python Day 1

x=input(),x类型为str

x=int(input()),x类型为int

from math import sqrtdef isprime(x):     if x == 1:         return False     k = int(sqrt(x))     for j in range(2,k+1):           if x%j == 0:                 return False     return Trueif __name__ == "__main__":    flag = 'y'    while(flag == 'y'):        num = int(input("Please input a number:"))        for i in range(2,num):            if isprime(i)==1 and num % i ==0:                print (i)此为判断内部因数中的素数