警告：Your CPU supports instructions that this TensorFlow binary was not compiled to use: AVX2 FMA
加入
import os
os.environ['TF_CPP_MIN_LOG_LEVEL'] = ''
demo：
import os
os.environ['TF_CPP_MIN_LOG_LEVEL'] = ''
import tensorflow as tf
tf.enable_eager_execution()
print(tf.add(, ).numpy())
hello = tf.constant('Hello, TensorFlow!')
print(hello.numpy())
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