can‘t convert cuda:0 device type tensor to numpy

can't convert cuda:0 device type tensor to numpy

x是list，list内容是tensor cuda

代码：

x = np.array(x)

则会报错：

方法1：

pip install numpy==1.19.5

方法2：

for循环，把x的内容 cpu().numpy()

x= [a.cpu().numpy() for a in x]

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