Python在函数中使用*和**接收元组和列表

#! /usr/bin/python
# Filename: tuple_function.py
# 2010-7-19 wcdj
def powersum(power, *args):
    ‘‘‘Return the sum of each argument raised
to specified power.‘‘‘
    
    total=0
    for i in args:
        total+=pow(i,power)
    return total
print ‘powersum(2, 3, 4)==‘, powersum(2, 3, 4)
print ‘powersum(2, 10)==‘, powersum(2, 10)
########
# output
########
powersum(2, 3, 4)==25
powersum(2, 10)==100 

#! /usr/bin/python
# Filename: dict_function.py
# 2010-7-19 wcdj
def findad(username, **args):
    ‘‘‘find address by dictionary‘‘‘
    print ‘Hello: ‘, username
    for name, address in args.items():
        print ‘Contact %s at %s‘ % (name, address)
findad(‘wcdj‘, gerry=‘gerry@byteofpython.info‘, /
        wcdj=‘wcdj@126.com‘, yj=‘yj@gmail.com‘