动态创建任何struct类型的数组，并对结构体字段赋值。

go_reflect_struct_interface.go

package main

import "reflect"
import "fmt"

type User struct {
	Name string
}

func main() {
	users := con([]User{})
	for _, u := range users {
		user := u.(User)
		fmt.Println(user)
	}
}
func con(data interface{}) (structs []interface{}) {
	typ := reflect.TypeOf(data).Elem()
	arr := reflect.New(reflect.TypeOf(data)).Elem()
	for i := 0; i < 5; i++ {
		v := reflect.New(typ).Elem()
		f := v.Field(0)
		f.SetString("test")
		arr = reflect.Append(arr, v)
	}
	structs = []interface{}{}
	for i := 0; i < arr.Len(); i++ {
		structs = append(structs, arr.Index(i).Interface())
	}
	return
}