Created by: WorldEditors

代码如下 https://paste.ubuntu.com/p/syJQXnSmDp/ 对梯度变量设置stop_gradient=True（第8行）时会出错 报错信息在第10行

Traceback (most recent call last): File "test.py", line 10, in grad2 = fluid.gradients(net(x - grad1), x)[0] # gradients( (x - 2x)^2) = 2x = 4 IndexError: list index out of range