拷贝自：
clone from: https://www.kaggle.com/code/polomarco/ecg-classification-cnn-lstm-attention-mechanism
dataset：https://www.kaggle.com/code/polomarco/ecg-classification-cnn-lstm-attention-mechanism/input
model：
用的是:
by using: CNN+LSTM+Attention mechanism
环境：
environment：8700k + 32G of RAM + GTX1060 6G
others：requirements.txt
data load：
