C++ 產生隨機密碼

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#include <time.h>#include <stdlib.h>#include <stdio.h>int main(){    int i,j;    char ss[6];    srand((unsigned)time(NULL));    for(i=1;i<=30;i++)    {        for(j=0;j<6;j++)        {            int temp=rand();            temp=temp%10;            if(temp<=3)            ss[j]=temp+48;            else            if(temp<=7)            ss[j]=temp+97;            else            ss[j]=temp+65;        }        for( j=0;j<6;j++)        printf("%c",ss[j]);        printf("\n");    }        return 0;}