Python *(星号)和**(双星号)完全详解

# 解压元组
a, *b = (1, 2, 3, 4, 5)
print(a)  # 1
print(b)  # [2, 3, 4, 5]

# 解压列表
x, *y, z = [6, 7, 8, 9, 10]
print(x)  # 6
print(y)  # [7, 8, 9]
print(z)  # 10

def my_function(*args):
    for arg in args:
        print(arg)

my_function(1, 2, 3, 4, 5)
# 输出：1 2 3 4 5

def multiply(x, y):
    return x * y

values = [2, 3]
result = multiply(*values)
print(result)  # 6

def my_function(a, b, c):
    print(a, b, c)

my_dict = {'a': 1, 'b': 2, 'c': 3}
my_function(**my_dict)
# 输出：1 2 3

dict1 = {'a': 1, 'b': 2}
dict2 = {'c': 3, 'd': 4}
merged_dict = {**dict1, **dict2}
print(merged_dict)
# 输出：{'a': 1, 'b': 2, 'c': 3, 'd': 4}

def my_function(**kwargs):
    for key, value in kwargs.items():
        print(key, value)

my_function(a=1, b=2, c=3)
# 输出：a 1, b 2, c 3