我是新來的。我一直在搜索文檔。在下面的游樂場代碼中，它正在屏幕上渲染和打印它。我希望將呈現(xiàn)的文本存儲在字符串中，以便我可以從函數(shù)中返回它。package mainimport (    "os"    "text/template")type Person struct {    Name string //exported field since it begins with a capital letter}func main() {    t := template.New("sammple") //create a new template with some name    t, _ = t.Parse("hello {{.Name}}!") //parse some content and generate a template, which is an internal representation    p := Person{Name:"Mary"} //define an instance with required field    t.Execute(os.Stdout, p) //merge template ‘t’ with content of ‘p’}https://play.golang.org/p/-qIGNSfJwEX怎么做 ？