2019年新个税计算器及源代码

 1 using System;
 2 using System.Collections.Generic;
 3 using System.ComponentModel;
 4 using System.Data;
 5 using System.Drawing;
 6 using System.Linq;
 7 using System.Text;
 8 using System.Windows.Forms;
 9 namespace 个税计算器v01
10 {
11     public partial class Form1 : Form
12     {
13         public Form1()
14         {
15             InitializeComponent();
16 
17             textBox1.Text="0";
18             textBox2.Text="0";
19             textBox3.Text="0";
20             textBox4.Text="0";
21             textBox5.Text="0";
22         }
23         private void button1_Click(object sender, EventArgs e)
24         {
25             double t1=double.Parse(textBox1.Text);
26             double t2=double.Parse(textBox2.Text);
27             double t3=double.Parse(textBox3.Text);
28             double t4=double.Parse(textBox4.Text);
29             double t5=double.Parse(textBox5.Text);
30             double t6=t1 - t2 - t3 - t4 - t5;
31             double d=0;
32             MessageBox.Show(t6.ToString());
33             List l=new List{ 
34             textBox01,textBox02,textBox03,textBox04,
35             textBox05,textBox06,textBox07,textBox08,
36             textBox09,textBox10,textBox11,textBox12
37             };
38             for (int i=0; i < l.Count; i++)
39             {
40                 TextBox tbs= l[i];
41                 double ts=Comput(i+1, t6) - d;
42                 tbs.Text=ts.ToString();
43                 d+=ts;
44             }
45             textBox13.Text= d.ToString();
46  
47         }
48         public static double Comput(int n,double f){
49             double m=n * f;
50             if(m<){
51                 return m * 0.03;
52             }
53             else if (m < ) {
54 
55                 return (m - ) * 0.1 +  * 0.03;
56             }
57             else if (m < )
58             {
59 
60                 return (m-)*0.2+( - ) *0.1 +  * 0.03;
61             }
62             else if (m < )
63             {
64 
65                 return (m - ) * 0.25 + ( - ) * 0.2 + ( - ) * 0.1 +  * 0.03;
66             }
67             else if (m < )
68             {
69 
70                 return (m - ) * 0.3 + ( - ) * 0.25 + ( - ) * 0.2 + ( - ) * 0.1 +  * 0.03;
71             }
72             else if (m < )
73             {
74 
75                 return (m-) * 0.35 +( - ) * 0.3 + ( - ) * 0.25 + ( - ) * 0.2 + ( - ) * 0.1 +  * 0.03;
76             }
77             else {
78                 return (m-)*0.45+ ( - ) * 0.35 - ( - ) * 0.3 + ( - ) * 0.25 + ( - ) * 0.2 + ( - ) * 0.1 +  * 0.03;
79             }
80         }
81     }
82 }