7.12.7

7.12.7

include <stdio.h>

define basic_wage 10.00

define over_time 1.5 * 10

define three_hundred_rate 0.15

define one_hundred_half_rate 0.2

define more_then_four_hun_half_rate 0.25

define three_hundred 45

define four_hundred_half 75

float rate(float);
int main(void)
{
float hours;
float wage;

scanf("%f", &hours);
if ( hours <= (float)40)
wage = basic_wage * hours;
else
wage = basic_wage * 40 + (hours - 40.0) * over_time;
printf("一周工作%.2f个小时，工资总额:%.2f，税金：%.2f，净收入：%.2f\n",
hours, wage, rate(wage), wage - rate(wage));

return 0;
}

float rate(float wage) // 函数定义
{
float tax;
if (wage <= 300)
tax = three_hundred_rate * wage;
else if (wage <= 450)
tax = three_hundred + (wage - (float)300) * one_hundred_half_rate;
else
tax = four_hundred_half + (wage - (float)450) * more_then_four_hun_half_rate;

return tax; // 返回tax的值
}