Golang中未定义的地图元素

Question

由于某种原因，我收到以下错误./execTest.go:24: template.datacenter undefined (type map[string]string has no field or method datacenter)./execTest.go:25: template.datacenter undefined (type map[string]string has no field or method datacenter)这是我的 Go 代码package mainimport (    "fmt")var template map[string]stringfunc main() {    template := map[string]string{        "cluster":    "",        "datacenter": "The_Datacenter",        "host":       "",        "password":   "",        "username":   "",        "vm_name":    "",    }    args := []string{        "--acceptAllEulas",        "--compress=9",    }    if template.datacenter != "" {        args = append(args, fmt.Sprintf("--datacenter=%s", template.datacenter))    }    fmt.Println(template)}