话不多说。直接上代码。

int printPrimaryNumber(int nUpperBound){    int iTotal = 0;    // Primary number start with 2.    for (int i = 2; i <= nUpperBound; i++)    {        bool isPrimary = true;        for (int j = 2; j < i; j++)        {            if (i % j == 0)            {                isPrimary = false;                break;            }        }        if (isPrimary)        {            iTotal++;            printf("%d, ", i);        }    }    printf("Total: %d.\n", iTotal);    return 0;}