def init(self, config, data, name=None):
self.batch_size = batch_size = config.batch_size
self.num_steps = num_steps = config.num_steps
self.epoch_size = ((len(data) // batch_size) - 1) // num_steps
self.input_data, self.targets = reader.produce_ptb(
data, batch_size, num_steps, name=name)
此处求epoch_size为什么要-1呢?