Created by: jianjianGJ

import paddle.fluid as fluid import paddle.fluid.layers as layers place = fluid.CPUPlace() exe = fluid.Executor(place) W = layers.create_parameter(shape=[1], dtype='float32') y = 2*W; adam = fluid.optimizer.Adam(learning_rate=0.1) adam.minimize(y,parameter_list=[W]) exe.run(fluid.default_startup_program()) for i in range(3): result,w = exe.run(fluid.default_main_program(), fetch_list=[y, W])# 'input_image':img, print("y:",result,";w:",w) 输出： y: [2.383992] ;w: [1.191996] y: [2.383992] ;w: [1.191996] y: [2.383992] ;w: [1.191996]