file

func CheckPermission(src string) bool

func CopyDir(source string, dest string) (err error)

func CopyFile(source string, dest string) (err error)

func ExtIsImg(extension string) bool

func GetAllFile(pathname string, allowExt []string) (res []string, err error)

func GetAppCurrentPath() (string, error)

func GetExt(fileName string) string

func GetFileSize(path string) int64

func IsDir(path string) bool

func IsExist(path string) bool

func IsNotExistMkDir(src string) error

func MkDir(src string) error

func MustOpen(fileName, filePath string) (*os.File, error)

func Open(name string, flag int, perm os.FileMode) (*os.File, error)

func ReadFile(fileName string) (string, error)

func WriteFile(b []byte, file string) error