hi is there any train from shanghai to lijiang and back shanghrila to shanghai and what timing ?

There is no train reaching Lijiang from Shanghai directly. You can reach Kunming first. Then from KM West Bus Station, you can find the direct buses to reach LJ. From LJ, people can find direct buses to reach Shangri-la.
The train from SH to Kunming takes about one day and about twenty hours on the way.