be famous for 与be famous as 两者有什么区别,他们的中文解释各是什么?

be famous for; be famous as
1.be famous for因……而著名
Beijing is famous for many places of interest.北京以许多名胜古迹而著称.
2.be famous as 作为……是出名的
He is famous as a writer.作为一个作家他是有名气的.