{"width":"100%","categories":["C#"],"author_url":"https://blog.hatena.ne.jp/potisan/","blog_url":"https://potisan-programming-memo.hatenablog.jp/","height":"190","image_url":null,"version":"1.0","url":"https://potisan-programming-memo.hatenablog.jp/entry/2020/09/28/223306","provider_url":"https://hatena.blog","author_name":"potisan","description":"C#\u3067\u306fEnumerable.ToLookup\uff08LINQ\uff09\u3092\u4f7f\u3046\u3053\u3068\u3067\u914d\u5217\u3084\u30ea\u30b9\u30c8\uff08IEnumerable\uff09\u3092\u6761\u4ef6\u3054\u3068\u306b\u5206\u985e\u3067\u304d\u307e\u3059\u3002ToDictionary\u3068\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u8f9e\u66f8\u3082\u4f5c\u6210\u3067\u304d\u307e\u3059\u3002 \u6a21\u5f0f\u56f3\uff1a Enumerable.ToLookup\uff1a\u25a0\u25a1\u25a0\u25a1\u25cb \u2192 \u25a0\u25a0\u3001\u25a1\u25a1\u3001\u25cb \u25a0\u25a1\u25cb\uff1a\u5206\u985e\u3055\u308c\u305f\u8981\u7d20\uff08\u30ad\u30fc\u30bb\u30ec\u30af\u30bf\u304c\u540c\u3058\u30ad\u30fc\u3092\u8fd4\u3059\u8981\u7d20\uff09 Enumerable.ToLookup\u306e\u4f8b \u6574\u6570\u914d\u5217\u30923\u3067\u5272\u3063\u305f\u4f59\u308a\u3067\u5206\u985e\u3059\u308b\u3002 \u6587\u5b57\u5217\u914d\u5217\u3092\u6700\u5f8c\u306e\u6587\u5b57\u306e\u5927\u6587\u5b57\u3067\u5206\u985e\u3057\u3066\u672b\u5c3e\u306b'0'\u3092\u3064\u3051\u308b\u3002 \u6587\u5b57\u5217\u914d\u5217\u3092\u672b\u5c3e\u304c'c'\u304b\u3069\u3046\u304b\u3067\u5206\u985e\u3057\u3066\u5148\u982d\u306e2\u6587\u5b57\u306b\u3059\u308b\u3002 Enumerable.ToLookup\u3068Enum\u2026","type":"rich","blog_title":"potisan\u306e\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u30e1\u30e2","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fpotisan-programming-memo.hatenablog.jp%2Fentry%2F2020%2F09%2F28%2F223306\" title=\"C# Enumerable.ToLookup\uff08LINQ\uff09\u3067\u914d\u5217\u3084\u30ea\u30b9\u30c8\uff08IEnumerable\uff09\u3092\u6761\u4ef6\u3054\u3068\u306b\u5206\u3051\u308b - potisan\u306e\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u30e1\u30e2\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","provider_name":"Hatena Blog","published":"2020-09-28 22:33:06","title":"C# Enumerable.ToLookup\uff08LINQ\uff09\u3067\u914d\u5217\u3084\u30ea\u30b9\u30c8\uff08IEnumerable\uff09\u3092\u6761\u4ef6\u3054\u3068\u306b\u5206\u3051\u308b"}