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代码功能
用户交互界面：
包括聊天历史显示区域和输入框，用户可以输入消息并发送。
消息发送和显示：
用户输入消息后点击“Send”按钮或按下回车键即可发送。
消息发送后显示在聊天记录中，并通过异步请求与后端 AI 模型通信，获取回复。
对话历史存储与管理：
聊天记录保存在 conversationHistory 数组中，用于构建上下文与后端交互。
清空对话功能：
点击“Clear”按钮后，清空页面上的聊天记录以及存储的对话历史。
样式与美观：
通过 CSS 美化了聊天界面，包括消息显示、按钮样式及自动滚动功能。
代码
<!DOCTYPE html>
<html lang="en">
<head><meta charset="UTF-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><title>AI Chatbot</title><style>/* General body styling */body {margin: 0;padding: 0;font-family: Arial, sans-serif;background-color: #f4f4f4;display: flex;justify-content: center;align-items: center;height: 100vh;}/* Chat container styling */.chat-container {width: 40%;background-color: #ffffff;box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);border-radius: 8px;display: flex;flex-direction: column;overflow: hidden;}/* Header styling */.chat-header {background-color: #4CAF50;color: white;padding: 10px;text-align: center;}/* Chat history area */.chat-history {flex-grow: 1;padding: 15px;overflow-y: auto;background-color: #f9f9f9;}/* Message styling */.message {margin-bottom: 10px;}.message.user {text-align: right;color: #333;}.message.assistant {text-align: left;color: #4CAF50;}/* Input area styling */.chat-input {display: flex;border-top: 1px solid #ddd;padding: 10px;background-color: #fff;}.chat-input input {flex-grow: 1;border: 1px solid #ddd;border-radius: 4px;padding: 10px;font-size: 14px;outline: none;}.chat-input button {margin-left: 10px;padding: 10px 15px;border: none;border-radius: 4px;font-size: 14px;cursor: pointer;}#send-button {background-color: #4CAF50;color: white;}#clear-button {background-color: #f44336;color: white;}#send-button:hover {background-color: #45a049;}#clear-button:hover {background-color: #e57373;}</style>
</head>
<body><div class="chat-container"><div class="chat-header"><h1>AI Chatbot</h1></div><div id="chat-history" class="chat-history"></div><div class="chat-input"><input id="user-input" type="text" placeholder="Type your message..." autocomplete="off"><button id="send-button">Send</button><button id="clear-button" class="clear-btn">Clear</button></div></div><script>// Select elementsconst chatHistory = document.getElementById('chat-history');const userInput = document.getElementById('user-input');const sendButton = document.getElementById('send-button');const clearButton = document.getElementById('clear-button');// Store the conversation historyconst conversationHistory = [];// Function to append messages to the chat historyfunction appendMessage(role, content) {const messageDiv = document.createElement('div');messageDiv.className = `message ${role}`;messageDiv.textContent = `${role === 'user' ? 'You' : 'AI'}: ${content}`;chatHistory.appendChild(messageDiv);chatHistory.scrollTop = chatHistory.scrollHeight; // Auto-scroll// Add to conversation historyconversationHistory.push({ role, content });}// Send message to the serverasync function sendMessage() {const message = userInput.value.trim();if (message === '') return;// Append user message to the chatappendMessage('user', message);// Clear input fielduserInput.value = '';try {// Build the message payload including historyconst payload = {model: 'Qwen/Qwen2.5-7B-Instruct',messages: conversationHistory.map(msg => ({role: msg.role === 'user' ? 'user' : 'assistant',content: msg.content}))};// Send request to the serverconst response = await fetch('https://api.siliconflow.cn/v1/chat/completions', {method: 'POST',headers: {'Content-Type': 'application/json','Authorization': 'Bearer sk-boxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxehfvctud'},body: JSON.stringify(payload)});// Parse the responseconst data = await response.json();const assistantMessage = data.choices[0].message.content;// Append AI's response to the chatappendMessage('assistant', assistantMessage);} catch (error) {appendMessage('assistant', 'Error: Unable to fetch response.');console.error(error);}// Log the updated conversation history// console.log('Current conversation history:', conversationHistory);}// Clear chat historyfunction clearChat() {chatHistory.innerHTML = '';conversationHistory.length = 0; // Clear history array// Log the updated conversation history (should be empty)// console.log('Chat cleared. Current conversation history:', conversationHistory);}// Event listenerssendButton.addEventListener('click', sendMessage);clearButton.addEventListener('click', clearChat);userInput.addEventListener('keydown', (e) => {if (e.key === 'Enter') sendMessage();});</script>
</body>
</html>提醒
需要先在siliconflow上免费注册账户，获得自己的API密钥，并将代码中的sk-boxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxehfvctud替换为自己的API密钥。同时你也可以将代码中的Qwen/Qwen2.5-7B-Instruct替换为自己喜欢的其他模型（siliconflow上有其他可以免费调用的模型）。将上述代码存储到记事本中，将文件后缀修改为.html后，双击即可运行。
