“4b25356981bc88ce53d6db5fb313c7489c4c749e”上不存在“...fluid/lite/core/git@gitcode.net:BaiXuePrincess/Paddle.git”
* refine stack in dygraph mode, test=develop * update stack, test=develop * rename Variable to Tensor, test=develop * add name args to fluid.layers.stack, test=develop * follow comments * update doc * update doc * follow comments