how are you ?有哪两种形式

常用的简略形式就是how are you ?完整形式为how are you going?另外问好也可用这个关于how的句子How do you do？对方回答还是How do you do？

How are you?
How are you doing?

How are you?
How are you doing?
另:还可以说 What's up?

How are you going
How about you