47 lines
1.1 KiB
Go
47 lines
1.1 KiB
Go
package main
|
|
|
|
import (
|
|
"fmt"
|
|
"reflect"
|
|
)
|
|
|
|
type student struct {
|
|
Name string `json:"name"`
|
|
Score int `json:"score"`
|
|
}
|
|
|
|
var stu1 = student{
|
|
Name: "小王子",
|
|
Score: 90,
|
|
}
|
|
|
|
func main() {
|
|
|
|
t := reflect.TypeOf(stu1)
|
|
|
|
fmt.Println(t.Name(), t.Kind()) // student struct
|
|
fmt.Println(t.NumField()) //2
|
|
|
|
// 通过for循环遍历结构体的所有字段信息
|
|
for i := 0; i < t.NumField(); i++ {
|
|
field := t.Field(i)
|
|
fmt.Println(field)
|
|
fmt.Printf("name:%s index:%d type:%v json tag:%v\n", field.Name, field.Index, field.Type, field.Tag.Get("json"))
|
|
}
|
|
|
|
// 通过字段名获取指定结构体字段信息
|
|
if scoreField, ok := t.FieldByName("Score"); ok {
|
|
fmt.Printf("name:%s index:%d type:%v json tag:%v\n", scoreField.Name, scoreField.Index, scoreField.Type, scoreField.Tag.Get("json"))
|
|
}
|
|
fmt.Println("======================ValueOf==================")
|
|
v := reflect.ValueOf(stu1)
|
|
fmt.Println(v.NumField()) //2
|
|
for i := 0; i < v.NumField(); i++ {
|
|
field2 := v.Field(i)
|
|
fmt.Println(field2)
|
|
} //遍历值
|
|
wangzi := v.FieldByName("Name")
|
|
fmt.Println(wangzi)
|
|
|
|
}
|