interface作为struct field，谈谈golang结构体中的匿名接口 - Go语言中文网 - Golang中文社区 https://studygolang.com/articles/19729
the-way-to-go_ZH_CN/10.5.md at master · unknwon/the-way-to-go_ZH_CN https://github.com/unknwon/the-way-to-go_ZH_CN/blob/master/eBook/10.5.md
匿名字段和内嵌结构体
go - Meaning of a struct with embedded anonymous interface? - Stack Overflow https://stackoverflow.com/questions/24537443/meaning-of-a-struct-with-embedded-anonymous-interface
golang 结构体中的匿名接口 - Morya - 博客园 https://www.cnblogs.com/morya/p/9251889.html
go - Meaning of a struct with embedded anonymous interface? - Stack Overflow https://stackoverflow.com/questions/24537443/meaning-of-a-struct-with-embedded-anonymous-interface