{"description":"\u3053\u3093\u306a\u611f\u3058\uff1f 12345679 * 9 = 111111111\u3053\u306e\u5024\u3063\u3066\u306a\u3093\u3067 8 \u304c\u6d88\u3048\u305f\u3093\u3060\u308d\u3046\u3068\u601d\u3063\u3066\u3001\u8272\u3005 1111... \u3068\u306a\u308b\u6570\u3092\u5272\u3063\u3066\u307f\u305f\u308a\u3057\u3066\u305f\u3089\u3001\u6b21\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u3067 12345679 \u3063\u3066\u3044\u3046\u6570\u5b57\u3092\u767a\u898b\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u305f\u3002 var n = 0; for (var i = 1; i <= 10; i ++) { n = n * 10 + i; console.log(n); } \u3053\u3046\u3084\u3063\u3066\u3044\u304f\u3068 i \u304c 10 \u306e\u3068\u304d\u306e n \u306e\u5024\u3001\u3064\u307e\u308a\u3001 123456789 \u306e\u6b21\u304c 1234567900 \u306b\u306a\u308b \u3061\u306a\u307f\u306b\u3001\u4e0a\u306e for \u6587\u306e\u4e2d\u3067 n * 9 + i + 1 \u3092\u8a08\u7b97\u3059\u308b\u3068\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u2026","image_url":null,"categories":["\u4eba\u751f"],"provider_name":"Hatena Blog","height":"190","version":"1.0","url":"https://amachang.hatenablog.com/entry/20070925/1190753733","author_url":"https://blog.hatena.ne.jp/amachang/","author_name":"amachang","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Famachang.hatenablog.com%2Fentry%2F20070925%2F1190753733\" title=\" 8 \u3082\u4e0d\u601d\u8b70\u3060\u3051\u3069 12345679 (8\u306e\u306a\u3044\u4e26\u3073)\u3082\u4e0d\u601d\u8b70\u3060\u3088\u306d\u30fc\u3002 - IT\u6226\u8a18\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","title":" 8 \u3082\u4e0d\u601d\u8b70\u3060\u3051\u3069 12345679 (8\u306e\u306a\u3044\u4e26\u3073)\u3082\u4e0d\u601d\u8b70\u3060\u3088\u306d\u30fc\u3002","published":"2007-09-25 05:55:33","width":"100%","provider_url":"https://hatena.blog","type":"rich","blog_url":"https://amachang.hatenablog.com/","blog_title":"IT\u6226\u8a18"}