#递归，就是函数自己调用自己
def func():
num = int(input('num:'))
if num % 2 ==0:
print('是偶数')
return
else:
func()
f = lambda x,b:str(x+b)
# result = f(1,2)
# print(result)
# def f(x):
# return str(x).zfill(2)
#
# result = list(map(lambda x:str(x).zfill(2),range(1,30) ))
#
# result = list(map(f,range(1,30) ))
#
# print(result)
# def f(x):
# return x+1
l = ['id', 'name', 'sex', 'age', 'addr', 'grade', 'phone', 'gold']
for index,value in enumerate(l):
print('%s=>%s '%(index,value))
