no matter whether = whether…or?

前者：不管是否

It is no matter whether he comes or not.

不管他来不来都无所谓。

后者：不是……就是

另：楼上的是

no matter whether 和 whether ... or not

no matter whether [英汉航海大词典]
adv.不论...是否
no matter whether [英汉化学大词典]
无论,不管是

whether or [简明英汉词典]
是...还是

yes
有句子可证
I will follow you forever no matter whether you have money.
=I will follow you forever whether you have money or not.

no