golang ---image

package main

import (
	"image"
	"image/color"
	"image/gif"
	"os"
)

var palette = []color.Color{color.White, color.Black, color.RGBA{0x22, 0xCC, 0x33, 0xff}}

func main() {
	const (
		nframes = 100
		delay   = 8
		size    = 200
	)
	phase := 0
	anim := gif.GIF{LoopCount: nframes}
	for i := 0; i < nframes; i++ {
		rect := image.Rect(0, 0, size+1, size+1)
		img := image.NewPaletted(rect, palette)
		for t := 0; t < size; t++ {
			x := phase
			y := t
			img.SetColorIndex(x, y, 1)
		}
		phase += size / nframes
		anim.Delay = append(anim.Delay, delay)
		anim.Image = append(anim.Image, img)
	}
	var filename = "test.gif"
	if len(os.Args) > 1 {
		filename = os.Args[1] + ".gif"
	}
	file, _ := os.Create(filename)
	defer file.Close()
	gif.EncodeAll(file, &anim)

}

　执行命令

go build main.go
main.exe

　在当前目录中可以看到test.gif

打开即可