{"height":"190","blog_url":"https://devlights.hatenablog.com/","categories":["C#","Linq"],"width":"100%","image_url":null,"url":"https://devlights.hatenablog.com/entry/20100913/p2","author_name":"gsf_zero1","type":"rich","published":"2010-09-13 00:00:00","description":"\u4eca\u56de\u306f\u3001Sum\u62e1\u5f35\u30e1\u30bd\u30c3\u30c9\u306b\u3064\u3044\u3066\u3067\u3059\u3002 Sum\u62e1\u5f35\u30e1\u30bd\u30c3\u30c9\u306f\u3001\u6587\u5b57\u901a\u308a\u5408\u8a08\u3092\u8fd4\u3057\u307e\u3059\u3002 Sum\u62e1\u5f35\u30e1\u30bd\u30c3\u30c9\u306b\u306f\u3001\u975e\u5e38\u306b\u591a\u304f\u306e\u30aa\u30fc\u30d0\u30fc\u30ed\u30fc\u30c9\u304c\u5b58\u5728\u3057\u307e\u3059\u3002 \u3053\u3053\u3067\u306f\u3001int32\u306e\u5206\u306e\u307f\u8a18\u8ff0\u3057\u307e\u3059\u3002 \uff08decimal, int, long, single\u6bce\u306b\u5f15\u6570\u7121\u3057\u3068\u5f15\u6570\u6709\u308a\u306e\u30d1\u30bf\u30fc\u30f3\u3068\u3001\u5de6\u8a18\u306e\u578b\u306eNullable\u578b\u306e\u5206\uff09 public static int Sum( this IEnumerable<int> source ) public static int Sum<TSource>( this IEnumerable<TSource> source, Func<TSource, int>\u2026","blog_title":"\u3044\u308d\u3044\u308d\u5099\u5fd8\u9332\u65e5\u8a18","version":"1.0","provider_name":"Hatena Blog","author_url":"https://blog.hatena.ne.jp/gsf_zero1/","title":" Linq\u5165\u9580\u8a18-36 (LINQ To Object, Sum)","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fdevlights.hatenablog.com%2Fentry%2F20100913%2Fp2\" title=\" Linq\u5165\u9580\u8a18-36 (LINQ To Object, Sum) - \u3044\u308d\u3044\u308d\u5099\u5fd8\u9332\u65e5\u8a18\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","provider_url":"https://hatena.blog"}