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golang 入门之struct继承,嵌套
jocongmin · · 12889 次点击 · · 开始浏览这是一个创建于 的文章,其中的信息可能已经有所发展或是发生改变。
package main
import "fmt"
type Jocongmin struct{
Name string
Home string
Want string
}
func (j *Jocongmin) SayName() string{ //这里定义的方法是拓展方法,是对Jocongmin这个struct的继承,也就是struct多了一个Say..方法,可以通过Jocongmin这个struct实例来调用
return "我的名字是"+j.Name
}
func (j *Jocongmin) SayHome() string{
return "我的家在"+j.Home
}
func (j *Jocongmin) SayWant() string{
return "我的喜爱是"+j.Want
}
func main(){
var jocongmin Jocongmin
jocongmin.Name="周聪明"
jocongmin.Home="福建省"
jocongmin.Want="money"
fmt.Println(jocongmin.SayName()) //调用了struct的方法
fmt.Println(jocongmin.SayHome())
fmt.Println(jocongmin.SayWant())
}
2.struct的嵌套
package main
import "encoding/json"
import "fmt"
import "strconv"
import (
"github.com/drone/routes"
"net/http"
)
type ResInfo struct { //定义一个struct,然后这个struct里面有哪些子对象
Data YearDataStruct
Msg string
}
type YearDataStruct struct {
MouthAll []MouthStruct //定义一个类型为数组的对象,然后这个数组的元素类型为某种struct
Sum DetailStruct
Average DetailStruct
Quarter []QuarterStruct
}
type DetailStruct struct {
One int
Two int
Three int
}
type QuarterStruct struct {
DetailStruct //可以嵌套复合其他类型的struct,这样就继承下了其他struct的子对象
QuarterNum int
}
type MouthStruct struct {
Mouth int
PartmentItem []ItemArrStruct
}
type ItemArrStruct struct {
PartMent string
DetailStruct
}
func cross(w http.ResponseWriter) {
w.Header().Set("Access-Control-Allow-Origin", "*") //允许访问所有域
w.Header().Add("Access-Control-Allow-Headers", "Content-Type") //header的类型
w.Header().Set("content-type", "application/json") //返回数据格式是json
}
func main() {
fmt.Println("正在启动WEB服务...")
var mux *routes.RouteMux = routes.New()
mux.Get("/test", DataSend)
//http.Handle("/", mux)
http.ListenAndServe(":8088", mux)
fmt.Println("服务已停止")
}
func DataSend(w http.ResponseWriter, r *http.Request) {
var data YearDataStruct
for i := 1; i < 13; i++ {
var partMent []ItemArrStruct
for t := 1; t < 4; t++ {
partMent = append(partMent, ItemArrStruct{
PartMent: "" + strconv.Itoa(t) + "abc",
DetailStruct: DetailStruct{ //继承其他struct的子对象的赋值方法是这样的,one two 之类的和partment是同一等级
One: 45,
Two: 23,
Three: 3432,
},
})
}
data.MouthAll = append(data.MouthAll, MouthStruct{
Mouth: i,
PartmentItem: partMent,
})
}
for i := 1; i <= 4; i++ {
data.Quarter = append(data.Quarter, QuarterStruct{
DetailStruct: DetailStruct{
One: 4324,
Two: 23423,
Three: 4324234,
},
QuarterNum: i,
})
}
data.Sum = DetailStruct{
One: 4546,
Two: 454,
Three: 454,
}
data.Average = DetailStruct{
One: 4546,
Two: 454,
Three: 465465,
}
var res ResInfo
res.Data = data
res.Msg = "right"
resJson, _ := json.Marshal(res)
fmt.Fprintln(w, string(resJson))
}
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package main
import "fmt"
type Jocongmin struct{
Name string
Home string
Want string
}
func (j *Jocongmin) SayName() string{ //这里定义的方法是拓展方法,是对Jocongmin这个struct的继承,也就是struct多了一个Say..方法,可以通过Jocongmin这个struct实例来调用
return "我的名字是"+j.Name
}
func (j *Jocongmin) SayHome() string{
return "我的家在"+j.Home
}
func (j *Jocongmin) SayWant() string{
return "我的喜爱是"+j.Want
}
func main(){
var jocongmin Jocongmin
jocongmin.Name="周聪明"
jocongmin.Home="福建省"
jocongmin.Want="money"
fmt.Println(jocongmin.SayName()) //调用了struct的方法
fmt.Println(jocongmin.SayHome())
fmt.Println(jocongmin.SayWant())
}
2.struct的嵌套
package main
import "encoding/json"
import "fmt"
import "strconv"
import (
"github.com/drone/routes"
"net/http"
)
type ResInfo struct { //定义一个struct,然后这个struct里面有哪些子对象
Data YearDataStruct
Msg string
}
type YearDataStruct struct {
MouthAll []MouthStruct //定义一个类型为数组的对象,然后这个数组的元素类型为某种struct
Sum DetailStruct
Average DetailStruct
Quarter []QuarterStruct
}
type DetailStruct struct {
One int
Two int
Three int
}
type QuarterStruct struct {
DetailStruct //可以嵌套复合其他类型的struct,这样就继承下了其他struct的子对象
QuarterNum int
}
type MouthStruct struct {
Mouth int
PartmentItem []ItemArrStruct
}
type ItemArrStruct struct {
PartMent string
DetailStruct
}
func cross(w http.ResponseWriter) {
w.Header().Set("Access-Control-Allow-Origin", "*") //允许访问所有域
w.Header().Add("Access-Control-Allow-Headers", "Content-Type") //header的类型
w.Header().Set("content-type", "application/json") //返回数据格式是json
}
func main() {
fmt.Println("正在启动WEB服务...")
var mux *routes.RouteMux = routes.New()
mux.Get("/test", DataSend)
//http.Handle("/", mux)
http.ListenAndServe(":8088", mux)
fmt.Println("服务已停止")
}
func DataSend(w http.ResponseWriter, r *http.Request) {
var data YearDataStruct
for i := 1; i < 13; i++ {
var partMent []ItemArrStruct
for t := 1; t < 4; t++ {
partMent = append(partMent, ItemArrStruct{
PartMent: "" + strconv.Itoa(t) + "abc",
DetailStruct: DetailStruct{ //继承其他struct的子对象的赋值方法是这样的,one two 之类的和partment是同一等级
One: 45,
Two: 23,
Three: 3432,
},
})
}
data.MouthAll = append(data.MouthAll, MouthStruct{
Mouth: i,
PartmentItem: partMent,
})
}
for i := 1; i <= 4; i++ {
data.Quarter = append(data.Quarter, QuarterStruct{
DetailStruct: DetailStruct{
One: 4324,
Two: 23423,
Three: 4324234,
},
QuarterNum: i,
})
}
data.Sum = DetailStruct{
One: 4546,
Two: 454,
Three: 454,
}
data.Average = DetailStruct{
One: 4546,
Two: 454,
Three: 465465,
}
var res ResInfo
res.Data = data
res.Msg = "right"
resJson, _ := json.Marshal(res)
fmt.Fprintln(w, string(resJson))
}