{"id":2066,"date":"2019-05-23T21:24:10","date_gmt":"2019-05-23T12:24:10","guid":{"rendered":"http:\/\/www.python.ambitious-engineer.com\/?p=2066"},"modified":"2020-09-27T20:36:13","modified_gmt":"2020-09-27T11:36:13","slug":"base64%e3%81%ab%e3%82%88%e3%82%8b%e3%82%a8%e3%83%b3%e3%82%b3%e3%83%bc%e3%83%89%e3%81%a8%e3%83%87%e3%82%b3%e3%83%bc%e3%83%89","status":"publish","type":"post","link":"https:\/\/www.python.ambitious-engineer.com\/archives\/2066","title":{"rendered":"Base64\u306b\u3088\u308b\u30a8\u30f3\u30b3\u30fc\u30c9\u3068\u30c7\u30b3\u30fc\u30c9"},"content":{"rendered":"<p>\u3053\u306e\u30da\u30fc\u30b8\u3067\u306fBase64\u306b\u3088\u308b\u30d0\u30a4\u30ca\u30ea\u30c7\u30fc\u30bf\u306e\u6587\u5b57\u5217\u5316\u3068\u30c7\u30b3\u30fc\u30c9\u5316\u3059\u308b\u65b9\u6cd5\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n<h2>Base64\u3068\u306f<\/h2>\n<p>Base64\u3068\u306f\u30d0\u30a4\u30ca\u30ea\u30c7\u30fc\u30bf\u3092\u30c6\u30ad\u30b9\u30c8\u306b\u5909\u63db\u3059\u308b\u4ed5\u69d8\u306e\u4e00\u3064\u3067\u3001\u753b\u50cf\u306a\u3069\u3092\u30c6\u30ad\u30b9\u30c8\u5316\u3059\u308b\u969b\u306b\u4f7f\u308f\u308c\u307e\u3059\u3002\u753b\u50cf\u3084\u9375\u3001\u6697\u53f7\u5316\u30c7\u30fc\u30bf\u3001\u96fb\u5b50\u7f72\u540d\u306f\u30d0\u30a4\u30ca\u30ea\u306a\u306e\u3067\u3059\u304c\u3001Base64\u3092\u4f7f\u7528\u3059\u308b\u3068\u305f\u3060\u306eascii\u6587\u5b57\u5217\u306b\u306a\u308b\u305f\u3081\u3001\u30e1\u30fc\u30eb\u3084html\u306etext\u30d5\u30a9\u30fc\u30e0\u304b\u3089\u9001\u4fe1\u3059\u308b\u3053\u3068\u304c\u53ef\u80fd\u3068\u306a\u308a\u307e\u3059\u3002\u307e\u305f\u3001\u6700\u8fd1\u3067\u306f\u30d6\u30e9\u30a6\u30b6\u306e\u901a\u4fe1\u56de\u6570\u3092\u6e1b\u3089\u3059\u305f\u3081\u306b\u5c0f\u3055\u3044\u753b\u50cfBase64\u3092\u4f7f\u7528\u3059\u308b\u30b5\u30fc\u30d3\u30b9\u3082\u5897\u3048\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\uff08\u3088\u308a\u5177\u4f53\u7684\u306b\u306fA\u2013Z, a\u2013z, 0\u20139 \u307e\u3067\u306e62\u6587\u5b57\u3068\u3001\u8a18\u53f72\u3064 (+, \/)\u3001\u306e64\u7a2e\u985e\u306e\u6587\u5b57\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002\u3055\u3089\u306b\u4e00\u5b9a\u306e\u6587\u5b57\u6570\u306b\u63c3\u3048\u308b\u305f\u3081 = \u304c\u30d1\u30c7\u30a3\u30f3\u30b0\u306b\u7528\u3044\u3089\u308c\u307e\u3059\u3002\uff09<\/p>\n<p>\u307e\u305f\u3001Base64\u306b\u5909\u63db\u3059\u308b\u3068\u30c7\u30fc\u30bf\u91cf\u304c\u304a\u304a\u3088\u305d1.3\u500d\u7a0b\u5ea6\u5897\u52a0\u3059\u308b\u3001\u3068\u3044\u3046\u70b9\u306b\u306f\u6ce8\u610f\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<h2>base64<\/h2>\n<p>Python\u3067\u306f\u6a19\u6e96\u30e9\u30a4\u30d6\u30e9\u30ea\u306b\u305d\u306e\u540d\u3082\u305a\u3070\u308abase64\u3068\u3044\u3046\u540d\u3067\u63d0\u4f9b\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u305f\u3081\u7279\u306b\u5225\u9014\u4f55\u304b\