template.go
func Execute(template, startTag, endTag string, w io.Writer, m map[string]interface{}) (int64, error) {
	return ExecuteFunc(template, startTag, endTag, w, func(w io.Writer, tag string) (int, error) { return stdTagFunc(w, tag, m) })
}
func Execute(template, startTag, endTag string, w io.Writer, m map[string]interface{}) (int64, error) {
	return ExecuteFunc(template, startTag, endTag, w, func(w io.Writer, tag string) (int, error) { return stdTagFunc(w, tag, m) })
}
func Execute ( template , startTag , endTag string , w io . Writer , m map [ string ] interface { } ) ( int64 , error ) { return ExecuteFunc ( template , startTag , endTag , w , func ( w io . Writer , tag string ) ( int , error ) { return stdTagFunc ( w , tag , m ) } ) }
// Execute substitutes template tags (placeholders) with the corresponding
// values from the map m and writes the result to the given writer w.
//
// Substitution map m may contain values with the following types:
//   * []byte - the fastest value type
//   * string - convenient value type
//   * TagFunc - flexible value type
//
// Returns the number of bytes written to w.
//
// This function is optimized for constantly changing templates.
// Use Template.Execute for frozen templates.
Execute substitutes template tags ( placeholders ) with the corresponding values from the map m and writes the result to the given writer w . Substitution map m may contain values with the following types : * [] byte - the fastest value type * string - convenient value type * TagFunc - flexible value type Returns the number of bytes written to w . This function is optimized for constantly changing templates . Use Template . Execute for frozen templates .