一般都是偽隨機函數，在一定範圍裏不重複很重要

所有跟帖： 

• Yes I know rand() creates 偽隨機數. -ppzcgg- ♀ (119 bytes) () 12/01/2006 postreply 13:42:43

• there is no proved real random generator algorithm -德州老外- ♂ (386 bytes) () 12/01/2006 postreply 14:48:42

• Why you two are so serious about this. I was just -ppzcgg- ♀ (87 bytes) () 12/01/2006 postreply 19:48:52