如何访问动态生成的 Go 模板变量的值

如何解决如何访问动态生成的 Go 模板变量的值

对 Go 和使用范围非常陌生。我正在尝试使用范围中的值生成变量名称，并希望获取动态生成的变量的值。这是我的代码

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当我运行上面的代码时，我得到以下

package main

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

type EnvironmentCluster[] struct {
    cluster string
    env     string
}

const tmpl = `
{{$application_configuration := "generic config"}}
{{$application_development_configuration := "dev_config"}}
{{$application_stage_configuration := "stage_config"}}

{{range $cluster,$env := .}}
    {{$config := (printf "application_%s_configuration" $cluster) }}
    Cluster is {{$cluster}},env is {{$env}},config is {{$config}}
{{end}}
`

func main() {
    clusterEnv := map[string]string{
        "development": "dev","stage": "prod",}

        t := template.New("EnvironmentCluster template")

        t,err := t.Parse(tmpl)
        if err != nil {
                log.Fatal("Parse: ",err)
                return
        }

        err = t.Execute(os.Stdout,clusterEnv)
        if err != nil {
                log.Fatal("Execute: ",err)
                return
        }
}

但我的期望是看到 Cluster is development,env is dev,config is application_development_configuration Cluster is stage,env is prod,config is application_stage_configuration 的实际值是这样打印的 -

config

任何帮助/指示？寻找在 go-templates 中访问要在范围内使用的范围外变量的方法。