package main
 
import (
	"bufio"
	"fmt"
	"net"
	"os"
	"strings"
)
 
func process(conn net.Conn) {
	defer conn.Close()
	var tmp [128]byte
	reader := bufio.NewReader(os.Stdin)
	for {
		n, err := conn.Read(tmp[:]) // 讀取連接中的數(shù)據(jù)
		if err != nil {
			fmt.Printf("read failed err:%v\n", err)
			break
		}
		fmt.Println("Clent:", string(tmp[:n]))
		fmt.Print("Server:")
		text, _ := reader.ReadString('\n')
		msg := strings.TrimSpace(text)
		conn.Write([]byte(msg))
	}
}
 
func main() {
	// 監(jiān)聽(tīng)tcp端口
	listen, err := net.Listen("tcp", "127.0.0.1:10086")
	if err != nil {
		fmt.Printf("start server failed err:%v\n", err)
		return
	}
	// for循環(huán)實(shí)現(xiàn)建立多個(gè)連接
	for {
		conn, err := listen.Accept() // 建立連接
		if err != nil {
			fmt.Printf("accept failed err:%v\n", err)
			return
		}
		// 每個(gè)連接建立一個(gè)goroutine處理連接
		go process(conn)
	}
}

package main
 
import (
	"bufio"
	"fmt"
	"net"
	"os"
	"strings"
)
 
func main() {
	// 與服務(wù)端建立連接
	conn, err := net.Dial("tcp", "127.0.0.1:10086")
	if err != nil {
		fmt.Printf("conn failed err:%v", err)
		return
	}
	var msg string
	var tmp [128]byte
	reader := bufio.NewReader(os.Stdin)
	for {
		fmt.Print("Client：")
		text, _ := reader.ReadString('\n')
		msg = strings.TrimSpace(text) // 識(shí)別字符串中的特別字符并去掉開(kāi)頭末尾空格
		if msg == "exit" {
			break
		}
		// 往連接里寫(xiě)入數(shù)據(jù)
		conn.Write([]byte(msg))
		n, err := conn.Read(tmp[:]) // 讀取連接中的數(shù)據(jù)
		if err != nil {
			fmt.Printf("read failed err:%v", err)
			return
		}
		fmt.Println("Server:", string(tmp[:n]))
	}
	conn.Close()
}