chat.html 29.1 KB

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<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>AI 印刷助手</title>
    <script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/markdown-it/13.0.1/markdown-it.min.js"></script>
    <style>
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
            min-height: 100vh;
            display: flex;
            justify-content: center;
            align-items: center;
            padding: 20px;
        }

        .chat-container {
            width: 100%;
            max-width: 900px;
            height: 85vh;
            background: white;
            border-radius: 20px;
            box-shadow: 0 20px 60px rgba(0,0,0,0.15);
            display: flex;
            flex-direction: column;
            overflow: hidden;
        }

        .chat-header {
            background: linear-gradient(90deg, #2c3e50, #4a6491);
            color: white;
            padding: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-shrink: 0;
        }

        .header-left h1 {
            font-size: 24px;
            font-weight: 600;
            margin-bottom: 5px;
        }

        .header-left p {
            opacity: 0.8;
            font-size: 14px;
        }

        .header-right {
            display: flex;
            gap: 15px;
        }

        .model-selector {
            background: rgba(255,255,255,0.1);
            border: 1px solid rgba(255,255,255,0.2);
            color: #180a4b;
            padding: 8px 15px;
            border-radius: 20px;
            font-size: 14px;
            outline: none;
            cursor: pointer;
        }

        .model-selector:hover {
            background: rgba(255,255,255,0.2);
        }

        .chat-body {
            display: flex;
            flex: 1;
            overflow: hidden;
            min-height: 0;
        }

        .sidebar {
            width: 250px;
            background: #f8f9fa;
            border-right: 1px solid #e9ecef;
            padding: 20px;
            overflow-y: auto;
            flex-shrink: 0;
        }

        .sidebar-title {
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 15px;
            color: #2c3e50;
        }

        .preset-question {
            background: white;
            border: 1px solid #e9ecef;
            border-radius: 10px;
            padding: 12px 15px;
            margin-bottom: 10px;
            cursor: pointer;
            transition: all 0.3s;
            font-size: 14px;
        }

        .preset-question:hover {
            background: #667eea;
            color: white;
            border-color: #667eea;
            transform: translateX(5px);
        }

        .chat-main {
            flex: 1;
            display: flex;
            flex-direction: column;
            min-height: 0;
        }

        .messages-container {
            flex: 1;
            display: flex;
            flex-direction: column;
            min-height: 0;
            position: relative;
        }

        .chat-messages {
            flex: 1;
            overflow-y: auto;
            padding: 20px;
            background: white;
        }

        .message {
            margin-bottom: 20px;
            max-width: 80%;
            animation: fadeIn 0.3s ease;
        }

        .user-message {
            margin-left: auto;
        }

        .ai-message {
            margin-right: auto;
        }

        .message-bubble {
            padding: 15px 20px;
            border-radius: 20px;
            position: relative;
            word-wrap: break-word;
            line-height: 1.6;
        }

        .user-message .message-bubble {
            background: linear-gradient(90deg, #667eea, #764ba2);
            color: white;
            border-bottom-right-radius: 5px;
        }

        .ai-message .message-bubble {
            background: #f8f9fa;
            color: #333;
            border: 1px solid #e9ecef;
            border-bottom-left-radius: 5px;
        }

        .message-content {
            font-size: 15px;
        }

        .ai-message .message-content code {
            background: #e9ecef;
            padding: 2px 6px;
            border-radius: 4px;
            font-family: 'Courier New', monospace;
            font-size: 14px;
        }

        .ai-message .message-content pre {
            background: #f1f3f5;
            padding: 10px;
            border-radius: 8px;
            overflow-x: auto;
            margin: 10px 0;
            border: 1px solid #dee2e6;
        }

        .message-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-top: 8px;
            font-size: 12px;
        }

        .message-time {
            color: #6c757d;
        }

        .message-actions {
            display: flex;
            gap: 8px;
        }

        .action-btn {
            background: none;
            border: none;
            color: #6c757d;
            cursor: pointer;
            font-size: 12px;
            padding: 2px 5px;
            border-radius: 3px;
            transition: all 0.2s;
        }

