Supplier       ()    -> x
Consumer       x     -> ()
BiConsumer     x, y  -> ()
Callable       ()    -> x throws ex
Runnable       ()    -> () (呼叫线程)
Function       x     -> y
BiFunction     x,y   -> z
Predicate      x     -> boolean
UnaryOperator  x1    -> x2
BinaryOperator x1,x2 -> x3