小白求解手写数字生成代码中*block的*表示什么意思

问答
1 
class Generator(nn.Module):
    def __init__(self):
        super(Generator, self).__init__()
        self.label_emb = nn.Embedding(n_classes, n_classes)

        def block(in_feat, out_feat, normalize=True):
            layers = [nn.Linear(in_feat, out_feat)]
            if normalize:
                layers.append(nn.BatchNorm1d(out_feat, 0.8))
            layers.append(nn.LeakyReLU(0.2))
            return layers
        self.model = nn.Sequential(
            *block((latent_dim + n_classes), 128, normalize=False), 
            *block(128, 256), 
            *block(256, 512), 
            *block(512, 1024), 
            nn.Linear(1024, int(np.prod(img_shape))), 
            nn.Tanh())
2

*是python中对iterable物体的展开，用以传给函数。

举个例子：

def f(a, b, c):
    return a+b+c
f(*range(3))
# >>>> = f(0,1,2)=3
vec = [3,4,5]
f(*vec)
# >>>> = f(3,4,5)=12
tup = (6,7,8)
f(*tup)
# >>>> = f(6,7,8)=21
3

十分感谢，下午时候已弄懂。还以为是jittor特有的格式。谢谢:pray: