func app(context *httpcanvas.Context) {
for i := 0.0; i < 100; i++ {
context.BeginPath()
context.MoveTo(50+4*i, 50)
context.LineTo(50+4*i, 100)
context.Stroke()
time.Sleep(1 * time.Second)
}
}
func app(context *httpcanvas.Context) {
context.BeginPath()
context.MoveTo(50, 50)
context.LineTo(200, 200)
context.Stroke()
time.Sleep(5 * time.Second)
context.BeginPath()
context.MoveTo(200, 50)
context.LineTo(50, 200)
context.Stroke()
}