README ¶ Q3.5 : CopyN io.Copy()と本章で紹介した構造体のどれかを使って、3.2.2「コピーの補助関数」で紹介したio.CopyN(dest io.Writer, src io.Reader, length int)を実装してみてください。 Result $ gor mycopyn.go origin string = test test test tes copied size = 3 Expand ▾ Collapse ▴ Documentation ¶ There is no documentation for this package. Source Files ¶ View all Source files mycopyn.go Click to show internal directories. Click to hide internal directories.