C语言代码，输入一个职工的月薪 salary，输出应交的个人所得税tax(保留2 位小数)。 tax = rate * (salary-3500) - deduction 当 salary <= 3500 时，rate = 0，deduction=0; 当 3500 < salary <= 5000时，rate = 3%，deduction=0; 当 5000 < salary <= 8000时，rate = 10%，deduction=105; 当 8000 < salary <=12500 时，rate =20%，deduction=555; 当 12500 < salary <= 38500 时，rate =25%，deduction=1005; 当 38500 < salary <=58500 时，rate =30%，deduction=2755; 当 58500 < salary <= 83500 时，rate =35%，deduction=5505; 当 83500 < salary 时，rate =45%，deduction=13505;

#include <stdio.h>

int main() {
    float salary, tax, rate, deduction;
    scanf("%f", &salary);
    if (salary <= 3500) {
        rate = 0;
        deduction = 0;
    } else if (salary <= 5000) {
        rate = 0.03;
        deduction = 0;
    } else if (salary <= 8000) {
        rate = 0.1;
        deduction = 105;
    } else if (salary <= 12500) {
        rate = 0.2;
        deduction = 555;
    } else if (salary <= 38500) {
        rate = 0.25;
        deduction = 1005;
    } else if (salary <= 58500) {
        rate = 0.3;
        deduction = 2755;
    } else if (salary <= 83500) {
        rate = 0.35;
        deduction = 5505;
    } else {
        rate = 0.45;
        deduction = 13505;
    }
    tax = rate * (salary - 3500) - deduction;
    printf("%.2f", tax);
    return 0;
}