編程解決征稅問題。10000元以上征%5，5000-10000征%3，1000-5000征%2,1000以下不征稅.

#include<stdio.h>

void main(void)

{

long int income,tax;

float taxrate=0.0;

printf("請輸入收入額: ");

scanf("%d",&income);

if(income>=10000)

taxrate=0.05;

else if(income<10000&&income>=5000)

taxrate = 0.03;

else if(income<5000&&income>=1000)

taxrate = 0.02;

else if(income<1000)

taxrate = 0.0;

tax = income*taxrate;

printf("應繳稅 %d 元人民幣\n"，tax);

}