gistfile1.txt

package main

import (
	"bytes"
	"html/template"
	"log"
)

type Instance struct {
	Name   string
	Age    int
	Gender string
}

func main() {
	ins := Instance{
		Name: "v2ex",
	}
	log.Println(Render_("http.tmpl", "templates/http.tmpl", ins))
}

func Render_(tmpName, tmp string, ins Instance) []byte {
	// tmp 为已定义模板的路径 如 "templates/http.tmpl"
	tpl, err := template.ParseFiles(tmp)

	if err != nil {
		log.Fatal(err)
	}

	data := ins
	var buf bytes.Buffer
	if err := tpl.ExecuteTemplate(&buf, tmpName, data); err != nil {
		log.Fatal(err)
	}
	return []byte(buf.String())
	//fmt.Println(buf.String())

}