Keras 在训练集和测试集文件夹中发现错误数量的类。我有 3 节课，但它一直说有 4 节课。有人可以帮助我吗？
这里是代码：
cnn = Sequential()
cnn.add(Conv2D(32, (3, 3), input_shape = (64, 64, 3), activation = 'relu'))
cnn.add(Dropout(0.5))
cnn.add(MaxPooling2D(pool_size = (2, 2)))
cnn.add(Conv2D(32, (3, 3), activation = 'relu'))
cnn.add(Dropout(0.5))
cnn.add(MaxPooling2D(pool_size = (2, 2)))
cnn.add(Conv2D(64, (3, 3), activation = 'relu'))
cnn.add(Dropout(0.5))
cnn.add(MaxPooling2D(pool_size = (2, 2)))
cnn.add(Conv2D(128, (3, 3), activation = 'relu'))
cnn.add(Dropout(0.5))
cnn.add(MaxPooling2D(pool_size = (2, 2)))
#Full connection
cnn.add(Dense(units = 64, activation = 'relu'))
cnn.add(Dense(units = 64, activation = 'relu'))
cnn.add(Dense(units = 3, activation = 'softmax'))
# …