0.Design
1)Working Scheme changed : read -> parse -> write in the same loop by sequential
2)Multi-thread -> Single-thread

1.Renaming
1)Parser -> FakeSlave_seq.py,
2)FakeSlave_mt.py -> Main.py

2.Utility.write interface
compatible with string data (ord()) read from deviceFile like disk file, and write

3.some small scripts:
1)hex2binary.py : read hex string from file like "07 12 D5 19 03 00 CF" , then write into a file using hex string
2)calc_checksum.py : XOR(exclusive or)