Pytorch里用tensorboard将两条曲线画在一张图里面(报错:NotImplementedError: Got ＜class ‘dict‘＞, but numpy array, torch)

上代码

from torch.utils.tensorboard import SummaryWriter

writer=SummaryWriter("log2")

for i in range(100):
     writer.add_scalars('haha', {'Train':i*i*3+0.5}, i)
     writer.add_scalars('haha', {'Test': i*i}, i)
writer.close()
#############################################
!!!是add_scalars而不是add_scalar
有一个s!
#############################################

否则报错:

NotImplementedError: Got , but numpy array, torch tensor, or caffe2 blob name are expected.

运行截图