摘要：
活跃度这个问题如果深追究，应该是个不算小的范畴，可以把他理解成用户对一网站或者一个群组的喜欢程度。 阅读全文
摘要：
一个函数搞定随机码的生成。代码Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/--stringsResult=string.Empty;string[]skey=newstring[]{"q","z","a","w","s","x","e","d","c"... 阅读全文