导语：
本文主要介绍了关于Python如何传递任意数量的实参的相关知识，希望可以帮到处于编程学习途中的小伙伴
传递任意数量的实参
在形参前加一个*，Python会以形参的名字创建一个空元组，并将所有接收到的值放入这个元组中 ：
def make_pizza(*toppings):
print("\nMaking a pizza with the following toppings: ")
for topping in toppings:
print("- " + topping)
make_pizza('pepperoni')
make_pizza('mushroom', 'green peppers', 'extra cheese')不管函数收到多少实参，这种语法都管用。
1. 结合使用位置实参和任意数量实参
def make_pizza(size, *toppings):
print("\nMaking a " + str(size) + "-inch pizza with the following toppings: ")
for topping in toppings:
print("- " + topping)
make_pizza(16, 'pepperoni')
make_pizza(12, 'mushroom', 'green peppers', 'extra cheese')运行结果：
Making a 16-inch pizza with the following toppings:
- pepperoni
Making a 12-inch pizza with the following toppings:
- mushroom
- green peppers
- extra cheese
2. 使用任意数量的关键字实参
def build_profile(first, last, **user_info):
profile = dict()
profile['first_name'] = first
profile['last_name'] = last
for key, value in user_info.items():
profile[key] = value
return profile
user_profile = build_profile('albert', 'einstein', location='princeton', field='physic')
print(user_profile)形式参数**user_info 中的两个星号导致 python 创建一个名为 user_info 的空字典。
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