5/14 C++練習二

#include <stdio.h>
#include <stdlib.h>
#include <time.h>
int main(void)
{
    int i,max=100,min=200;
    int num,no[1000];
    int count=0;
    srand(time(NULL));

///////////////////陣列歸零//////////////////////
for (i=0;i<=999;i++)
no[i]=0;

//////////////////隨機產生重複數字//////////////

while (count<31)
{
      count++;
      no[count]=rand()%1000;
}

/////////////////寫檔/////////////////////////

FILE *written;
written=fopen("random.txt","w");
printf("開出的號碼是:\n");
for(i=1;i<=count;i++)
{
if(no[i]>=100 && no[i]<=200)
{
              printf("%d\n",no[i]);
              fprintf(written,"%d ",no[i]);
}
}
 close(written);

 printf("寫檔完成\n");




    system("pause");
    return 0;
}