- 乾坤大挪移
prime_num=[num for num in range(2,101) if []== [ i for i in range(2,num/2+1) if num%i ==0]]
print prime_num
no_prime_num=[num for num in range(2,101) if []!= [ i for i in range(2,num/2+1) if num%i ==0]]
print no_prime_num
no_prime_num=[i for i in xrange(2,101) if i not in prime_num ]
print no_prime_num