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Python之函数参数 简述python函数参数类型以及用法( 三 )

IT技术函数


enroll('pythone', '6', city='AnShan')
def add_end(L=[]):
L.append('end')
return L
print(add_end())
print(add_end())
print(add_end())
def add_end_none(L=None):
if L is None:
L = []
L.append('END')
return L
print(add_end_none())
print(add_end_none())
print(add_end_none())
def calc(*nums):
sum = 0
for n in nums:
sum = sum + n * n
return sum
print(calc(1, 2, 3))
print(calc())
l = [1, 2, 3, 4]
print(calc(*l))
def foo(x, y):
print('x is %s' % x)
print('y is %s' % y)
foo(1, 2)
foo(y=1, x=2)
def person(name, age, **kv):
print('name:', name, 'age:', age, 'other:', kv)
person('Elder', '8')
person('Android', '9', city='BeiJing', Edu='人民大学')
extra = {'city': 'Beijing', 'job': 'Engineer'}
person('Jack', 24, **extra)
def person2(name, age, *, city, job):
print(name, age, city, job)
person2('Pthon', 8, city='BeiJing', job='Android Engineer')
def person3(name, age, *other, city='BeiJing', job='Android Engineer'):
print(name, age, other, city, job)
person3('Php', 18, 'test', 1, 2, 3)
person3('Php2', 28, 'test', 1, 2, 3, city='ShangHai', job='Pyhton Engineer')
def test2(a, b, c=0, *args, key=None, **kw):
print('a =', a, 'b =', b, 'c =', c, 'args =', args, 'key=', key, 'kw =', kw)
test2(1, 2, 3, 'a', 'b', 'c', key='key', other='extra')
args = (1, 2, 3, 4)
kw = {'d': 99, 'x': '#'}
test2(*args, **kw)
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