# 使用 args 和 \*kwargs 来调用函数

那现在我们将看到怎样使用 `*args` 和 `**kwargs` 来调用一个函数。假设，你有这样一个小函数：

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

你可以使用`*args`或`**kwargs`来给这个小函数传递参数。下面是怎样做：

```python
# 首先使用 *args
>>> args = ("two", 3, 5)
>>> test_args_kwargs(*args)
arg1: two
arg2: 3
arg3: 5

# 现在使用 **kwargs:
>>> kwargs = {"arg3": 3, "arg2": "two", "arg1": 5}
>>> test_args_kwargs(**kwargs)
arg1: 5
arg2: two
arg3: 3
```

## 标准参数与 `*args`、`**kwargs` 在使用时的顺序

那么如果你想在函数里同时使用所有这三种参数， 顺序是这样的：

```python
some_func(fargs, *args, **kwargs)
```


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