diff --git a/DNS b/DNS
index 7966be5..b59f24c 100644
--- a/DNS
+++ b/DNS
@@ -9,272 +9,81 @@ PURPLE='\033[0;35m'
 CYAN='\033[0;36m'
 NC='\033[0m'
 
-# 日志函数
-log_info() { echo -e "${BLUE}📦 $1${NC}"; }
-log_success() { echo -e "${GREEN}✅ $1${NC}"; }
-log_warning() { echo -e "${YELLOW}⚠️  $1${NC}"; }
-log_error() { echo -e "${RED}❌ $1${NC}"; }
-log_result() { echo -e "${CYAN}📊 $1${NC}"; }
+echo -e "${PURPLE}"
+echo "=================================================="
+echo "              🌈 智能DNS推荐系统"
+echo "=================================================="
+echo -e "${NC}"
 
-# DNS提供商配置
-declare -A DNS_PROVIDERS=(
-    ["1"]="腾讯DNS:119.29.29.29,119.28.28.28"
-    ["2"]="阿里DNS:223.5.5.5,223.6.6.6"
-    ["3"]="114DNS:114.114.114.114,114.114.115.115"
-    ["4"]="Cloudflare:1.1.1.1,1.0.0.1"
-    ["5"]="GoogleDNS:8.8.8.8,8.8.4.4"
-    ["6"]="OpenDNS:208.67.222.222,208.67.220.220"
-    ["7"]="百度DNS:180.76.76.76"
-    ["8"]="CNNICSDNS:1.2.4.8,210.2.4.8"
-)
-
-# 检测当前DNS
-detect_current_dns() {
-    echo -e "${PURPLE}"
-    echo "=================================================="
-    echo "              🌈 当前DNS检测结果"
-    echo "=================================================="
-    echo -e "${NC}"
+# 测试并推荐最佳DNS
+test_and_recommend() {
+    declare -A dns_servers=(
+        ["119.29.29.29"]="腾讯DNS"
+        ["223.5.5.5"]="阿里DNS" 
+        ["114.114.114.114"]="114DNS"
+        ["8.8.8.8"]="GoogleDNS"
+        ["1.1.1.1"]="Cloudflare"
+    )
     
-    if [ -f /etc/resolv.conf ]; then
-        current_dns=$(grep -E '^nameserver' /etc/resolv.conf | awk '{print $2}' | tr '\n' ' ')
-        if [ -n "$current_dns" ]; then
-            log_result "当前DNS服务器: $current_dns"
-            
-            # 识别DNS提供商
-            for provider in "${!DNS_PROVIDERS[@]}"; do
-                dns_ips=${DNS_PROVIDERS[$provider]#*:}
-                primary_dns=${dns_ips%,*}
-                if [[ "$current_dns" == *"$primary_dns"* ]]; then
-                    provider_name=${DNS_PROVIDERS[$provider]%:*}
-                    log_success "识别为: $provider_name"
-                    break
-                fi
-            done
-        else
-            log_warning "未检测到DNS配置"
-        fi
-    else
-        log_error "未找到 resolv.conf 文件"
-    fi
-    echo ""
-}
-
-# 测试DNS速度
-test_dns_speed() {
-    local dns_ips=$1
-    local provider_name=$2
+    declare -A results
     
-    log_info "测试 $provider_name 速度..."
-    IFS=',' read -ra dns_array <<< "$dns_ips"
+    echo -e "${BLUE}🧪 测试各DNS性能...${NC}"
     
-    for dns_ip in "${dns_array[@]}"; do
-        if ping -c 2 -W 2 "$dns_ip" >/dev/null 2>&1; then
+    for dns_ip in "${!dns_servers[@]}"; do
+        total_time=0
+        success_count=0
+        test_domains=("baidu.com" "qq.com" "taobao.com")
+        
+        for domain in "${test_domains[@]}"; do
             start_time=$(date +%s%N)
-            nslookup baidu.com "$dns_ip" >/dev/null 2>&1
-            end_time=$(date +%s%N)
-            time_ms=$(( (end_time - start_time) / 1000000 ))
-            
-            if [ $time_ms -lt 50 ]; then
-                echo -e "  ${GREEN}$dns_ip: ${time_ms}ms ✅${NC}"
-            elif [ $time_ms -lt 100 ]; then
-                echo -e "  ${YELLOW}$dns_ip: ${time_ms}ms ⚠️${NC}"
-            else
-                echo -e "  ${RED}$dns_ip: ${time_ms}ms ❌${NC}"
+            nslookup $domain $dns_ip >/dev/null 2>&1
+            if [ $? -eq 0 ]; then
+                end_time=$(date +%s%N)
+                time_ms=$(( (end_time - start_time) / 1000000 ))
+                total_time=$(( total_time + time_ms ))
+                success_count=$(( success_count + 1 ))
             fi
+        done
+        
+        if [ $success_count -gt 0 ]; then
+            avg_time=$(( total_time / success_count ))
+            results[$dns_ip]=$avg_time
+            echo -e "  ${dns_servers[$dns_ip]} ($dns_ip): ${avg_time}ms"
         else
-            echo -e "  ${RED}$dns_ip: 无法连接 ❌${NC}"
+            echo -e "  ${RED}${dns_servers[$dns_ip]} ($dns_ip): 测试失败${NC}"
         fi
     done
-}
-
-# 显示DNS菜单
-show_dns_menu() {
-    echo -e "${PURPLE}"
-    echo "=================================================="
-    echo "              🌈 主流DNS提供商"
-    echo "=================================================="
-    echo -e "${NC}"
     
