go从接口等于指针转换成string，（重要）

func main() {
   //var s string ="tess"
   //var ss *string = &s

   var i interface{} = &ssss{"test"}
   fmt.Println((i))
   i=100
   fmt.Println((i))
   fmt.Println((*i))

# command-line-arguments
.\test17.go:23:14: invalid indirect of i (type interface {})

func Itest(out interface{}) string {
   var res string

   newValue, _ := json.Marshal(out)
   res = string(newValue)

   return res


}

func main() {
   var ss string ="fdsfsdfsd"
   fmt.Println(Itest(&ss))




}

"fdsfsdfsd"

进程 已完成，退出代码为 0

func main() {
   var ss string ="fdsfsdfsd"
   fmt.Println(Itest(&ss))




}

var iii interface{}

fmt.Printf("%T\n",iii)
//<nil>

 interface {} 默认类型<nil>

使用   https://github.com/duke-git/lancet/blob/main/README_zh-CN.md