package main

import (

  "html/template"

  "log"

  "net/http"

)

type User struct {

  Name string

  Email string

}

func handler(w http.ResponseWriter, r *http.Request) {

  tmpl := `

欢迎：{{.Name}}

邮箱：{{.Email}}

  tpl, err := template.New("user").Parse(tmpl)

  if err != nil {

    log.Fatal(err)

  }

  user := User{Name: "张三", Email: "zhangsan@example.com"}

  tpl.Execute(w, user)

}

func main() {

  http.HandleFunc("/", handler)

  http.ListenAndServe(":8080", nil)

}

{{.Title}}

  {{range .Items}}

  {{end}}

tpl, err := template.ParseFiles("templates/index.html")

if err != nil {

  log.Fatal(err)

}

data := map[string]interface{}{

  "Title": "我的页面",

  "Items": []string{"条目1", "条目2", "条目3"},

}

tpl.Execute(w, data)

{{if .LoggedIn}}

欢迎回来！

{{else}}

  请登录

{{end}}

data := map[string]interface{}{

  "LoggedIn": true,

}

var templates = template.Must(template.ParseGlob("templates/*.html"))

func renderTemplate(w http.ResponseWriter, name string, data interface{}) {

  err := templates.ExecuteTemplate(w, name, data)

  if err != nil {

    http.Error(w, "模板错误", http.StatusInternalServerError)

  }

}