        .action-btn:hover {
            background: #e9ecef;
            color: #495057;
        }

        .typing-indicator {
            display: flex;
            align-items: center;
            padding: 10px 20px;
            background: #f8f9fa;
            border-radius: 20px;
            width: fit-content;
            border: 1px solid #e9ecef;
            margin-bottom: 20px;
        }

        .typing-dot {
            width: 8px;
            height: 8px;
            background: #667eea;
            border-radius: 50%;
            margin: 0 2px;
            animation: typing 1.4s infinite;
        }

        .typing-dot:nth-child(2) { animation-delay: 0.2s; }
        .typing-dot:nth-child(3) { animation-delay: 0.4s; }

        .input-section {
            border-top: 1px solid #e9ecef;
            background: white;
            flex-shrink: 0;
        }

        .chat-input-container {
            padding: 20px;
        }

        .input-wrapper {
            display: flex;
            gap: 10px;
        }

        #messageInput {
            flex: 1;
            padding: 15px 20px;
            border: 2px solid #e9ecef;
            border-radius: 25px;
            font-size: 16px;
            outline: none;
            transition: border-color 0.3s;
        }

        #messageInput:focus {
            border-color: #667eea;
        }

        #sendButton {
            padding: 15px 30px;
            background: linear-gradient(90deg, #667eea, #764ba2);
            color: white;
            border: none;
            border-radius: 25px;
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.2s;
            white-space: nowrap;
        }

        #sendButton:hover {
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
        }

        #sendButton:disabled {
            opacity: 0.5;
            cursor: not-allowed;
            transform: none;
            box-shadow: none;
        }

        .status-bar {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 10px 20px;
            font-size: 14px;
            color: #666;
            background: #f8f9fa;
            border-top: 1px solid #e9ecef;
        }

        .api-status {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .status-indicator {
            width: 8px;
            height: 8px;
            border-radius: 50%;
        }

        .status-connected {
            background: #28a745;
            animation: pulse 2s infinite;
        }

        .status-disconnected {
            background: #dc3545;
        }

        .status-connecting {
            background: #ffc107;
        }

        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(10px); }
            to { opacity: 1; transform: translateY(0); }
        }

        @keyframes typing {
            0%, 60%, 100% { transform: translateY(0); }
            30% { transform: translateY(-10px); }
        }

        @keyframes pulse {
            0% { opacity: 1; }
            50% { opacity: 0.5; }
            100% { opacity: 1; }
        }

        /* 滚动条样式 */
        .chat-messages::-webkit-scrollbar,
        .sidebar::-webkit-scrollbar {
            width: 6px;
        }

        .chat-messages::-webkit-scrollbar-track,
        .sidebar::-webkit-scrollbar-track {
            background: #f1f1f1;
            border-radius: 3px;
        }

        .chat-messages::-webkit-scrollbar-thumb,
        .sidebar::-webkit-scrollbar-thumb {
            background: #c1c1c1;
            border-radius: 3px;
        }

        .chat-messages::-webkit-scrollbar-thumb:hover,
        .sidebar::-webkit-scrollbar-thumb:hover {
            background: #a1a1a1;
        }

        /* 底部间隔 */
        .bottom-spacer {
            height: 20px;
            flex-shrink: 0;
        }

        /* 响应式设计 */
        @media (max-width: 768px) {
            .chat-container {
                height: 95vh;
                border-radius: 10px;
            }

            .sidebar {
                display: none;
            }

            .message {
                max-width: 90%;
            }

            #sendButton {
                padding: 15px 20px;
            }

            .header-right {
                flex-direction: column;
                gap: 8px;
            }
        }
    </style>
</head>
<body>
<div class="chat-container">
    <div class="chat-header">
        <div class="header-left">
            <h1>小羚羊Ai-agent智能体</h1>
        </div>
        <div class="header-right">
            <select class="model-selector" id="modelSelector">
                <option value="process">小羚羊印刷行业大模型</option>
                <option value="general">qwen2.5:14b</option>
            </select>
            <button class="model-selector" onclick="clearChat()">清空对话</button>
        </div>
    </div>

