我怎样才能让代码重新开始

Question

hi I want this code to start from line 3 again until the if/else is finished but i dont know what to type for the (if) part to do that

import math
rand1 = random.randint(999,10000)
rand2 = random.randint(999,10000)
randnum = rand1 * rand2 
#if randnum == randnum[::-1]:
 #   print("true" , randnum)
#else:
#pass
def rev(num):
    return int(num != 0) and ((num % 10) * (10**int(math.log(num, 10))) + rev(num // 10)) 
print ("The generated number is : " + str(randnum))
res = randnum == rev(randnum)
print(res)
if res == False :
    ```

Answer 1

You could try using the while statement, such as:

def rev(num):
    return int(num != 0) and ((num % 10) * (10**int(math.log(num, 10))) + rev(num // 10))

while res != True: # or any logic that makes sense to your problem
    rand1 = random.randint(999,10000)
    rand2 = random.randint(999,10000)
    randnum = rand1 * rand2 
    res = randnum == rev(randnum)
    print(res)