tf.eval
eval(feed_dict=None, session=None) method of tensorflow.python.framework.ops.Tensor instance Evaluates(评价) this tensor in a `Session`. Calling this method will execute(执行) all preceding operations that produce the inputs needed for the operation that produces this tensor. *N.B.* Before invoking `Tensor.eval()`, its graph must have been launched in a session, and either a default session must be available, or `session` must be specified explicitly. Args: feed_dict: A dictionary that maps `Tensor`...