UserWarning: size_average and reduce args will be deprecated, please use reduction=‘sum‘ instead. wa

此报错为pytorch不同版本进行更新迭代时引起的警告，某些参数被取代了

修正：

criterion = torch.nn.BCELoss(size_average=True)
改为：
criterion = torch.nn.BCELoss(reduction='mean')

criterion = torch.nn.BCELoss(size_average=False)
改为：
criterion = torch.nn.BCELoss(reduction='sum')


其它损失函数更改方法类似