#include<stdio.h>
#include<conio.h>
int main(int argc,const char *argv)
{
   int i;
   int a1,b,c,d;
   int q1[10]={23,57,46,19,74,88,35,1,67,90};
   int q2[10]={98,64,23,34,45,56,78,89,1,12};
   char* ans[10]={A,C,D,C,B,B,A,D,B,A};
   char k;
   int a[10][4]={{121,111,131,120},{111,131,121,120},{59,79,68,69},
                       {43,63,53,52},{109,119,129,118},{134,144,154,143},
                       {113,103,114,93},{80,100,89,90},{58,68,78,67},{102,92,112,101};
   printf("%s","welcome!");
   printf("\n开始吗？");
   while(scanf("%c",i)==1)
  {
       if(i=='n' || i=='N') break;
       if(i=='y' || i=='Y')
      {
             for(i=0; i<10; i++)
             {
                   printf("\n");
                         a1=a[i][0]; b=a[i][1]; c=a[i][2]; d=a[i][3];
                         printf("           %d+%d=?\n",q1[i],q2[i]);
                         printf("A. %d B. %d C. %d D. %d\n",a1,b,c,d);
                         printf("please select the answer\n");
                         scanf("%s",k);
                         if(k==ans[i]) printf("congratulations"); else printf("error!\n the answer is %c",ans[i]);
             }
      }
      getch();
      return 0;
}

小学生加法算数程序