1. type关键字
- 定义类型别名
type myInt = int
var a myInt = 1
var b int = 2
fmt.Println(a + b)
-
类型定义
-
定义接口
-
定义结构体
-
类型判断
2. 结构体
- 定义结构体
type person struct {
name string
age int
address string
height float32
}
- 赋值
func main() {
// 赋值方式1
p1 := person{"tom", 18, "go", 1.80}
p1.name = "boby"
// 复制方式2
p2 := person{name: "tom", age: 18, address: "go", height: 1.80}
}
- 取值
fmt.Println(p1.name)
fmt.Println(p2.name)
2.匿名结构体
func main() {
address := struct {
province string
city string
address string
}{
"省份",
"城市",
"地址",
}
fmt.Println(address.city)
}
3.结构体嵌套
- 定义
type myAddress struct {
province string
city string
address string
}
type person struct {
name string
age int
address myAddress
height float32
}
- 赋值
func main() {
p1 := person{
name: "tom",
age: 18,
address: myAddress{
province: "省份",
city: "城市",
address: "地址",
},
height: 1.80,
}
p1.address.city = "城市1"
fmt.Println(p1)
}
- 取值
fmt.Println(p1.address.city)
4. 结构体方法
// 结构体
type myAddress struct {
province string
city string
address string
}
// 附在结构体上的方法,(方法名之前的括号)
func (ma myAddress) myPrint() {
fmt.Println(ma.province, ma.city, ma.address)
}
func main() {
my := myAddress{"省份", "城市", "地址"}
my.myPrint()
}
标签:city,p1,string,fmt,Println,address,Go,结构
From: https://www.cnblogs.com/forlive/p/17211706.html