如何在Golang中将模板输出写入文件？

如何解决如何在Golang中将模板输出写入文件？？

使用数组作为第二个参数，而不是模板本身。

package main

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

func main() {
        t := template.Must(template.New("").Parse(`{{- range .}}{{.}}:
        echo "from {{.}}"
{{end}}
`))
        t.Execute(os.Stdout, []string{"app1", "app2", "app3"})

        f, err := os.Create("./myfile")
        if err != nil {
                log.Println("create file: ", err)
                return
        }
        err = t.Execute(f, []string{"app1", "app2", "app3"})
        if err != nil {
                log.Print("execute: ", err)
                return
        }
        f.Close()
}

app1:
    echo "from app1"
app2:
    echo "from app2"
app3:
    echo "from app3"

myfile

app1:
    echo "from app1"
app2:
    echo "from app2"
app3:
    echo "from app3"

解决方法

package main

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

func main() {
    t := template.Must(template.New("").Parse(`{{- range .}}{{.}}:
    echo "from {{.}}"
{{end}}
`))
    t.Execute(os.Stdout,[]string{"app1","app2","app3"})

    f,err := os.Create("./myfile")
    if err != nil {
        log.Println("create file: ",err)
        return
    }
    err = t.Execute(f,t)
    if err != nil {
        log.Print("execute: ",err)
        return
    }
    f.Close()
}

execute: template: :1:10: executing "" at <.>: range can't iterate over {0xc00000e520 0xc00001e400 0xc0000b3000 0xc00009e0a2}