Starting from Go 1.16, ioutil.ReadAll, ioutil.ReadFile and ioutil.ReadDir are deprecated, as the package io/ioutil is deprecated.

What other stdlib packages provide the same functionality?

CodePudding user response：

ioutil.ReadAll -> io.ReadAll
ioutil.ReadFile -> os.ReadFile
ioutil.ReadDir -> os.ReadDir
// others
ioutil.NopCloser -> io.NopCloser
ioutil.ReadDir -> os.ReadDir
ioutil.TempDir -> os.MkdirTemp
ioutil.TempFile -> os.CreateTemp
ioutil.WriteFile -> os.WriteFile