Merge pull request #1 from ShirleyW/master

ll
NeighborRecords
add some comments
Merge pull request #2 from ShirleyW/master

22
message and Conversion class

message class
Merge pull request #3 from west-gates/master

add message and conversion class
add Peice
clear //
Merge pull request #4 from zhlqoo/master

FileHandle
Merge pull request #2 from ShirleyW/master

0401