Golang创建bytes.Buffer数组的多读器

Question

I need Create MultiReader of slice []*bytes.Buffer
buffer_slice := ... (type []*bytes.Buffer)
When i write io.MultiReader(buffer_slice)

I get the error:
cannot use buffer_slice (type []*bytes.Buffer) as type io.Reader in argument to io.MultiReader: []*bytes.Buffer does not implement io.Reader (missing Read method).

But function signature MultiReader(readers ...Reader) Reader

I understand that the transmit array is meaningless, the actual question: besides the trivial cycle, there are no more options?

P.S. Sorry for my bad english.

Answer 1

Your slice should be type []io.Reader

b1 := &bytes.Buffer{}
b2 := &bytes.Buffer{}
buffers := []io.Reader{b1, b2}

multi := io.MultiReader(buffers...)