    <div class="chat-body">
        <div class="chat-main">
            <div class="messages-container">
                <div class="chat-messages" id="chatMessages">
                    <!-- 初始欢迎消息 -->
                    <div class="message ai-message">
                        <div class="message-bubble">
                            <div class="message-content" id="ts">
                                <strong></strong><br><br>
                            </div>
                            <div class="message-meta">
                                <span class="message-time" id="welcomeTime"></span>
                            </div>
                        </div>
                    </div>
                </div>
            </div>

            <div class="input-section">
                <div class="chat-input-container">
                    <div class="input-wrapper">
                        <input type="text" id="messageInput" placeholder="输入您的问题..." autocomplete="off">
                        <audio id="audioPlayer" controls hidden="hidden"></audio>
                        <button id="sendButton" onclick="sendMessage()">发送</button>
                        <button id="reset" onclick="reset('重置')">重置</button>
                    </div>
                </div>
            </div>
        </div>
    </div>
</div>

<script>
    let sessionId ="";
    // let userid= "17706006510007934913359242990000";
    let userid= "17502321750004978169421209637000";
    let username= "admin";
    let brandsid= "1111111111";
    let subsidiaryid= "1111111111";
    let usertype= "sysadmin";
    // let usertype= "General";
    let authorization="1EDB99C9BF070115F7A57AC43D8CB09F0B8C49F979DAB63A2AEA84B372B2B42BF3419238942A93E9AD666629E18D159AF7FE144A6407DE745BA0AEC8B235FC1D2D86C92E4DCE571A8ECF0767494BBDE2495FD8E662F2065F9430347C7E4472B5538155B7ADAEE71E899235DC1122F426";
        //"1EDB99C9BF070115F7A57AC43D8CB09F0B8C49F979DAB63A2AEA84B372B2B42BF3419238942A93E9AD666629E18D159AF7FE144A6407DE745BA0AEC8B235FC1DC16A7526DEC4395CF09285C2BD330B9FD8668502224FF2D5675E74B8CDD2ABFB538155B7ADAEE71E899235DC1122F426";
    let hrefLock = window.location.origin+"/xlyAi";
    // ==================== 配置部分 ====================
    const CONFIG = {
        // Spring Boot 后端 API 地址
        backendUrl: hrefLock,
        // 请求头
        headers: {
            'Content-Type': 'application/json',
            'Accept': 'application/json'
        },

        // 聊天历史
        maxHistory: 20,

        // 流式响应配置
        // streaming: true
    };

    // 初始化变量
    let chatHistory = [];
    let currentModel = 'general';
    const md = window.markdownit({
        html: true,
        linkify: true,
        typographer: true
    });

    // ==================== 初始化函数 ====================
    $(document).ready(function() {
        // 设置欢迎消息时间
        document.getElementById('welcomeTime').textContent = getCurrentTime();
        // init();
        // 检查后端连接
        // checkBackendStatus();

        // 加载聊天历史（从本地存储）
        // loadChatHistory();

        // 聚焦输入框
        $('#messageInput').focus();
        // 绑定键盘事件
        bindKeyboardEvents();

        // 确保输入区域在底部
        ensureInputAtBottom();
    });

    // ==================== 核心功能函数 ====================
    // 生成指定长度的随机字符串（包含大小写字母和数字）
    function generateRandomString(length) {
        const chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789';
        let result = '';
        for (let i = 0; i < length; i++) {
            result += chars.charAt(Math.floor(Math.random() * chars.length));
        }

        return result;
    }

    window.onload =function(){
        // 准备请求数据
        const data = {
            text: "",
            userid: userid,
            username: username,
            brandsid: brandsid,
            subsidiaryid: subsidiaryid,
            // usertype: "General",
            usertype: usertype,
            authorization: authorization,
            voice: "zh-CN-XiaoxiaoNeural",
            rate: "+10%",
            volume: "+0%",
            voiceless: false
        };

        let initUrl=CONFIG.backendUrl+"/api/tts/init";
        $.ajax({
            url: initUrl,
            type: 'POST', // 或 'GET'
            async: false, // 关键参数：设置为 false 表示同步
            data:JSON.stringify(data),
            dataType: 'json',
            contentType: 'application/json; charset=UTF-8',
            success: function(response) {
                debugger;
                $("#ts").html((response.processedText + response.systemText) );
            },
            error: function(xhr, status, error) {
                console.log('请求失败:', error);
            }
        });

