has been said 和it is said有啥区别我知道一个完成时一个一般现在时 两者都是据说的意思

it
has
been
said
by
YY
that
xx
is
...据YY说XX是被这么评价/这么说的...
it
is
said
与
has
been
said
的区别
[我理解中]除了完成时/现在时的话区别是在于语态吧，has
been是被动语态，is
said是主动。

it
has
been
said
...的意思是：已被称为...,是完成时态；
而it
is
said...的意思是：被称为...,是一般现在时态。

扩展阅读：have been asked ... have been killed ... from what has been said ... have been settled ... as has been well said ... learning curve has been ... has been around ... has been steep ... has been shown ...