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main.go
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main.go
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package main
import (
"bytes"
"encoding/gob"
"fmt"
"io/ioutil"
"log"
"os"
)
func main() {
data := make(map[string]int, 2)
data["one"] = 1
data["two"] = 2
var buf bytes.Buffer
enc := gob.NewEncoder(&buf)
err := enc.Encode(data)
if err != nil {
log.Fatal("encode err:", err)
}
fmt.Println("buf ", buf)
fileName := "test.tradeID"
err = ioutil.WriteFile(fileName, buf.Bytes(), 0666)
file, err := os.Open(fileName)
if err != nil {
log.Fatal("os.Open err:", err)
}
defer file.Close()
dataBack, err := ioutil.ReadAll(file)
if err != nil {
log.Fatal("ioutil read all err:", err)
}
fmt.Println("dataBack", dataBack)
bufBack := bytes.NewBuffer(dataBack)
dec := gob.NewDecoder(bufBack)
mapBack := make(map[string]int, 2)
err = dec.Decode(&mapBack)
if err != nil {
log.Fatal("dec.Decode err:", err)
}
fmt.Println("mapBack[\"one\"]=", mapBack["one"])
fmt.Println("mapBack[\"two\"]=", mapBack["two"])
os.Remove(fileName)
}