{"categories":["C#3.0"],"author_name":"Nobuhisa","provider_url":"https://hatena.blog","height":"190","image_url":null,"width":"100%","description":"ExpressionTree\u306e\u7df4\u7fd2\u306bC#3.0\u3067\u7c21\u6613\u96fb\u5353\uff08\uff1f\uff09\u4f5c\u3063\u3066\u307f\u305f\u3088\uff01 using CalcFunc = Func<int, int, int>; public class Calc { private Expression<CalcFunc> baseExp = ( ( a, b ) => a + b ); private delegate BinaryExpression Operator( Expression a, Expression b ); private static Dictionary<string, Operator> table = new Dictionary<\u2026","author_url":"https://blog.hatena.ne.jp/Nobuhisa/","blog_url":"https://nobuhisa.hatenablog.jp/","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fnobuhisa.hatenablog.jp%2Fentry%2F20070818%2F1187374224\" title=\" - Nobuhisa&#39;s diary\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","url":"https://nobuhisa.hatenablog.jp/entry/20070818/1187374224","title":"","provider_name":"Hatena Blog","type":"rich","published":"2007-08-18 03:10:24","blog_title":"Nobuhisa's diary","version":"1.0"}