    }
    function reset(message){
        const input = $('#messageInput');
        const button = $('#sendButton');
        // 禁用输入和按钮
        input.val('');
        input.prop('disabled', true);
        button.prop('disabled', true);
        doMessage(input,message,button);
    }

    async function sendMessage() {
        const input = $('#messageInput');
        const button = $('#sendButton');
        const  message = input.val();
        if (!message) return;
        // 禁用输入和按钮
        input.val('');
        input.prop('disabled', true);
        button.prop('disabled', true);
        doMessage(input,message,button);
    }

    // 最简单版本 - 直接放在sendMessage函数里
    async function doMessage(input,message,button) {
        // 添加用户消息
        addMessage(message, 'user');

        // 显示"正在思考"
        showTypingIndicator();

        try {
            // 准备请求数据
            const requestData = {
                text: message,
                userid: userid,
                // usertype: "General",
                usertype: usertype,
                authorization: authorization,
                voice: "zh-CN-XiaoxiaoNeural",
                rate: "+10%",
                volume: "+0%",
                voiceless: false
            };

            // 发送请求
            const response = await fetch(`${CONFIG.backendUrl}/api/tts/stream/query`, {
                method: 'POST',
                headers: { 'Content-Type': 'application/json' },
                body: JSON.stringify(requestData)
            });

            const data = await response.json();

            // 隐藏"正在思考"
            hideTypingIndicator();
           // console.log("data==",data)
            // 显示AI回复文字
            addMessage((data.processedText + data.systemText) || data.originalText || message, 'ai');

            // 播放音频
            if (data.audioBase64) {
                const audioBlob = base64ToBlob(data.audioBase64);
                const audio = new Audio(URL.createObjectURL(audioBlob));
                audio.play();
            }

        } catch (error) {
            console.error('错误:', error);
            hideTypingIndicator();
            addMessage(message, 'ai'); // 出错也显示原消息
        } finally {
            // 恢复输入框
            input.prop('disabled', false);
            button.prop('disabled', false);
            input.focus();
            scrollToBottom();
        }
    }

    // 工具函数
    function base64ToBlob(base64) {
        const byteCharacters = atob(base64);
        const byteNumbers = new Array(byteCharacters.length);
        for (let i = 0; i < byteCharacters.length; i++) {
            byteNumbers[i] = byteCharacters.charCodeAt(i);
        }
        return new Blob([new Uint8Array(byteNumbers)], { type: 'audio/mpeg' });
    }

    // 处理非流式响应
    async function handleNormalResponse(requestData) {
        try {
            console.log("requestData",requestData);
            const response = await fetch(`${CONFIG.backendUrl}/api/tts/stream/query`, {
                method: 'POST',
                headers: CONFIG.headers,
                body: JSON.stringify(requestData)
            });
            if (!response.ok) {
                throw new Error(`HTTP ${response.status}: ${response.statusText}`);
            }
            console.log("123",response);

            // // 流式请求
            // const audioBlob = await response.blob();
            // currentAudioBlob = audioBlob;
            // currentAudioUrl = URL.createObjectURL(audioBlob);
            // elements.audioPlayer.src = currentAudioUrl
            // elements.audioPlayer.play();
            //
            // const messageDetail = await response.messageDetail;
            // hideTypingIndicator();
            // // 添加AI回复
            // if (data.data) {
            //     addMessage(data.data, 'ai');
            //     saveToHistory('assistant', data.content);
            //     updateStatus('回答完成', 'connected');
            // }

        } catch (error) {
            hideTypingIndicator();
            throw error;
        } finally {
            // 确保输入区域在底部
            ensureInputAtBottom();
        }
    }

