对于需要用asp.net 字母,随机数字,随机字母+数字生成随机码的朋友用的到

代码如下:using System; using System.Data; using System.Configuration; using System.Web; using System.Web.Security; using System.Web.UI; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.Web.UI.HtmlControls; using Sys