编写一个简单的
RemoveContents函数。例如，
package mainimport ( "fmt" "os" "path/filepath" "strings")func RemoveContents(dir string) error { d, err := os.Open(dir) if err != nil { return err } defer d.Close() names, err := d.Readdirnames(-1) if err != nil { return err } for _, name := range names { err = os.RemoveAll(filepath.Join(dir, name)) if err != nil { return err } } return nil}func main() { dir := strings.TrimSuffix(filepath.base(os.Args[0]), filepath.Ext(os.Args[0])) dir = filepath.Join(os.TempDir(), dir) dirs := filepath.Join(dir, `tmpdir`) err := os.MkdirAll(dirs, 0777) if err != nil { fmt.Println(err) os.Exit(1) } file := filepath.Join(dir, `tmpfile`) f, err := os.Create(file) if err != nil { fmt.Println(err) os.Exit(1) } f.Close() file = filepath.Join(dirs, `tmpfile`) f, err = os.Create(file) if err != nil { fmt.Println(err) os.Exit(1) } f.Close() err = RemoveContents(dir) if err != nil { fmt.Println(err) os.Exit(1) }}
