1.取结构体的地址实例化
p3 := &person{}
fmt.Printf("%T\n", p3) //*main.person
fmt.Printf("p3=%#v\n", p3) //p3=&main.person{name:"", city:"", age:0}
p3.name = "博客"
p3.age = 30
p3.city = "成都"
fmt.Printf("p3=%#v\n", p3) //p3=&main.person{name:"博客", city:"成都", age:30}
2.结构体初始化
type person struct {
name string
city string
age int8
}
func main() {
var p4 person
fmt.Printf("p4=%#v\n", p4) //p4=main.person{name:"", city:"", age:0}
}
3.使用键值对初始化
//使用键值对对结构体进行初始化时,键对应结构体的字段,值对应该字段的初始值。
p5 := person{
name: "pprof.cn",
city: "北京",
age: 18,
}
fmt.Printf("p5=%#v\n", p5) //p5=main.person{name:"pprof.cn", city:"北京", age:18}
4.使用值的列表初始化
//初始化结构体的时候可以简写,也就是初始化的时候不写键,直接写值:
p8 := &person{
"pprof.cn",
"北京",
18,
}
fmt.Printf("p8=%#v\n", p8) //p8=&main.person{name:"pprof.cn", city:"北京", age:18}