#include <iostream>
#include <cstdlib>
using namespace std;
int main()
{
 int i;
 srand(1);
 for (i = 0; i < 10; i++)
 {
 cout << rand() << " ";
 }
}

#include <iostream>
#include <ctime>
#include <cstdlib>
using namespace std;
int main()
{
 int i;
 srand((unsigned)time(NULL));
 for (i = 0; i < 10; i++)
 {
 cout << rand() << " ";
 }
 return 0;
}

#include<stdio.h>
#include<stdlib.h>
#include<time.h>
int main()
{
 char x;
 int a;
 int b;
 while (1) {
  printf("請選擇你要出的：\n");
  printf("A:剪刀\n");
  printf("B:石頭\n");
  printf("C:布\n");
  printf("D:不玩了\n");

  scanf_s("%c%*c", &x);

  switch (x) {
  case 65 | 97:
   x = 4; break;
  case 66 | 98:
   x = 7; break;
  case 67 | 99:
   x = 10; break;
  case 68 | 100:
   return 0;
  default:
   printf("Error!");
   getchar();
   system("cls");
   return 0;
   break;
  }
  srand((unsigned)time(NULL));
  a = rand() % 3;
  b = (int)x + a;

  printf("電腦出了");
  switch (a) {
  case 0:
   printf("剪刀\n\n"); break;
  case 1:
   printf("石頭\n\n"); break;
  case 2:
   printf("布\n\n"); break;
  }

  printf("你出了");
  switch (x) {
  case 4:
   printf("剪刀\n\n"); break;
  case 7:
   printf("石頭\n\n"); break;
  case 10:
   printf("布\n\n"); break;
  }

  printf("結果是：\n\n");
  if (b == 6 || b == 7 || b == 11)printf("你贏了！\n\n");
  if (b == 5 || b == 9 || b == 10)printf("電腦贏了！\n\n");
  if (b == 4 || b == 8 || b == 12)printf("平局！\n\n");

  system("pause>nul&&cls");
 }
 return 0;
}