服務端:

package main

import (
    "fmt"
    "net"
)

func process(conn net.Conn){
    defer  conn.Close();
    for {
        fmt.Printf("伺服器在等待客戶端%s輸入資訊",conn.RemoteAddr().String());
        buf:=make([]byte,1024);
        n,err:=conn.Read(buf);//如果沒有發信息一致等著
        if err !=nil {
            return;
            fmt.Println(
 
"error");
        }
        content:=string(buf[:n]);
        fmt.Print(content);
    }
}

func main(){
    fmt.Println("伺服器啟動....");
    listen,err:=net.Listen("tcp","0.0.0.0:8888");
    if err != nil {
        fmt.Println("listen err=",err);
    }
    defer listen.Close();

    for{
        fmt.Println(
 
"等待客戶端來進行連線...");
        conn,err:= listen.Accept();
        if err != nil {
            fmt.Println("conn is error");
            ipaddr:=conn.RemoteAddr().String();
            fmt.Printf("accept() suc con =%v",ipaddr);
        }
        go process(conn);
    }
}

客戶端:

package main

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

func main(){
    conn,err:=net.Dial("tcp","127.0.0.1:8888");
    if err!= nil {
        fmt.Println("client dial err",err);
        return;
    }
    //給客戶端傳送資料
    reader:=bufio.NewReader(os.Stdin);//代表標準輸入
    content,err:=reader.ReadString('\n');
    if err != nil {
        fmt.Printf("read is error");
    }
    n,err:=conn.Write([]byte(content));
    if err !=nil {
        fmt.Println("send is error");
    }
    fmt.Println(n);
}