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3059\u308b\u5fc5\u8981\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u3055\u3063\u305d\u304f\u4f7f\u3063\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<h3>\u30d0\u30a4\u30ca\u30ea\u3092Base64\u3067\u30a8\u30f3\u30b3\u30fc\u30c9\u3059\u308b<\/h3>\n<p>base64.b64encode()\u306e\u5f15\u6570\u3067\u30d0\u30a4\u30ca\u30ea\u30c7\u30fc\u30bf\u3092\u6307\u5b9a\u3059\u308b\u3068\u3001Base64\u30a8\u30f3\u30b3\u30fc\u30c9\u3055\u308c\u305fbytes\u578b\u3092\u5f97\u308b\u3053\u3068\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u4ee5\u4e0b\u306e\u30b5\u30f3\u30d7\u30eb\u3067\u306f\u9069\u5f53\u306a\u30d0\u30a4\u30c8\u3092base64\u306b\u30a8\u30f3\u30b3\u30fc\u30c9\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<pre class=\"brush: python; title: ; notranslate\" title=\"\">\r\nimport base64\r\n\r\nbytes_data = b'test text'\r\nb64encoded = base64.b64encode(bytes_data)\r\nprint(b64encoded.decode())  # dGVzdCB0ZXh0\r\n<\/pre>\n<h3>Base64\u3092\u30c7\u30b3\u30fc\u30c9\u3059\u308b<\/h3>\n<p>\u5148\u7a0b\u306e\u7d9a\u304d\u3067\u30a8\u30f3\u30b3\u30fc\u30c9\u3057\u305f\u30c7\u30fc\u30bf\u3092\u30c7\u30b3\u30fc\u30c9\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002\u30c7\u30b3\u30fc\u30c9\u3059\u308b\u5834\u5408\u306fbase64.b64decode\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<\/p>\n<pre class=\"brush: python; title: ; notranslate\" title=\"\">\r\nimport base64\r\n\r\nbytes_data = b'test text'\r\nb64encoded = base64.b64encode(bytes_data)\r\ndata = base64.b64decode(b64encoded)\r\nprint(data)  # b'test text'\r\n\r\n<\/pre>\n<h2>\u753b\u50cf\u3092Base64\u3067\u30a8\u30f3\u30b3\u30fc\u30c9\/\u30c7\u30b3\u30fc\u30c9\u3059\u308b<\/h2>\n<p>\u5f53\u7136\u753b\u50cf\u3082\u30a8\u30f3\u30b3\u30fc\u30c9\u53ef\u80fd\u3067\u3059\u3002\u753b\u50cf\u3092\u30d0\u30a4\u30ca\u30ea\u3068\u3057\u3066open\u3057\u3066read\u3057\u307e\u3059\u3002<\/p>\n<pre class=\"brush: python; title: ; notranslate\" title=\"\">\r\nimport base64\r\n\r\n# \u753b\u50cf\u30d5\u30a1\u30a4\u30eb\u3092\u958b\u3044\u3066base64\u306b\u5909\u63db\r\nwith open(&quot;python-logo.png&quot;, 'br') as f1:\r\n    b64_img = base64.b64encode(f1.read())\r\n    print(str(b64_img))  # iVBORw0KGgoAAAANSUhEU\u30fb\u30fb\u30fb\r\n\r\n# base64\u3092\u30c6\u30ad\u30b9\u30c8\u5f62\u5f0f\u3067\u4fdd\u5b58\r\nwith open(&quot;python-logo.txt&quot;, &quot;w&quot;) as f2:\r\n    f2.write(b64_img.decode())\r\n\r\n<\/pre>\n<p>\u4e0a\u306e\u30b5\u30f3\u30d7\u30eb\u3067\u306f\u753b\u50cf\u306epng\u30d5\u30a1\u30a4\u30eb\u3092\u8aad\u307f\u51fa\u3057Base64\u3067\u30a8\u30f3\u30b3\u30fc\u30c9\u3057\u305f\u3082\u306e\u3092\u6587\u5b57\u5217\u3068\u3057\u3066\u30c6\u30ad\u30b9\u30c8\u30c7\u30fc\u30bf\u306b\u4fdd\u5b58\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u2193\u306e\u753b\u50cf\u306f\u4e0a\u306e\u30b3\u30fc\u30c9\u3067\u751f\u6210\u3057\u305fBase64\u3067\u8868\u793a\u3057\u3066\u3044\u307e\u3059\u3002<br \/>\n<img src=\"data:image\/png;base64,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\n\"\/><\/p>\n<p>\u4e00\u65b9\u3001\u4fdd\u5b58\u3057\u305f\u30c6\u30ad\u30b9\u30c8\u3092Base64\u3067\u30c7\u30b3\u30fc\u30c9\u3057\u3066png\u306b\u623b\u3059\u5834\u5408\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u884c\u3044\u307e\u3059\u3002<\/p>\n<pre class=\"brush: python; title: ; notranslate\" title=\"\">\r\nimport base64\r\n\r\n# base64\u306e\u30c6\u30ad\u30b9\u30c8\u3092\u958b\u304f\r\nwith open(&quot;python-logo.txt&quot;, 'r') as f3:\r\n    data = f3.read()\r\n    print(data)\r\n\r\n# base64\u306e\u30c6\u30ad\u30b9\u30c8\u3092base64\u306ebytes\u578b\u306b\u5909\u63db\u5f8c\u3001\u901a\u5e38\u306ebytes\u578b\u306b\u5909\u63db\u3057\u3066\u4fdd\u5b58\r\nimg = base64.b64decode(data.encode())\r\nwith open(&quot;python-logo2.png&quot;, 'bw') as f4:\r\n    f4.write(img)\r\n\r\n<\/pre>\n<p>png\u306b\u9650\u3089\u305a\u9375\u3084\u96fb\u5b50\u7f72\u540d\u3001pdf\u7b49\u3067\u3082\u540c\u69d8\u306b\u30a8\u30f3\u30b3\u30fc\u30c9\u3059\u308b\u3053\u3068\u304c\u53ef\u80fd\u3067\u3059\u306e\u3067\u8a66\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u3053\u306e\u30da\u30fc\u30b8\u3067\u306fBase64\u306b\u3088\u308b\u30d0\u30a4\u30ca\u30ea\u30c7\u30fc\u30bf\u306e\u6587\u5b57\u5217\u5316\u3068\u30c7\u30b3\u30fc\u30c9\u5316\u3059\u308b\u65b9\u6cd5\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u307e\u3059\u3002 Base64\u3068\u306f Base64\u3068\u306f\u30d0\u30a4\u30ca\u30ea\u30c7\u30fc\u30bf\u3092\u30c6\u30ad\u30b9\u30c8\u306b\u5909\u63db\u3059\u308b\u4ed5\u69d8\u306e\u4e00\u3064\u3067\u3001\u753b\u50cf\u306a\u3069\u3092\u30c6\u30ad\u30b9\u30c8\u5316\u3059\u308b\u969b\u306b\u4f7f\u308f\u308c\u307e\u3059\u3002...<\/p>\n","protected":false},"author":1,"featured_media":2945,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[13],"tags":[184],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.python.ambitious-engineer.com\/wp-json\/wp\/v2\/posts\/2066"}],"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=2066"}],"version-history":[{"count":12,"href":"https:\/\/www.python.ambitious-engineer.com\/wp-json\/wp\/v2\/posts\/2066\/revisions"}],"predecessor-version":[{"id":2946,"href":"https:\/\/www.python.ambitious-engineer.com\/wp-json\/wp\/v2\/posts\/2066\/revisions\/2946"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.python.ambitious-engineer.com\/wp-json\/wp\/v2\/media\/2945"}],"wp:attachment":[{"href":"https:\/\/www.python.ambitious-engineer.com\/wp-json\/wp\/v2\/media?parent=2066"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.python.ambitious-engineer.com\/wp-json\/wp\/v2\/categories?post=2066"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.python.ambitious-engineer.com\/wp-json\/wp\/v2\/tags?post=2066"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}