506第四组课后习题
1 #include<stdio.h> 2 main() 3 { 4 int x,y; 5 float tax; 6 printf("Enter income:"); 7 scanf("%d",&x); 8 printf("\n"); 9 y=x/400; 10 switch(y) 11 { 12 case 0: 13 case 1:tax=0;break; 14 case 2:tax=(x-800)*0.05;break; 15 case 3: 16 case 4:tax=400*0.05+(x-1200)*0.08;break; 17 case 5: 18 default:tax=400*0.05+800*0.08+(x-2000)*0.20; 19 } 20 printf("Tax=%.2f\n",tax); 21 }
