Create client.go

eBook/examples/chapter_15/client.go

@@ -0,0 +1,37 @@
+package main
+
+import (
+	"bufio"
+	"fmt"
+	"net"
+	"os"
+	"strings"
+)
+
+func main() {
+	//打开连接:
+	conn, err := net.Dial("tcp", "localhost:50000")
+	if err != nil {
+		//由于目标计算机积极拒绝而无法创建连接
+		fmt.Println("Error dialing", err.Error())
+		return // 终止程序
+	}
+
+	inputReader := bufio.NewReader(os.Stdin)
+	fmt.Println("First, what is your name?")
+	clientName, _ := inputReader.ReadString('\n')
+	// fmt.Printf("CLIENTNAME %s", clientName)
+	trimmedClient := strings.Trim(clientName, "\r\n") // Windows 平台下用 "\r\n"，Linux平台下使用 "\n"
+	// 给服务器发送信息直到程序退出：
+	for {
+		fmt.Println("What to send to the server? Type Q to quit.")
+		input, _ := inputReader.ReadString('\n')
+		trimmedInput := strings.Trim(input, "\r\n")
+		// fmt.Printf("input:--s%--", input)
+		// fmt.Printf("trimmedInput:--s%--", trimmedInput)
+		if trimmedInput == "Q" {
+			return
+		}
+		_, err = conn.Write([]byte(trimmedClient + " says: " + trimmedInput))
+	}
+}