#include "stdio.h"
#include "stdlib.h"
#include "time.h"
int main()
{
int i;
char c,gu;
srand((unsigned)time(NULL));
c=6;
gu=rand()%6+1;
for (i=1;i<=100;i++)
{
c=rand()%31+1;
if(c>=7&&c<=13);
c=17;
if(i%9==0)
printf("%d. %c\t",i,gu);
else
printf("%d. %c\t",i,c);
if(i%5==0)
printf("\n");
}
printf("please enter a number:\n");
getchar();
for(i=1;i<=15;i++)
printf("%c",gu);
return 0;
}
心理魔术
原文：https://www.cnblogs.com/P201821430016/p/10614173.html
