Golang-函数“ Execute”在哪里写入流？

i´m beginner in Go and i dont understand where is the call to write the data "home.html" in the stream of the function Execute.The http.ResponseWriter is the writter thats clear but in the function Execute i cant see anything like write .. fmt.Fprint.. i only see the recursion of Execute

http://golang.org/src/pkg/html/template/template.go?s=1245:1315#L40

//my Function
func homeHandler(c http.ResponseWriter, req *http.Request) {

var homeTempl = template.Must(template.ParseFiles("home.html"))

//here is my misunderstanding
homeTempl.Execute(c, req.Host)
//Thats consistent 
fmt.Fprint(c, "hallo")

}

That's not a recursive call. It is calling Template.Execute in the "text/template" package (not Template.Execute in "html/template"). That is also where you will find the code that actually writes bytes on the Writer.

http://golang.org/src/pkg/text/template/exec.go?s=2630:2700#L95