\u3063\u305f\u5b9f\u88c5\u3092\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u30b8\u30a7\u30cd\u30ec\u30fc\u30bf\u3092\u5229\u7528\u3059\u308b\u3068...<\/p>\n","protected":false},"author":1,"featured_media":3485,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[2],"tags":[210],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.python.ambitious-engineer.com\/wp-json\/wp\/v2\/posts\/275"}],"collection":[{"href":"https:\/\/www.python.ambitious-engineer.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.python.ambitious-engineer.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.python.ambitious-engineer.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.python.ambitious-engineer.com\/wp-json\/wp\/v2\/comments?post=275"}],"version-history":[{"count":8,"href":"https:\/\/www.python.ambitious-engineer.com\/wp-json\/wp\/v2\/posts\/275\/revisions"}],"predecessor-version":[{"id":3484,"href":"https:\/\/www.python.ambitious-engineer.com\/wp-json\/wp\/v2\/posts\/275\/revisions\/3484"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.python.ambitious-engineer.com\/wp-json\/wp\/v2\/media\/3485"}],"wp:attachment":[{"href":"https:\/\/www.python.ambitious-engineer.com\/wp-json\/wp\/v2\/media?parent=275"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.python.ambitious-engineer.com\/wp-json\/wp\/v2\/categories?post=275"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.python.ambitious-engineer.com\/wp-json\/wp\/v2\/tags?post=275"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}