Managing a Linq to SQL Datacontext in a WCF service using a DataContextFactory

I\'ve been using Rick Strahl\'s DataContextFactory code (Linq to SQL DataContext Lifetime Management) in a data layer consumed by an ASP.Net application. It works great because the current datacontext

除了张亮，帮助和照顾过王导的人都被黑了，为什么？张亮怎么走到今天的？？