VS学习4——计算工资与扣税

static void Main(string[] args)
{
double shifa, shuilv, yingfa, sukou, koushui, a;
double qizheng = 3500;

Console.WriteLine("请输入你的发应工资");
yingfa = Convert.ToDouble(Console.ReadLine());
a = yingfa - qizheng;//*****差值*****

//分两个阶段高于3500和低于3500
if (a <= 0 && a > -1500)
{
Console.WriteLine("buyong");
}

else if (a > 0 && a <= 1500)        //     <=1500        3%    0
{
sukou = 0; shuilv = 0.03;
koushui = a * shuilv - sukou;
shifa = yingfa + koushui;
Console.WriteLine("你的应发工资和扣税是：{0}，{1}", shifa, koushui);
}
else if (a > 1500 && a <= 4500)   //1500<a<=4500    10%    105
{
sukou = 105; shuilv = 0.1;
koushui = a * shuilv - sukou;
shifa = yingfa + koushui;
Console.WriteLine("你的发工资和扣税是：{0}，{1}", shifa, koushui);
}

else if (a > 4500 && a <= 9000)//4500<a<=9000    20%    555
{
sukou = 555; shuilv = 0.2;
koushui = a * shuilv - sukou;
shifa = yingfa + koushui;
Console.WriteLine("你的应发工资和扣税是：{0}，{1}", shifa, koushui);
}
else if (a > 9000 && a <= 35000)  //9000<a<=35000    25%    1005
{
sukou = 1005; shuilv = 0.25;
koushui = a * shuilv - sukou;
shifa = yingfa + koushui;
Console.WriteLine("你的应发工资和扣税是：{0}，{1}", shifa, koushui);
}
else if (a > 35000 && a <= 55000)//35000<a<=55000    30%    2755
{
sukou = 2755; shuilv = 0.3;
koushui = a * shuilv - sukou;
shifa = yingfa + koushui;
Console.WriteLine("你的应发工资和扣税是：{0}，{1}", shifa, koushui);
}
else if (a > 55000 && a <= 80000)//55000<a<=80000    35%    5505
{
sukou = 5505; shuilv = 0.35;
koushui = a * shuilv - sukou;
shifa = yingfa + koushui;
Console.WriteLine("你的应发工资和扣税是：{0}，{1}", shifa, koushui);
}
else if (a > 80000)//80000<a        45%    13505
{
sukou = 13505; shuilv = 0.45;
koushui = a * shuilv - sukou;
shifa = yingfa + koushui;
Console.WriteLine("你的应发工资和扣税是：{0}，{1}", shifa, koushui);
}
else
{
Console.WriteLine("输入有误");
}
}