golang 入门之struct继承，嵌套

?

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

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

?

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100

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)) }