#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include <windows.h>
void slashCard(int arr[]){
srand((unsigned int)time(NULL));
int pool[10] = { 1, 2, 3, 4, 5, 6, 7, 8, 9 };
int s;
int i;
for (i = 0; i < 4; i++){
s = rand() % 10; //随机抽取
while (pool[s] == 1){
s++;
if (s == 10){ //防止越界
s = 0;
}
}
arr[i] = pool[s]; //取出有效的s
pool[s] = -1;
}
}
void printfArray(int arr[], int n){
int i;
for (i = 0; i < n; i++){
printf("%d", arr[i]);
}
putchar('\n');
}
int main()
{
int arr[4];
slashCard(arr);
printfArray(arr,4);
Sleep(1000); //消除伪随机
system("pause");
return 0;
}