c语言实验二（4）

# include <stdio.h>

int main()

{int a,b,profit;

float rate,tax;

printf("input a's number:");

scanf("%d",&a);

if(a>=5000)

rate=0.15;

else b=a/500;

switch(b) {

case 0: rate=0.00;break;

case 1:

rate=0.05;break;

case 2:

case 3: rate=0.08;break;

case 4:

case 5

: case 6:

case 7:

case 8:

case 9: rate=0.10;break;

} tax=a*rate;

profit=a-(int)(a*rate);

printf("%f,%f,%d",rate,tax,profit);

return 0;

}