一、接口的组合
示例1:
type Retriever interface {
Get(url string) string
}
type Poster interface {
Post (Url string, form map[string]string) string
}
type RetrieverPoster interface {
Retriever
Poster
}
示例2:
type ReadWriter interface {
Reader
Writer
}
二、常用的系统接口
1.Stringer
2.Reader/Writer