    // ==================== 界面辅助函数 ====================

    // 获取当前时间
    function getCurrentTime() {
        const now = new Date();
        return now.getHours().toString().padStart(2, '0') + ':' +
            now.getMinutes().toString().padStart(2, '0');
    }

    // 添加消息到界面
    function addMessage(content, type = 'ai') {
        const messagesDiv = $('#chatMessages');
        const messageId = `msg-${Date.now()}-${Math.random().toString(36).substr(2, 9)}`;

        const messageHtml = `
                <div class="message ${type}-message" id="${messageId}">
                    <div class="message-bubble">
                        <div class="message-content">${type === 'ai' ? md.render(content) : content}</div>
                        <div class="message-meta">
                            <span class="message-time">${getCurrentTime()}</span>
                            <div class="message-actions">
                                <button class="action-btn" onclick="copyMessage('${messageId}')">复制</button>
                            </div>
                            <div class="message-actions">
                                 <button class="action-btn" onclick="regenerateMessage('${messageId}')">重新生成</button>
                            </div>
                        </div>
                    </div>
                </div>
            `;

        messagesDiv.append(messageHtml);
        scrollToBottom();

        return messageId;
    }

    // 更新消息内容
    // function updateMessage(messageId, content) {
    //     const messageDiv = $(`#${messageId}`);
    //     if (messageDiv.length) {
    //         messageDiv.find('.message-content').html(md.render(content));
    //         scrollToBottom();
    //     }
    // }

    // 显示/隐藏打字机效果
    function showTypingIndicator() {
        const messagesDiv = $('#chatMessages');
        const typingHtml = `
                <div class="message ai-message" id="typingIndicator">
                    <div class="typing-indicator">
                        <div class="typing-dot"></div>
                        <div class="typing-dot"></div>
                        <div class="typing-dot"></div>
                        <span style="margin-left: 10px; color: #666; font-size: 14px;">正在思考...</span>
                    </div>
                </div>
            `;
        messagesDiv.append(typingHtml);
        scrollToBottom();
    }

    function hideTypingIndicator() {
        $('#typingIndicator').remove();
    }

    // 更新状态显示
    function updateStatus(text, type = 'connected') {
        const indicator = $('#statusIndicator');
        const statusText = $('#statusText');
        statusText.text(text);
        indicator.removeClass('status-connected status-disconnected status-connecting');
        switch(type) {
            case 'connected':
                indicator.addClass('status-connected');
                break;
            case 'error':
                indicator.addClass('status-disconnected');
                break;
            case 'connecting':
                indicator.addClass('status-connecting');
                break;
        }
    }

    // 滚动到底部
    function scrollToBottom() {
        const messagesDiv = $('#chatMessages');
        // 添加延迟确保DOM更新完成
        setTimeout(() => {
            messagesDiv.scrollTop(messagesDiv[0].scrollHeight);
        }, 10);
    }

    // 确保输入区域在底部
    function ensureInputAtBottom() {
        // 添加一个小的延迟，确保DOM更新完成
        setTimeout(() => {
            scrollToBottom();

            // 添加一个空div来确保底部有空间
            const messagesDiv = $('#chatMessages');
            let bottomSpacer = messagesDiv.find('.bottom-spacer');
            if (bottomSpacer.length === 0) {
                messagesDiv.append('<div class="bottom-spacer"></div>');
            }
        }, 100);
    }

    // ==================== 历史管理函数 ====================

    // 保存到历史
    function saveToHistory(role, content) {
        chatHistory.push({
            role: role,
            content: content,
            timestamp: Date.now()
        });

        // 限制历史长度
        if (chatHistory.length > CONFIG.maxHistory) {
            chatHistory = chatHistory.slice(-CONFIG.maxHistory);
        }

        // 保存到本地存储
        localStorage.setItem('chatHistory', JSON.stringify(chatHistory));
    }

