go使用tcp实现两边通讯

描述：客户端可以接受服务端信息 & 写数据导服务端 服务端也一样
服务端代码

package main

import (
  "bufio"
  "fmt"
  "io"
  "net"
  "os"
  "strings"
)
func process(conn net.Conn){
  defer conn.Close()
  var buf[1024]byte
  reader:=bufio.NewReader(conn)
  for {
    n,err:=reader.Read(buf[:])
    if err  == io.EOF {
      break
    }
    if err != nil {
      return
    }
    recvStr:= string(buf[:n])
    fmt.Printf("收到客户端数据:%v\n",recvStr)
  }
}

//想客户端写写入数据
func write(conn net.Conn){
  defer conn.Close()
  reader:=bufio.NewReader(os.Stdin)
  for {
    text,_:=reader.ReadString('\n')
    text = strings.TrimSpace(text)
    conn.Write([]byte(text))
  }
}
func main(){
  listener,err:=net.Listen("tcp","0.0.0.0:8890")
  if err != nil {
    fmt.Println("start server is erros")
    return
  }
  fmt.Println("服务端启动成功...")
  fmt.Println("等待客户端的连接...")
  for {
    conn,_:= listener.Accept()
    go process(conn)
    go write(conn)
  }
  defer listener.Close()
}

客户端代码

package main

import (
  "bufio"
  "fmt"
  "io"
  "net"
  "os"
  "strings"
)
func read(conn net.Conn){
  defer conn.Close()
  var buf[1024]byte
  reader:=bufio.NewReader(conn)
  for {
    n,err:=reader.Read(buf[:])
    if err  == io.EOF {
      break
    }
    if err != nil {
      return
    }
    recvStr:= string(buf[:n])
    fmt.Printf("收到服务端数据为:%v\n",recvStr)
  }
}

func main(){
  conn,err:= net.Dial("tcp","127.0.0.1:8890")
  if err != nil {
    fmt.Println("is erro")
  }
  reader:= bufio.NewReader(os.Stdin)
  fmt.Printf("%v,\n","请写入内容")
  for {
    text,_:=reader.ReadString('\n')
    text = strings.TrimSpace(text)
    if text == "exit" {
      break
    }
    conn.Write([]byte(text))

    go read(conn)
  }
  conn.Close()
}