Golang创建bytes.Buffer数组的多重读取器

Question

我需要创建切片[]*bytes.Buffer的MultiReader buffer_slice := ... (type []*bytes.Buffer)
当我写io.MultiReader(buffer_slice)

时

我收到错误：
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).

但功能签名MultiReader(readers ...Reader) Reader

据我所知，发射阵列毫无意义，实际问题是：除了琐碎的循环外，还有其他选择吗？

P.S。抱歉我的英语不好。

Answer 1

您的切片应为[]io.Reader

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

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