Go language Basics: In-depth understanding of struct embedded Inteface

This is a creation in Article, where the information may have evolved or changed.

An in-depth understanding of the anonymous interface used in the previous article: http://blog.csdn.net/uudou/article/details/52456133
For the use of struct embedded inteface, I am research long time only understand, here record my question:

1. How to better understand the anonymous interface

// 匿名接口可以被用作变量或者结构属性类型struct {    interface {        string    }}

The above man class can be expanded into

type gender interface {        GetGender() string    }type Man struct {    gender//}

The code is more understood than it is written.

2. What is the use of anonymous interface objects, and why should they be referenced?

    // 匿名接口对象的使用    varMan := Man{&Employee{        name:   "Nobody",        age:    20,        10000,        "Unknown",    }}

The reason is that the recipient of the implementation of the anonymous interface gender is a pointer, so this is the way to assign a value by reference.

3. Why can the initialization of the man class be initialized with employee?
We know that go has a rule that if we define a interface variable, then this variable can have any type of image that implements the interface. The employee class implements the gender interface, while the members of the man have a gender interface, so man can initialize with employee.

4. Re-fill a feature
The struct of the inline interface also satisfies the basics of the go language: the inheritance and overriding attributes mentioned in method

method继承和重写继承：如果 struct 中的一个匿名段实现了一个 method，那么包含这个匿名段的 struct 也能调用该 method。重写：如果 struct 中的一个匿名段实现了一个 method，包含这个匿名段的 struct 是可以重写匿名字段的方法的。

Eighth section structure and interface
embedded in Golang (embeded)