{"description":"\u81ea\u5206\u7528\u30e1\u30e2 ?? \u6f14\u7b97\u5b50\u306f null \u5408\u4f53\u6f14\u7b97\u5b50\u3068\u547c\u3070\u308c\u3001null \u8a31\u5bb9\u5024\u578b\u304a\u3088\u3073\u53c2\u7167\u578b\u306e\u65e2\u5b9a\u5024\u3092\u5b9a\u7fa9\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3057\u307e\u3059\u3002\u5de6\u5074\u306e\u30aa\u30da\u30e9\u30f3\u30c9\u304c null \u5024\u3067\u306a\u3044\u5834\u5408\u306b\u306f\u3053\u306e\u30aa\u30da\u30e9\u30f3\u30c9\u3092\u8fd4\u3057\u3001null \u5024\u3067\u3042\u308b\u5834\u5408\u306b\u306f\u53f3\u5074\u306e\u30aa\u30da\u30e9\u30f3\u30c9\u3092\u8fd4\u3057\u307e\u3059\u3002 // ?? operator example. int? x = null; // y = x, unless x is null, in which case y = -1. int y = x ?? -1; \u5f15\u7528\u5143 http://msdn.microsoft.com/ja-jp/library/ms173224.aspx","height":"190","blog_url":"https://kkkw.hatenablog.jp/","image_url":null,"width":"100%","version":"1.0","author_name":"devillikeaangel","title":"C#\u306e?? \u6f14\u7b97\u5b50","url":"https://kkkw.hatenablog.jp/entry/20090911/1252665837","provider_name":"Hatena Blog","author_url":"https://blog.hatena.ne.jp/devillikeaangel/","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fkkkw.hatenablog.jp%2Fentry%2F20090911%2F1252665837\" title=\"C#\u306e?? \u6f14\u7b97\u5b50 - kikukawa&#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>","type":"rich","categories":["C#"],"blog_title":"kikukawa's diary","published":"2009-09-11 19:43:57","provider_url":"https://hatena.blog"}