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def hex_to_fea(fea_hex):
fea_bytes = bytes.fromhex(fea_hex)
feature=pickle.loads(fea_bytes)
return feature
def feature_pickle_base(feature):
fea_pik=pickle.dumps(feature)
fea_hex =fea_pik.hex() # tensor 序列化成bytes再转成hex字符串（16进制）
return fea_hex