Python中的“_args”和“__kwargs”用法详解_python

def test_var_args(f_arg, *argv):
    print("first normal arg:", f_arg)
    for arg in argv:
        print("another arg through *argv:", arg)
 
>>> test_var_args('yasoob', 'python', 'eggs', 'test')
first normal arg: yasoob
another arg through *argv: python
another arg through *argv: eggs
another arg through *argv: test

def greet_me(**kwargs):
    for key, value in kwargs.items():
        print("{0} == {1}".format(key, value))
        
>>> greet_me(name="yasoob")
name == yasoob

def test_args_kwargs(arg1, arg2, arg3):
    print("arg1:", arg1)
    print("arg2:", arg2)
    print("arg3:", arg3)

>>> args = ("two", 3, 5)
>>> test_args_kwargs(*args)
arg1: two
arg2: 3
arg3: 5

some_func(fargs, *args, **kwargs)