diff --git a/bilibili/aceld/IM-System/client/client.go b/bilibili/aceld/IM-System/client/client.go
index e3516cc..39fb145 100644
--- a/bilibili/aceld/IM-System/client/client.go
+++ b/bilibili/aceld/IM-System/client/client.go
@@ -2,9 +2,9 @@
 package main
 
 import (
+	"flag"
 	"fmt"
 	"net"
-	"time"
 )
 
 type Client struct {
@@ -12,6 +12,7 @@ type Client struct {
 	ServerPort int
 	Name       string
 	conn       net.Conn
+	flag       int // 当前client模式
 }
 
 func NewClient(serverIp string, serverPort int) *Client {
@@ -19,6 +20,7 @@ func NewClient(serverIp string, serverPort int) *Client {
 	client := &Client{
 		ServerIp:   serverIp,
 		ServerPort: serverPort,
+		flag:       999,
 	}
 	// 连接Server
 	conn, err := net.Dial("tcp", fmt.Sprintf("%s:%d", serverIp, serverPort))
@@ -31,15 +33,70 @@ func NewClient(serverIp string, serverPort int) *Client {
 	return client
 }
 
+func (client *Client) menu() bool {
+	var flag int
+	fmt.Println("1. 公聊模式")
+	fmt.Println("2. 私聊模式")
+	fmt.Println("3. 更新用户名")
+	fmt.Println("0. 退出")
+
+	fmt.Scanln(&flag)
+	client.flag = flag
+
+	if flag >= 0 && flag <= 3 {
+		return true
+	} else {
+		fmt.Println(">>>>>> 请输入合法的数字 <<<<<<")
+		return false
+	}
+}
+
+func (client *Client) Run() {
+	for client.flag != 0 {
+		for !client.menu() {
+
+		}
+		// 根据不同的模式处理不同的业务
+		switch client.flag {
+		case 1:
+			// 公聊模式
+			fmt.Println("已选择公聊模式...")
+		case 2:
+			// 私聊模式
+			fmt.Println("已选择私聊模式...")
+		case 3:
+			// 更新用户名
+			fmt.Println("已选择更新用户名模式...")
+		}
+	}
+}
+
+// 定义全局变量
+var serverIp string
+
+// 定义全局变量
+var serverPort int
+
+// init函数会在main函数之前执行
+func init() {
+	// ./client -ip 127.0.0.1
+	flag.StringVar(&serverIp, "ip", "127.0.0.1", "设置服务端IP地址（默认127.0.0.1）")
+	// ./client -port 8888
+	flag.IntVar(&serverPort, "port", 8888, "设置服务端端口（默认8888）")
+}
+
 func main() {
-	client := NewClient("127.0.0.1", 8888)
+	// 解析命令行传参
+	flag.Parse()
+	client := NewClient(serverIp, serverPort)
 	if client == nil {
 		fmt.Println(">>>>>> 连接服务器失败！")
 		return
 	}
 	fmt.Println(">>>>>> 连接服务器成功……")
 
-	for {
-		time.Sleep(1 * time.Second)
-	}
+	// for {
+	// 	time.Sleep(1 * time.Second)
+	// }
+	client.Run()
 }