Created by: zehua9500

`import numpy as np import os import pandas as pd import paddle.fluid as fluid import paddle import cv2 import json import random import time

with fluid.dygraph.guard(): a = fluid.dygraph.to_variable(np.arange(3)) b = fluid.dygraph.to_variable(np.arange(3)) out = fluid.layers.greater_than(x=a, y=b) print(fluid.layers.elementwise_min(a,b))`

在AI studio上执行这段代码时，notebook会一直在转圈，也不报错