-    for key in "${!DNS_PROVIDERS[@]}"; do
-        provider_name=${DNS_PROVIDERS[$key]%:*}
-        dns_ips=${DNS_PROVIDERS[$key]#*:}
-        echo -e "  ${CYAN}$key. $provider_name${NC}"
-        echo -e "     ${BLUE}$dns_ips${NC}"
-    done
-    echo ""
-}
-
-# 临时设置DNS
-set_dns_temporary() {
-    local provider_key=$1
-    local provider_name=${DNS_PROVIDERS[$provider_key]%:*}
-    local dns_ips=${DNS_PROVIDERS[$provider_key]#*:}
+    # 找出最快的DNS
+    fastest_ip=""
+    fastest_time=999999
     
-    log_info "临时设置为: $provider_name"
-    
-    # 备份当前配置
-    cp /etc/resolv.conf /etc/resolv.conf.backup.$(date +%Y%m%d_%H%M%S)
-    
-    # 生成新的resolv.conf
-    echo "# 临时设置 - $provider_name ($(date))" > /etc/resolv.conf
-    IFS=',' read -ra dns_array <<< "$dns_ips"
-    for dns_ip in "${dns_array[@]}"; do
-        echo "nameserver $dns_ip" >> /etc/resolv.conf
-    done
-    echo "options timeout:2 attempts:3" >> /etc/resolv.conf
-    
-    log_success "临时DNS设置完成 (重启后恢复)"
-}
-
-# 永久设置DNS
-set_dns_permanent() {
-    local provider_key=$1
-    local provider_name=${DNS_PROVIDERS[$provider_key]%:*}
-    local dns_ips=${DNS_PROVIDERS[$provider_key]#*:}
-    
-    log_info "永久设置为: $provider_name"
-    
-    # 备份当前配置
-    cp /etc/resolv.conf /etc/resolv.conf.backup.$(date +%Y%m%d_%H%M%S)
-    
-    # 检查并禁用systemd-resolved
-    if systemctl is-active systemd-resolved >/dev/null 2>&1; then
-        log_warning "检测到systemd-resolved，正在禁用..."
-        systemctl stop systemd-resolved
-        systemctl disable systemd-resolved
-    fi
-    
-    # 生成永久配置
-    echo "# 永久设置 - $provider_name ($(date))" > /etc/resolv.conf
-    IFS=',' read -ra dns_array <<< "$dns_ips"
-    for dns_ip in "${dns_array[@]}"; do
-        echo "nameserver $dns_ip" >> /etc/resolv.conf
-    done
-    echo "options timeout:2 attempts:3" >> /etc/resolv.conf
-    
-    # 防止NetworkManager覆盖
-    if command -v NetworkManager >/dev/null 2>&1; then
-        log_info "配置NetworkManager..."
-        nmcli connection show | grep -v NAME | awk '{print $1}' | while read conn; do
-            nmcli connection modify "$conn" ipv4.ignore-auto-dns yes
-            for dns_ip in "${dns_array[@]}"; do
-                nmcli connection modify "$conn" ipv4.dns "$dns_ip"
-            done
-        done
-    fi
-    
-    # 设置文件属性防止被覆盖
-    chattr +i /etc/resolv.conf 2>/dev/null || true
-    
-    log_success "永久DNS设置完成"
-}
-
-# 恢复备份
-restore_backup() {
-    local backup_files=($(ls -t /etc/resolv.conf.backup.* 2>/dev/null))
-    
-    if [ ${#backup_files[@]} -eq 0 ]; then
-        log_error "未找到备份文件"
-        return 1
-    fi
-    
-    echo -e "${YELLOW}可用的备份文件:${NC}"
-    for i in "${!backup_files[@]}"; do
-        echo "  $((i+1)). ${backup_files[$i]}"
+    for ip in "${!results[@]}"; do
+        if [ ${results[$ip]} -lt $fastest_time ]; then
+            fastest_time=${results[$ip]}
+            fastest_ip=$ip
+        fi
     done
     
