exported function xxx should have comment or be unexported

exported function xxx should have comment or be unexported。

0x01 解决

https://golang.org/s/style 在这个页面中有提到

Comment SentencesSee https://golang.org/doc/effective_go.html#commentary. Comments documenting declarations should be full sentences, even if that seems a little redundant. This approach makes them format well when extracted into godoc documentation. Comments should begin with the name of the thing being described and end in a period:

记录声明的注释应该是完整的句子，即使这看起来有点多余。这种方法使它们在提取到 godoc 文档时格式良好。注释应以所述物品的名称开始，并以句号结束:

// Request represents a request to run a command.
type Request struct { ...
// Encode writes the JSON encoding of req to w.
func Encode(w io.Writer, req *Request) { ...

正是如此，golint 才会抛出这条警告，声明你写的代码不符合规范。

符合规范的修改：

在方法调用中，能看到注释信息：