Read vulgo's comment in #36
Thank you very much guys for your reply,I have tried hdiutil before but it doesn't work see the output error:
hdiutil attach 058-70297-264.dmg
Checksumming Protective Master Boot Record (MBR : 0)…
Protective Master Boot Record (MBR :: verified CRC32 $4EBDBF65
Checksumming GPT Header (Primary GPT Header : 1)…
GPT Header (Primary GPT Header : 1): verified CRC32 $5BEB10B5
Checksumming GPT Partition Data (Primary GPT Table : 2)…
GPT Partition Data (Primary GPT Tabl: verified CRC32 $F3901BE8
Checksumming (Apple_Free : 3)…
(Apple_Free : 3): verified CRC32 $00000000
Checksumming EFI System Partition (C12A7328-F81F-11D2-BA4B-00A0C93EC93B : 4)…
.
EFI System Partition (C12A7328-F81F-: verified CRC32 $B54B659C
Checksumming disk image (Apple_APFS : 5)…
...................................
disk image (Apple_APFS : 5): verified CRC32 $E809D217
Checksumming (Apple_Free : 6)…
..............................................................................
(Apple_Free : 6): verified CRC32 $00000000
Checksumming GPT Partition Data (Backup GPT Table : 7)…
GPT Partition Data (Backup GPT Table: verified CRC32 $F3901BE8
Checksumming GPT Header (Backup GPT Header : 8)…
GPT Header (Backup GPT Header : 8): verified CRC32 $1F26133F
verified CRC32 $F33E5714
hdiutil: attach failed - no mountable file systems
by the way I'm on macOS Sierra 10.12