wireshark preference说明

"Arbitrary Name","%Cus:fieldname:[-1-n]:R/U" ... with optional occurrence and resolved/unresolved flag. Use an occurrence value of -1 for the last occurrence, 0 for all occurrences and any other positive integer n for the nth occurrence. resolved (R)/unresolved(U) may depend upon whether name resolution is enabled or not for those fields where it's applicable.like addresses and ports