import md1 as m1
import md2
#三个数相加求和
def add(a = 0, b = 0, c = 0):
return a + b + c
print(add())
print(add(1))
print(add(1, 2, 3))
print(add(c = 50, b = 1, a = 2))
#可变参数
def fun(*args):
for val in args:
print(val)
fun(1)
fun(1, 2, 3, 99, 88)
m1.fun()
md2.fun()
#from module2 import foo
#from module2 import foo as f2