{"published":"2007-08-21 00:00:00","height":"190","author_name":"tattyu","description":"exp and val1 or val2exp\u304ctrue\u306a\u3089val1\u3001false\u306a\u3089val2\u3092\u8fd4\u3059\u3002 true\u3068false\u3092\u8fd4\u3059\u3088\u3046\u306a\u4f7f\u3044\u65b9\u3092\u3059\u308b\u3068\u96e3\u3057\u3044\u3051\u3069\u3001(val1\u304cfalse\u3060\u3068val2\u304c\u9078\u629e\u3055\u308c\u3066\u3057\u307e\u3046\uff09\u305d\u3046\u3044\u3046\u4f7f\u3044\u65b9\u3057\u306a\u3051\u308c\u3070\u4fbf\u5229\u3002 exp\u304ctrue val1(nil,false\u4ee5\u5916)\u304c\u9078\u629e\u3055\u308c\u3001or\u306f\u5de6\u306e\u9805\u304cfalse\u304bnil\u3067\u306a\u3051\u308c\u3070\u5de6\u306e\u9805\u3092\u9078\u629e\u3059\u308b\u306e\u3067\u7d50\u679c\u3068\u3057\u3066val1\u3092\u5f97\u308b true and val1 or val2 \u2193 val1 or val2 \u2193 val1 exp\u304cfalse(nil) and\u6f14\u7b97\u5b50\u306ffalse/nil\u306e\u6642\u306f\u5de6\u306e\u9805\u3064\u307e\u308afalse/nil\u304c\u9078\u629e\u3055\u308c\u308b\u304co\u2026","author_url":"https://blog.hatena.ne.jp/tattyu/","title":"2\u9805\u6f14\u7b97\u5b50\u3092\u4f7f\u3063\u305f3\u9805\u6f14\u7b97\u5b50\u98a8\u5b9f\u88c5","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Ftattyu.hatenablog.com%2Fentry%2F20070821%2Fp1\" title=\"2\u9805\u6f14\u7b97\u5b50\u3092\u4f7f\u3063\u305f3\u9805\u6f14\u7b97\u5b50\u98a8\u5b9f\u88c5 - tattyu&#39;s blog\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","blog_url":"https://tattyu.hatenablog.com/","width":"100%","image_url":null,"categories":["program","Lua"],"version":"1.0","type":"rich","provider_url":"https://hatena.blog","provider_name":"Hatena Blog","url":"https://tattyu.hatenablog.com/entry/20070821/p1","blog_title":"tattyu's blog"}