{"author_name":"nean","author_url":"https://blog.hatena.ne.jp/nean/","url":"https://nean.hatenadiary.com/entry/20110609/1307592141","version":"1.0","published":"2011-06-09 13:02:21","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fnean.hatenadiary.com%2Fentry%2F20110609%2F1307592141\" title=\"Ruby\u3092\u7528\u3044\u3066\u30d0\u30a4\u30ca\u30ea\u30d5\u30a1\u30a4\u30eb\u3092\u8aad\u307f\u8fbc\u3080/\u6570\u5024\u5909\u63db - nean\u306e\u30d6\u30ed\u30b0\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","title":"Ruby\u3092\u7528\u3044\u3066\u30d0\u30a4\u30ca\u30ea\u30d5\u30a1\u30a4\u30eb\u3092\u8aad\u307f\u8fbc\u3080/\u6570\u5024\u5909\u63db","provider_url":"https://hatena.blog","height":"190","image_url":null,"provider_name":"Hatena Blog","blog_url":"https://nean.hatenadiary.com/","blog_title":"nean\u306e\u30d6\u30ed\u30b0","width":"100%","type":"rich","categories":["ruby"],"description":"Ruby\u306b\u30d0\u30a4\u30ca\u30ea\u30d5\u30a1\u30a4\u30eb\u3092\u8aad\u307f\u8fbc\u307e\u305b\u3066\u6570\u5024\uff08\u30c6\u30ad\u30b9\u30c8\uff09\u5909\u63db\u3059\u308b\u65b9\u6cd5\u306f\u306a\u3044\u3082\u306e\u304b\u3068\u8abf\u3079\u3066\u3044\u305f\u3002\u7d50\u8ad6\u3068\u3057\u3066\u306f\u3069\u3046\u3084\u3089\u30d0\u30a4\u30c8\u5358\u4f4d\u3067\u8aad\u307f\u8fbc\u3093\u3067\u3001unpack\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u3048\u3070\u826f\u3044\u3068\u306e\u3053\u3068\u3002\u4ee5\u4e0b\u3001\u30b5\u30f3\u30d7\u30eb io = File.open(\"hoge.dat\", \"rb\") # \u30d0\u30a4\u30ca\u30ea\u30d5\u30a1\u30a4\u30eb\u306e\u8aad\u307f\u8fbc\u307f sampn = io.read(400) # 400\u30d0\u30a4\u30c8\u8aad\u307f\u8fbc\u3080 m = sampn.unpack(\"i*\") # unpack\u30e1\u30bd\u30c3\u30c9\u3067\u6570\u5024\u5909\u63db p m \u53c2\u8003\u6587\u732e \u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u8a00\u8a9e Ruby \u30ea\u30d5\u30a1\u30ec\u30f3\u30b9\u30de\u30cb\u30e5\u30a2\u30eb"}