python 第四周作业

随机数比大小
import random
result = [random.randint(1,100) for i in range(19)]
print result
result1 = sorted(result)
print result1[-1],result1[-2],result1[-3]

是否回文数判断

def is_or_not(n):
    string = str(n)
    length = len(string)
    for i in range(1,length/2 + 1):
        #print i-1, -1*i
        if not string[i-1] == string[-1*i]:
            return False
    return True

n = input('Enter a number: ')
print is_or_not(n)