有以下程序 #include #include void fun( double *p1,double *p2,double *s) { s = (double *)calloc( 1,sizeof(double) ); *s = *p1 + *( p2+1 ); } main() { double a[2] = { 1.1, 2.2 }, b[2] = { 10.0, 20.0 }, *s=a; fun( a, b, s ); printf( "%5.2f\n", *s); } 程序的输出结果是