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write some bytes to a file in golang
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package main | |
import ( | |
"fmt" | |
"os" | |
"encoding/binary" | |
) | |
func WritePPMHeader(outf *os.File) { | |
fheader := []byte("P6\n") | |
binary.Write(outf,binary.LittleEndian,fheader) | |
fheader2 := []byte("640 480\n") | |
binary.Write(outf,binary.LittleEndian,fheader2) | |
fheader3 := []byte("255\n") | |
binary.Write(outf,binary.LittleEndian,fheader3) | |
} | |
func main() { | |
outf,_ := os.Create("junk.bin") | |
WritePPMHeader(outf) | |
for i :=0;i<50;i++ { | |
var ii uint8 = uint8(i) | |
err := binary.Write(outf, binary.LittleEndian, ii) | |
if err != nil { | |
fmt.Println("err!",err) | |
} | |
} | |
outf.Close() | |
} |
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