03.函数的参数

#计算x的n次方

def power(x,n=0):
    if x==0:
        return 0
    result = 1
    while n>0:
        n-=1
        result*=x
    return  result

print(power(2,4))

#可变参数,自动把参数封装成数组,计算传入参数的平方和
def calc(*numbers):
    sum = 0
    for i in numbers:
        sum+=(i*i)
    return  sum
print(calc(1,2))
#传入数组
list=[1,2,3]
print(calc(*list))

#关键字参数
def student(name,age,**other):
    print('name:',name,'age:',age,'other:',other)

student('tom',18)
student('tom',18,city='Hangzhou',provice='Zhejiang')
student('tom',18,**{'city':'GuangZhou'})

#命名关键字参数,用*隔开,调用时候必须传入名称
def student(name,age,*,city,job):
    print('name:',name,'age:',age,'city:',city,'job:',job)
student('jack',20,city='Beijing',job='Teacher')

C:\Users\Administrator.000\AppData\Local\Programs\Python\Python36\python.exe E:/python/03函数.py
16
5
14
name: tom age: 18 other: {}
name: tom age: 18 other: {'city': 'Hangzhou', 'provice': 'Zhejiang'}
name: tom age: 18 other: {'city': 'GuangZhou'}
name: jack age: 20 city: Beijing job: Teacher


Process finished with exit code 0