程序代码：

#include <stdio.h>
#define A 11
#define B 11
int main(void){
  int i,j,a[A][B]={1};
  for(i=1;i<=A-1;i++){
    for(j=1;j<=i;j++){
      a[i][j]=a[i-1][j-1]+a[i-1][j];
      printf("%-4d",a[i][j]);
    }
    printf("\n");
  }
  getch();
}