鄙人做了一个颜色RGB的代码，颜色过渡，不知道高手是怎么做的。求赐教

  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 
 10 namespace 动态生成RGB
 11 {
 12     public partial class Form1 : Form
 13     {
 14         public Form1()
 15         {
 16             InitializeComponent();
 17         }
 18 
 19         private void Form1_Load(object sender, EventArgs e)
 20         {
 21         }
 22         int i = 0;
 23         int j = 0;
 24         int k = 0;
 25         int x = 255, y = 255, z = 255;
 26         int a = 255, b = 0,c=0;
 27         private void timer1_Tick(object sender, EventArgs e)
 28         {
 29             if (i != 255)
 30             {
 31                 i++;
 32                 this.BackColor = Color.FromArgb(i, 0, 0);
 33             }
 34             else
 35             {
 36                 if (j != 255)
 37                 {
 38                     j++;
 39                     this.BackColor = Color.FromArgb(i, j, 0);
 40                 }
 41                 else
 42                 {
 43                     if (k != 255)
 44                     {
 45                         k++;
 46                         this.BackColor = Color.FromArgb(i, j, k);
 47                     }
 48                     else
 49                     {
 50                         if (i == 255 && k == 255)
 51                         {
 52                             if (a != 0)
 53                             {
 54                                 a--;
 55                                 this.BackColor = Color.FromArgb(i, a, k);
 56                             }
 57                             else
 58                             {
 59                                 if (x!=0)
 60                                 {
 61                                     if (c!=255)
 62                                     {
 63                                         x--;
 64                                         this.BackColor = Color.FromArgb(x, y, z);
 65                                         c++; 
 66                                         this.BackColor = Color.FromArgb(x, c, z);
 67                                     }
 68                                 }
 69                                 else
 70                                 {
 71                                     if (y!=0)
 72                                     {
 73                                         y--;
 74                                         this.BackColor = Color.FromArgb(x, y, z);
 75                                     }
 76                                     else
 77                                     {
 78                                       
 79                                         if (z!=0)
 80                                         {
 81                                             z--;
 82                                             this.BackColor = Color.FromArgb(x, y, z);
 83                                         }
 84                                         else
 85                                         {
 86                                             if (x == 0 && z == 0)
 87                                             {
 88                                                 if (b!=255)
 89                                                 {
 90                                                     b++;
 91                                                     this.BackColor = Color.FromArgb(x, b, z);
 92                                                 }
 93                                             }
 94                                         }
 95                                     }
 96                                 }
 97                             }
 98 
 99                         }
100                     }
101                 }
102             }
103         }
104     }
105 }