http://www.xinasp.com/qesycn All of Qesy . You're welcome ! Sun, 12 Feb 2012 02:22:42 +0000 en hourly 1 http://wordpress.org/?v=3.3.1 http://www.xinasp.com/qesycn/?p=779 http://www.xinasp.com/qesycn/?p=779#comments Sun, 12 Feb 2012 02:22:42 +0000 Qesy http://www.xinasp.com/qesycn/?p=779 http://www.xinasp.com/qesycn/?feed=rss2&p=779 0 http://www.xinasp.com/qesycn/?p=777 http://www.xinasp.com/qesycn/?p=777#comments Thu, 09 Feb 2012 09:28:08 +0000 Qesy http://www.xinasp.com/qesycn/?p=777 http://www.xinasp.com/qesycn/?feed=rss2&p=777 0 http://www.xinasp.com/qesycn/?p=775 http://www.xinasp.com/qesycn/?p=775#comments Thu, 09 Feb 2012 09:11:06 +0000 Qesy http://www.xinasp.com/qesycn/?p=775 http://www.xinasp.com/qesycn/?feed=rss2&p=775 0 http://www.xinasp.com/qesycn/?p=773 http://www.xinasp.com/qesycn/?p=773#comments Thu, 09 Feb 2012 09:00:55 +0000 Qesy http://www.xinasp.com/qesycn/?p=773 http://www.xinasp.com/qesycn/?feed=rss2&p=773 0 http://www.xinasp.com/qesycn/?p=769 http://www.xinasp.com/qesycn/?p=769#comments Thu, 09 Feb 2012 07:36:52 +0000 Qesy http://www.xinasp.com/qesycn/?p=769 http://www.xinasp.com/qesycn/?feed=rss2&p=769 0 http://www.xinasp.com/qesycn/?p=757 http://www.xinasp.com/qesycn/?p=757#comments Thu, 09 Feb 2012 06:06:30 +0000 Qesy http://www.xinasp.com/qesycn/?p=757 is_atom(hello). true 83> is_atom(“hello”). false is_tuple 不是太了解，看一下例子 84> is_tuple({paris, {c, 30}}). true 85> is_tuple([paris, {c, 30}]). false 所有这些可以用于守卫。现在我们看看不能用于守卫的函数 atom_to_list 87> atom_to_list(hello). “hello” list_to_atom 88> list_to_atom(“goodbye”). goodbye integer_to_list [...]]]> http://www.xinasp.com/qesycn/?feed=rss2&p=757 0 http://www.xinasp.com/qesycn/?p=755 http://www.xinasp.com/qesycn/?p=755#comments Thu, 09 Feb 2012 05:35:07 +0000 Qesy http://www.xinasp.com/qesycn/?p=755 Result_so_far的时候，使用Head代替 Result_so_far。在->之前的特定字符，表示－－我们只会在这个特定的条件满足的时候， 才会执行函数的这个部分。我们叫这种类型的测试，叫守卫(guard)。如果守卫不是‘真’ (我们称它为守卫失败)，我们会尝试执行函数的下一个部分。这种情况下如果Head不大于 - 14 - Result_so_far的话，它必定是小于等于它，所以我们在下一部分中，不需要再使用守卫。 一些守卫中常见的操作符有< 小于，> 大于，== 等于，>= 大于等于，=< 小于等于，/= [...]]]> http://www.xinasp.com/qesycn/?feed=rss2&p=755 0 http://www.xinasp.com/qesycn/?p=752 http://www.xinasp.com/qesycn/?p=752#comments Wed, 08 Feb 2012 11:49:04 +0000 Qesy http://www.xinasp.com/qesycn/?p=752 http://www.xinasp.com/qesycn/?feed=rss2&p=752 0 http://www.xinasp.com/qesycn/?p=750 http://www.xinasp.com/qesycn/?p=750#comments Wed, 08 Feb 2012 11:28:47 +0000 Qesy http://www.xinasp.com/qesycn/?p=750 http://www.xinasp.com/qesycn/?feed=rss2&p=750 0 http://www.xinasp.com/qesycn/?p=746 http://www.xinasp.com/qesycn/?p=746#comments Fri, 13 Jan 2012 02:21:55 +0000 Qesy http://www.xinasp.com/qesycn/?p=746 http://www.xinasp.com/qesycn/?feed=rss2&p=746 0