#define my_printf(f) { \ int i,j; \ for(i=1;i<=3;i++) \ {for(j=1;j<=i;j++) \ printf("%6.2f",f); \ printf("\n"); \ } \ } main() { float f; int i,j; scanf("%f",&f); my_printf(f); } /************************************************************** Problem: 1040 User: 160920009 Language: C Result: 格式错误 ****************************************************************/