原文：https://studygolang.com/topics/22
package main
import (
"fmt"
"encoding/binary"
)
func main() {
var i int64 = 2323
buf := Int64ToBytes(i)
fmt.Println(buf)
fmt.Println(BytesToInt64(buf))
}
func Int64ToBytes(i int64) []byte {
var buf = make([]byte, 8)
binary.BigEndian.PutUint64(buf, uint64(i))
return buf
}
func BytesToInt64(buf []byte) int64 {
return int64(binary.BigEndian.Uint64(buf))
}
