数学计算
x = 2 * 3 # 乘法运算
x = 2 ** 3 # 幂运算
重复对象
>>> x = 'a' * 5
>>> x
'aaaaa'
函数定义-收集参数
def fun1(x, *args):
print(x)
print(args)
def fun2(x, **kwargs):
print(x)
print(kwargs)
def fun3(*args, **kwargs):
print(args)
print(kwargs)
fun1(0, 1, 2, 3)
fun2(0, a=1, b=2, c=3)
fun3(1, 2, 3, a=1, b=2, c=3)
函数调用-解包参数
list = [1, 2, 3]
print(*list)
resnet = models.resnet152(pretrained=True)
modules = list(resnet.children())[:-1]
resnet = nn.Sequential(*modules)
data = [(1, 'a'), (2, 'b'), (3, 'c')]
l1, l2 = zip(*data)
