反射获取类型，并且动态创建

main.go

package main

import (
    "fmt"
    "reflect"
)

type My struct {
    Name string
    Id   int
}

func main() {
    my := &My{}
    myType := reflect.TypeOf(my)
    slice := reflect.MakeSlice(reflect.SliceOf(myType), 10, 10).Interface()
    p := slice.([]*My)

    fmt.Printf("%T %d %d\n", p, len(p), cap(p))
}