2. import (
    3.     "encoding/json"
    4.     "fmt"
    5. )
    7. type Student struct {
    8.     ID     int
    9.     Gender string
    10.     Name   string //私有属性不能被json包访问
    11.     Sno    string
    12. }
    14. func main() {
    16.     var s1 = Student{
    17.         ID:     12,
    18.         Gender: "男",
    19.         Name:   "李四",
    20.         Sno:    "s0001",
    21.     }
    22.     fmt.Printf("%#v\n", s1) //main.Student{ID:12, Gender:"男", Name:"李四", Sno:"s0001"}
    24.     jsonByte, _ := json.Marshal(s1)
    25.     jsonStr := string(jsonByte)
    26.     fmt.Printf("%v", jsonStr) //{"ID":12,"Gender":"男","Name":"李四","Sno":"s0001"}
    27. }
    1. package main
    3. import (
    4.     "encoding/json"
    5.     "fmt"
    6. )
    8. type Student struct {
    9.     ID     int
    10.     Gender string
    11.     Name   string //私有属性不能被json包访问
    12.     Sno    string
    13. }
    15. func main() {
    17.     //json字符串
    18.     var str = `{"ID":12,"Gender":"男","Name":"李四","Sno":"s0001"}`
    19.     var s1 Student
    20.     err := json.Unmarshal([]byte(str), &s1)
    22.     if err != nil {
    23.         fmt.Println(err)
    24.     }
    25.     fmt.Printf("%#v\n", s1)
    26.     fmt.Println(s1.Name)
    28. }
    1. package main
    3. import (
    4.     "encoding/json"
    5.     "fmt"
    6. )
    8. //结构体标签
    10. type Student struct {
    11.     Id     int    `json:"id"`
    12.     Gender string `json:"gender"`
    13.     Name   string `json:"name"` //私有属性不能被json包访问
    14.     Sno    string `json:"sno"`
    15. }
    17. func main() {
    18.     var s1 = Student{
    19.         Id:     12,
    20.         Gender: "男",
    21.         Name:   "李四",
    22.         Sno:    "s0001",
    23.     }
    24.     fmt.Printf("%#v\n", s1) //main.Student{Id:12, Gender:"男", Name:"李四", Sno:"s0001"}
    26.     jsonByte, _ := json.Marshal(s1)
    27.     jsonStr := string(jsonByte)
    28.     fmt.Printf("%v", jsonStr) //{"id":12,"gender":"男","name":"李四","sno":"s0001"}
    29. }
    1. package main
    3. import (
    4.     "encoding/json"
    5.     "fmt"
    6. )
    8. //Student 学生
    9. type Student struct {
    10.     Id     int
    11.     Gender string
    12.     Name   string
    13. }
    15. //Class 班级
    16. type Class struct {
    17.     Title    string
    18.     Students []Student
    19. }
    21. func main() {
    22.     c := Class{
    23.         Title:    "001班",
    24.         Students: make([]Student, 0),
    25.     }
    27.     for i := 1; i <= 10; i++ {
    28.         s := Student{
    29.             Id:     i,
    30.             Gender: "男",
    31.             Name:   fmt.Sprintf("stu_%v", i),
    32.         }
    33.         c.Students = append(c.Students, s)
    34.     }
    36.     // fmt.Println(c)
    38.     strByte, err := json.Marshal(c)
    40.     if err != nil {
    41.         fmt.Println(err)
    42.     } else {
    44.         strJson := string(strByte)
    45.         fmt.Println(strJson)
    46.     }
    47. }
    1. package main
    3. import (
    4.     "encoding/json"
    5.     "fmt"
    6. )
    8. //Student 学生
    9. type Student struct {
    10.     ID     int
    11.     Gender string
    12.     Name   string
    13. }
    15. //Class 班级
    16. type Class struct {
    17.     Title    string
    18.     Students []Student
    19. }
    21. func main() {
    23.     str := `{"Title":"001班","Students":[{"Id":1,"Gender":"男","Name":"stu_1"},{"Id":2,"Gender":"男","Name":"stu_2"},{"Id":3,"Gender":"男","Name":"stu_3"},{"Id":4,"Gender":"男","Name":"stu_4"},{"Id":5,"Gender":"男","Name":"stu_5"},{"Id":6,"Gender":"男","Name":"stu_6"},{"Id":7,"Gender":"男","Name":"stu_7"},{"Id":8,"Gender":"男","Name":"stu_8"},{"Id":9,"Gender":"男","Name":"stu_9"},{"Id":10,"Gender":"男","Name":"stu_10"}]}`
    25.     var c = &Class{}
    26.     err := json.Unmarshal([]byte(str), c)
    27.     if err != nil {
    28.         fmt.Println(err)
    29.     } else {
    30.         fmt.Printf("%#v\n", c)
    32.         fmt.Printf("%v", c.Title)
    33.     }
    34. }