Update ch1-04.md

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ShiCheng 2019-04-15 17:11:48 +08:00 committed by GitHub
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@ -23,6 +23,7 @@ import (
"math" "math"
"math/rand" "math/rand"
"os" "os"
"time"
) )
var palette = []color.Color{color.White, color.Black} var palette = []color.Color{color.White, color.Black}