second commit

wu_xinjun

2022-03-04 6d4be793db7bfe31ad12b10c9468d4ef1a5e8f52

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HAND_SHAKE_MAGIC = b"\x01\x09\x08\x09\x01\x00\x02\x02" 
HEADER_MAGIC = b"\x02\x01\x04\x03\x06\x05\x08\x07"