求教

```go package main import ( "csxieyi/protocol" "fmt" "net" "os" "strconv" "time" ) func send(conn net.Conn) { for i := 0; i < 100; i++ { session := GetSession() 这里错误 ： messages := "{\"session":session"}\" conn.Write(protocol.Enpack([]byte(messages))) } fmt.Println("send over") defer conn.Close() } func GetSession() string { gs1 := time.Now().Unix() gs2 := strconv.FormatInt(gs1, 10) return gs2 } func main() { server := ":7758" tcpAddr, err := net.ResolveTCPAddr("tcp4", server) if err != nil { fmt.Fprintf(os.Stderr, "Fatal error: %s", err.Error()) os.Exit(1) } conn, err := net.DialTCP("tcp", nil, tcpAddr) if err != nil { fmt.Fprintf(os.Stderr, "Fatal error: %s", err.Error()) os.Exit(1) } fmt.Println("connect success") send(conn) } ``` .\main.go:16: syntax error: unexpected : at end of statement .\main.go:16: newline in string