package program

import (
    "bufio"
    "fmt"
    "net"
    "os"
    "strconv"
)

func main() {
    fmt.Println("Server is waiting and may print inputs,press any key to exit.")
    var isNeed bool = true
    mloop(&isNeed)
    reader := bufio.NewReader(os.Stdin)

    for true {
        text, _ := reader.ReadString('n')
        if text != "" {
            isNeed = false
            break
        }
    }
    return
}
func check(e error) {
    if e != nil {
        panic(e)
    }
    return
}
func mloop(isNeed *bool) {
    listener, err := net.Listen("tcp", ":9090")
    check(err)
    for *isNeed == true {
        conn, err := listener.Accept()
        check(err)
        go handleM(conn, isNeed)
    }
    return
}
func handleM(conn net.Conn, isNeed *bool) {
    tmp := make([]byte, 256)
    var name string = conn.RemoteAddr().String()
    for *isNeed == true {
        n, err := conn.Read(tmp)
        check(err)
        if string(tmp) == ""END"" {
            fmt.Println(name + " left")
            break
        }
        fmt.Println(name + "sad: "" + string(tmp) + "" ,msg length is" + strconv.Itoa(n))
    }
}

tema2@DESKTOP-KPPHKQ0 MINGW64 ~/Desktop/lulz
$ go build -o server.exe ./server.go

tema2@DESKTOP-KPPHKQ0 MINGW64 ~/Desktop/lulz
$ ./server.exe
./server.exe: line 1: syntax error near unexpected token `newline'
./server.exe: line 1: `!<arch>'