Go language struct

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

First, the definition of struct structure:

Type person struct {name stringage  int}

This defines the person structure, name is the string type name, and age is an int type.

Second, declare a struct variable:

var p person

Three, the assignment value:

There are three ways to do this, respectively:

1, directly assigned value

P.name = "Xiaoming" P.age = 12

2. Initialize values in sequence

Tom: = person{"Tom", 20}

3, through the way of field:value initialization, so that the order can be arbitrary

John: = person{age:21, Name: "John"}

Iv. Anonymous fields for structs

Go support provides only field types, and does not provide a way to declare field names. That is, an anonymous field, also called an embedded field. (Can be understood by inheritance in Java)

When an anonymous field is a struct (or other custom type), all the fields owned by the struct are implicitly introduced into the currently defined struct.

As an example:

Type Human struct{    name string age    int}type Student struct{    Human//anonymous field, then Student has all the fields    of Human Score Int}func Main () {    var xiaoming = student{human{"Xiaoming", +}, 98}    FMT. Println (xiaoming.    Human.name); Fmt. Println (xiaoming.    Human.age); Fmt. Println (Xiaoming.score);}