func main() {
flag.Parse()
croot.RegisterType(&Event{})
fmt.Printf(":: opening [%s]...\n", *fname)
f := croot.OpenFile(*fname, "read", "my event file", 1, 0)
tree0(f)
f.Close("")
}
func main() {
flag.Parse()
f := croot.OpenFile(*fname, "recreate", "my event file", 1, 0)
tree0(f)
f.Close("")
}