如何用一个tensor给另一个tensor赋值？

 
直接赋值会报 TypeError: 'Tensor' object does not support item assignment
tensorflow里面提供了assign()函数，注意被赋值的应该是一个tensor变量 

  def assign(self, value, use_locking=False):

    """Assigns a new value to the variable.



    This is essentially a shortcut for `assign(self, value)`.



    Args:

      value: A `Tensor`. The new value for this variable.

      use_locking: If `True`, use locking during the assignment.



    Returns:

      A `Tensor` that will hold the new value of this variable after

      the assignment has completed.

    """