1 //gofmt -stdin 2 3 if err != nil { 4 source := strings.NewReader(`line 1. 5 line 2. 6 `) 7 return source 8 } 9 10 f:=func( hat, tail string){ 11 12 13 14 fmt. Println ( hat+ ` 15 foo 16 17 18 `+ tail , 19 "more" , 20 "and more" ) 21 } 22