在dotnetcore（C#）下的颜色渐变

 1 public IList ShadeColors(Color c1, Color c2, int resultCount)
 2 {
 3     var result = new List();
 4     for (int i = 0; i )
 5     {
 6         var a = c1.A + (int)((c2.A - c1.A) * i / resultCount);
 7         var r = c1.R + (int)((c2.R - c1.R) * i / resultCount);
 8         var g = c1.G + (int)((c2.G - c1.G) * i / resultCount);
 9         var b = c1.B + (int)((c2.B - c1.B) * i / resultCount);
10         var c = Color.FromArgb(a, r, g, b);
11         result.Add(c);
12     }
13     return result;
14 }

RUN apt-get update \
    && apt-get install -y --allow-unauthenticated \
    libc6-dev \
    libgdiplus \
    libx11-dev \
    && rm -rf /var/lib/apt/lists/*

 1 static void Main(string[] args)
 2 {
 3     int size = 300;
 4     int h = 30;
 5     var bmp = new Bitmap(size, h, PixelFormat.Format32bppArgb);
 6     Color c1 = Color.FromArgb(0xff, Color.Green);
 7     Color c2 = Color.FromArgb(0x4e, Color.Yellow);
 8     var cs = ShadeColors(c1, c2, size);
 9     for (int i = 0; i )
10     {
11         for (int j = 0; j )
12         {
13             bmp.SetPixel(i, j, cs[i]);
14         }
15     }
16     bmp.Save("shade.png", ImageFormat.Png);
17     Console.WriteLine("Hello World!");
18     // Console.ReadLine();
19 }