在Golang中使用全局列表变量。 收到“使用不带选择器的包裹清单”

Question

I have a global linked list named rooms. It is going to store the names of all the rooms this user enters in. In my function create I am trying to reference this list named rooms. I instantiate the list in my main function. When I try to add an item to the list "rooms" I receive the error "Use of package list without selector".

I would like to be able to add a string to my list named rooms from within my create function.

---

package main

import (
    "net"
    "fmt"
    "bufio"
    "os"
    "container/list"
)

var rooms list

func create() string{
    reader := bufio.NewReader(os.Stdin)
    fmt.Print("Name the Chatroom");
    input, _ := reader.ReadString('
');
    _ = rooms.PushFront(input);
    return "Joined room " + input;
}   

func main() {

    rooms := list.New()
    reader := bufio.NewReader(os.Stdin)
    fmt.Print("Enter a name")
    name, _ := reader.ReadString('
')

    // connect to this socket
    conn, _ := net.Dial("tcp", "127.0.0.1:8081")
    for { 
        // read in input from stdin
        reader := bufio.NewReader(os.Stdin)
        fmt.Print("Text to send: ")
        text, _ := reader.ReadString('
')
        // send to socket
        fmt.Fprintf(conn, text + "
")
        // listen for reply
        message, _ := bufio.NewReader(conn).ReadString('
')
        fmt.Print("Message from server: "+message)
    }
}  

Answer 1

The type for rooms should be *list.List, a pointer to List type from package list.

Change var rooms list to var rooms *list.List