-    read -p "选择要恢复的备份编号 (1-${#backup_files[@]}): " backup_choice
-    if [[ $backup_choice =~ ^[0-9]+$ ]] && [ $backup_choice -ge 1 ] && [ $backup_choice -le ${#backup_files[@]} ]; then
-        selected_backup="${backup_files[$((backup_choice-1))]}"
-        
-        # 解除文件锁定
-        chattr -i /etc/resolv.conf 2>/dev/null || true
-        
-        cp "$selected_backup" /etc/resolv.conf
-        log_success "已从 $selected_backup 恢复DNS设置"
-    else
-        log_error "无效的选择"
+    echo -e "\n${GREEN}🎯 推荐使用: ${dns_servers[$fastest_ip]} ($fastest_ip)${NC}"
+    echo -e "${GREEN}📊 平均解析时间: ${fastest_time}ms${NC}"
+    
+    # 设置推荐DNS
+    echo -e "\n${BLUE}🔧 是否设置为推荐DNS？${NC}"
+    read -p "输入 y 确认设置: " confirm
+    if [ "$confirm" = "y" ]; then
+        echo "nameserver $fastest_ip" > /etc/resolv.conf
+        echo "nameserver 223.5.5.5" >> /etc/resolv.conf  # 备用
+        echo -e "${GREEN}✅ 已设置为 ${dns_servers[$fastest_ip]}${NC}"
     fi
 }
 
-# 主函数
-main() {
-    # 检测当前DNS
-    detect_current_dns
-    
-    while true; do
-        echo -e "${PURPLE}"
-        echo "=================================================="
-        echo "              🌈 DNS切换管理脚本"
-        echo "=================================================="
-        echo -e "${NC}"
-        
-        echo -e "${CYAN}请选择操作:${NC}"
-        echo "  1. 切换DNS提供商"
-        echo "  2. 测试所有DNS速度"
-        echo "  3. 恢复DNS备份"
-        echo "  4. 显示当前DNS"
-        echo "  5. 退出"
-        echo ""
-        
-        read -p "请输入选择 (1-5): " main_choice
-        
-        case $main_choice in
-            1)
-                show_dns_menu
-                read -p "选择DNS提供商 (1-8): " dns_choice
-                if [[ -n "${DNS_PROVIDERS[$dns_choice]}" ]]; then
-                    echo ""
-                    echo -e "${CYAN}请选择设置方式:${NC}"
-                    echo "  1. 临时设置 (重启后失效)"
-                    echo "  2. 永久设置"
-                    read -p "请输入选择 (1-2): " set_type
-                    
-                    case $set_type in
-                        1) set_dns_temporary "$dns_choice" ;;
-                        2) set_dns_permanent "$dns_choice" ;;
-                        *) log_error "无效的选择" ;;
-                    esac
-                else
-                    log_error "无效的DNS选择"
-                fi
-                ;;
-            2)
-                echo ""
-                log_info "测试所有DNS提供商速度..."
-                for key in "${!DNS_PROVIDERS[@]}"; do
-                    provider_name=${DNS_PROVIDERS[$key]%:*}
-                    dns_ips=${DNS_PROVIDERS[$key]#*:}
-                    test_dns_speed "$dns_ips" "$provider_name"
-                    echo ""
-                done
-                ;;
-            3)
-                restore_backup
-                ;;
-            4)
-                detect_current_dns
-                ;;
-            5)
-                log_success "再见！"
-                exit 0
-                ;;
-            *)
-                log_error "无效的选择"
-                ;;
-        esac
-        
-        echo ""
-        read -p "按回车键继续..."
-        clear
-    done
-}
+test_and_recommend
 
-# 脚本入口
-if [ "$(id -u)" -ne 0 ]; then
-    log_error "请使用root权限运行此脚本"
-    exit 1
-fi
-
-main
+echo -e "\n${PURPLE}==================================================${NC}"
+echo -e "${CYAN}💡 重要提醒:${NC}"
+echo -e "${YELLOW}• DNS只影响域名解析速度${NC}"
+echo -e "${YELLOW}• 不影响已经建立连接的网络延迟${NC}"  
+echo -e "${YELLOW}• 主要提升: 网页第一次打开速度${NC}"
+echo -e "${YELLOW}• 不影响: 视频缓冲、游戏延迟、下载速度${NC}"
+echo -e "${PURPLE}==================================================${NC}"