Python 练习实例30

station = 1 #假设是回文真
num = input('随意给出一个数字或字符）')
#num = '123179071321'
len = len(num)
cen_num = len / 2
if len % 2 == 0:
cen_num = len / 2
else:
cen_num = (len +1) / 2

def palindrome(cen_num, start, end):
global station
#这个时长度为奇数时，返回真
if start == cen_num:
return 1
if num[start] == num[end-1]:
station = 1
else:
#判断当出现假时，该程序立刻结束
station = 0
return
#print('start=', start, 'station=', station)
palindrome(cen_num, start+1, end-1)
return station

station = palindrome(cen_num, start=0, end=len)
#根据station状态判断，0假，1真
if station == 1:
print('It is a Palindrome Number/Word!')
else:
print('NOT Palindrome !')