    // 加载聊天历史
    function loadChatHistory() {
        const saved = localStorage.getItem('chatHistory');
        if (saved) {
            try {
                chatHistory = JSON.parse(saved);
                // 如果有历史消息，加载到界面
                if (chatHistory.length > 0) {
                    chatHistory.forEach(item => {
                        if (item.role === 'user' || item.role === 'assistant') {
                            addMessage(item.content, item.role === 'user' ? 'user' : 'ai');
                        }
                    });
                    ensureInputAtBottom();
                }
            } catch (e) {
                console.error('加载聊天历史失败:', e);
                chatHistory = [];
            }
        }
    }

    // ==================== 事件处理函数 ====================

    // 预设问题点击
    // function askPresetQuestion(question) {
    //     $('#messageInput').val(question);
    //     sendMessage();
    // }

    // 清空对话
    function clearChat() {
        if (confirm('确定要清空当前对话吗？')) {
            $('#chatMessages').html(`
                    <div class="message ai-message">
                        <div class="message-bubble">
                            <div class="message-content">
                                对话已清空，请开始新的对话。
                            </div>
                            <div class="message-meta">
                                <span class="message-time">${getCurrentTime()}</span>
                            </div>
                        </div>
                    </div>
                `);
            chatHistory = [];
            localStorage.removeItem('chatHistory');
            updateStatus('对话已清空', 'connected');
            sessionId ="";
            // 确保输入区域在底部
            ensureInputAtBottom();
        }
    }

    // 复制消息
    function copyMessage(messageId) {
        const messageContent = $(`#${messageId}`).find('.message-content').text();
        navigator.clipboard.writeText(messageContent).then(() => {
            // 显示复制成功的反馈
            const button = $(`#${messageId} .action-btn:first-child`);
            const originalText = button.text();
            button.text('已复制');
            setTimeout(() => {
                button.text(originalText);
            }, 2000);
        });
    }

    // 重新生成消息
    function regenerateMessage(messageId) {
        // 找到对应的用户消息
        const messageDiv = $(`#${messageId}`);
        const content = messageDiv.find('.message-content').text();

        // 从历史中移除
        chatHistory = chatHistory.filter(item =>
            item.role !== 'assistant' || item.content !== content
        );

        // 重新发送
        $('#messageInput').val(content);
        sendMessage();

        // 移除旧消息
        messageDiv.remove();
    }

    // 错误处理
    function handleError(error) {
        hideTypingIndicator();

        const errorMessage = `
                抱歉，请求出现错误：${error.message}<br><br>
                <strong>可能的原因：</strong><br>
                1. Spring Boot 后端服务未启动<br>
                2. API 接口路径不正确<br>
                3. 网络连接问题<br><br>
                <strong>检查步骤：</strong><br>
                1. 确保后端服务在端口 8099 运行<br>
                2. 检查浏览器控制台查看详细错误<br>
                3. 刷新页面重试
            `;

        addMessage(errorMessage, 'ai');
        updateStatus('请求失败', 'error');
        // 确保输入区域在底部
        ensureInputAtBottom();
    }

    // 绑定键盘事件
    function bindKeyboardEvents() {
        $('#messageInput').on('keypress', function(e) {
            if (e.which === 13 && !e.shiftKey) {
                e.preventDefault();
                sendMessage();
            }
        });

        $(document).on('keydown', function(e) {
            // Ctrl + Enter 发送
            if (e.ctrlKey && e.key === 'Enter') {
                sendMessage();
            }

            // ESC 清空输入框
            if (e.key === 'Escape') {
                $('#messageInput').val('');
            }

            // 上箭头恢复上一条消息
            if (e.key === 'ArrowUp' && $('#messageInput').val() === '') {
                const lastUserMessage = chatHistory
                    .filter(item => item.role === 'user')
                    .pop();
                if (lastUserMessage) {
                    $('#messageInput').val(lastUserMessage.content);
                    e.preventDefault();
                }
            }
        });
    }

    // 模型选择器变化
    $('#modelSelector').on('change', function() {
        currentModel = $(this).val();
        updateStatus(`切换到${$(this).find('option:selected').text()}模式`, 'connected');
    });

    // 监听窗口大小变化，重新计算布局
    $(window).on('resize', function() {
        ensureInputAtBottom();
    });
</script>
</body>
</html>