{"blog_title":"\u7406\u7cfb\u5b66\u751f\u65e5\u8a18","type":"rich","url":"https://kiririmode.hatenablog.jp/entry/20080713/p3","blog_url":"https://kiririmode.hatenablog.jp/","author_url":"https://blog.hatena.ne.jp/kiririmode/","provider_url":"https://hatena.blog","title":"\u554f\u984c3-42 (3.4.1  The Nature of Time in Concurrent Systems)","published":"2008-07-13 00:00:02","image_url":null,"html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fkiririmode.hatenablog.jp%2Fentry%2F20080713%2Fp3\" title=\"\u554f\u984c3-42 (3.4.1  The Nature of Time in Concurrent Systems) - \u7406\u7cfb\u5b66\u751f\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>","width":"100%","height":"190","provider_name":"Hatena Blog","description":"\u3053\u308c\u304c make-account \u306a\u308f\u3051\u3060\u3051\u3069\uff0c'withdraw \u3068\u304b 'deposit \u3068\u304b\u306e\u30e1\u30c3\u30bb\u30fc\u30b8\u304c\u9001\u3089\u308c\u3066\u304f\u308b\u6bce\u306b\uff0c\u6bce\u56de\u76f4\u5217\u5316\u3055\u308c\u305f\u95a2\u6570\u3092\u751f\u6210\u3059\u308b\u3088\u3046\u306b\u306a\u3063\u3066\u308b\uff0e (define (make-account balance) (define (withdraw amount) (if (>= balance amount) (begin (set! balance (- balance amount)) balance) \"Insufficient funds\")) (define (deposit amount) (set! balance (+ balance amount))\u2026","author_name":"kiririmode","categories":["SICP"],"version":"1.0"}