Ardeal:

at present, I would like use the torch.nn.Conv2d.weight to init the self.weight of my MScon2d.weight, how to do this?


You could assign the values via:
with torch.no_grad():
    self.weight.copy_(conv_layer.weight)




 Ardeal:

is there any doc about the difference among parameter, tensor and variable in pytorch?


I think this tutorial 1 could be helpful.