源代码：

#include <stdio.h>
#include <math.h>
#define I 8
#define R 150
int main() 
{
int i,j,e; 
    int a; 
    int t1;
    for(i=1,a=I;i<=I/2;i++,a--){ 
        t1=6;
        while(t1--)printf(" ");
        
        for(j=(int) (   I-sqrt(I*I-(a-i)*(a-i))   );j>0;j--) 
            printf(" "); 
        for(e=1;e<=2*sqrt(I*I-(a-i)*(a-i));e++) 
            printf("*"); 
   for(j=(int) (   2*( I-sqrt(I*I-(a-i)*(a-i)) )   );j>0;j--) 
            printf(" ");
   for(e=1;e<=2*sqrt(I*I-(a-i)*(a-i));e++) 
            printf("*");
   for(j=(int) (   I-sqrt(I*I-(a-i)*(a-i))   );j>0;j--) 
            printf(" ");
   
   t1= (int) (   I-sqrt(I*I-(a-i)*(a-i))   ) ;
   t1= 2*t1;
   t1+=(int) ( 2*sqrt(I*I-(a-i)*(a-i)) );
   t1=20-t1;
  
   while(t1--) printf(" ");

   for(j=(int) (   I-sqrt(I*I-(a-i)*(a-i))   );j>0;j--) 
            printf(" "); 
        for(e=1;e<=2*sqrt(I*I-(a-i)*(a-i));e++) 
            printf("*"); 
   for(j=(int) (   2*( I-sqrt(I*I-(a-i)*(a-i)) )   );j>0;j--) 
            printf(" ");
   for(e=1;e<=2*sqrt(I*I-(a-i)*(a-i));e++) 
            printf("*");
   for(j=(int) (   I-sqrt(I*I-(a-i)*(a-i))   );j>0;j--) 
            printf(" ");
   
        printf("\n"); 
    } 
    
    for(i=1;i<=R/2;i++){ 
  
        if(i%2||i%3)continue;
        
        t1=6;
        if(i==6)printf(">>----");
        else while(t1--)printf(" ");
      
        for(j=(int) (   R-sqrt(R*R-i*i)   );j>0;j--)
			   printf(" "); 
        for(e=1;e<=2*( sqrt(R*R-i*i) - (R-2*I) );e++) 
            printf("*"); 
   for(j=(int) (   R-sqrt(R*R-i*i)   );j>0;j--) 
            printf(" "); 
            
        t1= (int)(   R-sqrt(R*R-i*i)   );
        t1=2*t1;
        t1+= (int)(2*( sqrt(R*R-i*i) - (R-2*I) ));
        t1=35-t1;
   
   if(i==6){printf("LOVE");}
   else if(i==48){printf("\b\b\b爱情加油!");}
   else 
               while(t1--) printf(" "); 
       for(j=(int) (   R-sqrt(R*R-i*i)   );j>0;j--) 
            printf(" "); 
        for(e=1;e<=2*( sqrt(R*R-i*i) - (R-2*I) );e++) 
            printf("*"); 
   for(j=(int) (   R-sqrt(R*R-i*i)   );j>0;j--) 
            printf(" "); 
   
   if(i==6)printf("----->");     
        printf("\n"); 
    }       
    return 0; 
}

效果