Python函数的不定长参数：**kwargs

• • 例1 **kwargs:可以接受任意数量关键字参数的函数
  • 例2 参数名称可以其它名称
  • 例3 kwargs的数据类型是字典、关键字参数
  • 例4 普通参数和**kwargs同时使用
  • 例5 *args和**kwargs同时使用

def myFunction(**kwargs):
    for kw in kwargs:
        print(kw, '-', kwargs[kw])

 
if __name__ == "__main__":
    myFunction(a=24, b=87, c=3, d=46)
    """程序运行结果：
    a - 24
    b - 87
    c - 3
    d - 46
    """

def myFunction(**computers):
    for kw in computers:
        print(kw, '-', computers[kw])


if __name__ == "__main__":
    myFunction(dell=1299.50, asus=1870.00, hp=1990.50)
    """
    dell - 1299.5
    asus - 1870.0
    hp - 1990.5
    """

def myFunction(**kwargs):
    for key, value in kwargs.items():
        print(key, '-', value)

if __name__ == "__main__":
    myFunction(a = 24, b = 87, c = 3, d = 46)
    """程序运行结果：
    a - 24
    b - 87
    c - 3
    d - 46
    """

def myFunction(x, y, **kwargs):
    print(x)
    print(y)
    for key, value in kwargs.items():
        print(key, '-', value)

if __name__ == "__main__":
    myFunction("ABC", "MNO", a = 24, b = 87, c = 3, d = 46)
    """程序运行结果：
    ABC
    MNO
    a - 24
    b - 87
    c - 3
    d - 46
    """

def myFunction(*args, **kwargs):
    print(args)
    print(kwargs)

if __name__ == "__main__":
    myFunction("hello", "mars", a = 24, b = 87, c = 3, d = 46)
    """程序运行结果：
    ('hello', 'mars')
    {'a': 24, 'b': 87, 'c': 3, 'd': 46}
    """