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import tensorflow as tf # ¼ÓÔØÊý¾Ý¼¯ mnist = tf.keras.datasets.mnist (x_train, y_train), (x_test, y_test) = mnist.load_data() # Êý¾ÝÔ¤´¦Àí x_train, x_test = x_train / 255.0, x_test / 255.0 # ¹¹½¨Ä£×Ó model = tf.keras.models.Sequential([ tf.keras.layers.Flatten(input_shape=(28, 28)), tf.keras.layers.Dense(128, activation='relu'), tf.keras.layers.Dropout(0.2), tf.keras.layers.Dense(10, activation='softmax') ]) # ±àÒëÄ£×Ó model.compile(optimizer='adam', loss='sparse_categorical_crossentropy', metrics=['accuracy']) # ѵÁ·Ä£×Ó model.fit(x_train, y_train, epochs=5) # ÆÀ¹ÀÄ£×Ó model.evaluate(x_test, y_test)
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