下面是埃氏素数筛的Python实现，横线上应填入的代码是（ ）。
1 def listPrime(N): 2 primeList = list(range(N+1)) 3 primeList[0] = primeList[1] = False 4 for i in range(2,int(N ** 0.5) + 1): 5 if primeList[i] != False: 6 for j in range(_____________): 7 primeList[j] = False 8 return [x for x in primeList if x != False]
