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chatbox.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>仿 GPT 对话交互</title>
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/11.8.0/styles/default.min.css">
<script src="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/11.8.0/highlight.min.js"></script>
<style>
body {
font-family: Arial, sans-serif;
margin: 0;
padding: 0;
transition: background-color 0.3s ease;
}
.container {
max-width: 800px;
margin: 0 auto;
padding: 20px;
}
.chat-box {
height: 400px;
overflow-y: auto;
border: 1px solid #ccc;
padding: 10px;
display: flex;
flex-direction: column;
/* 设置整体滚动条样式 */
scrollbar-width: thin;
scrollbar-color: #888 #f1f1f1;
}
.chat-box::-webkit-scrollbar {
width: 6px; /* 调小整体滚动条宽度 */
}
.chat-box::-webkit-scrollbar-track {
background: #f1f1f1;
border-radius: 10px;
}
.chat-box::-webkit-scrollbar-thumb {
background: #888;
border-radius: 10px;
}
.message {
margin-bottom: 10px;
padding: 8px 12px;
border-radius: 8px;
max-width: 70%;
display: inline-block;
word-wrap: break-word;
}
.user-message {
background-color: #f2f2f2;
border: 1px solid #ccc;
align-self: flex-end;
}
.bot-message {
background-color: #e8eaf6;
border: 1px solid #ccc;
align-self: flex-start;
position: relative;
}
.input-box {
display: flex;
margin-top: 10px;
}
input[type="text"] {
flex-grow: 1;
padding: 5px;
border: 1px solid #ccc;
}
button {
padding: 5px 10px;
border: none;
background-color: #4CAF50;
color: white;
cursor: pointer;
}
pre code.java {
/* 设置代码块滚动条样式 */
scrollbar-width: thin;
scrollbar-color: #666 #444;
}
pre code.java::-webkit-scrollbar {
width: 4px; /* 进一步调小代码块滚动条宽度 */
}
pre code.java::-webkit-scrollbar-track {
background: #e8eaf6; /* 白天模式下代码块滚动条轨道颜色 */
border-radius: 10px;
}
pre code.java::-webkit-scrollbar-thumb {
background: #666;
border-radius: 10px;
}
/* 夜间模式样式 */
body.night-mode {
background-color: #333;
color: #fff;
}
body.night-mode.chat-box {
border-color: #666;
}
body.night-mode input[type="text"] {
background-color: #444;
color: #fff;
border-color: #666;
}
body.night-mode button {
background-color: #008CBA;
}
body.night-mode.message {
background-color: #444;
color: #fff;
border-color: #666;
}
body.night-mode pre code.java {
background-color: #444;
color: #fff;
/* 设置代码块滚动条样式 */
scrollbar-width: thin;
scrollbar-color: #666 #444;
}
body.night-mode pre code.java::-webkit-scrollbar {
width: 4px; /* 进一步调小代码块滚动条宽度 */
}
body.night-mode pre code.java::-webkit-scrollbar-track {
background: #444;
border-radius: 10px;
}
body.night-mode pre code.java::-webkit-scrollbar-thumb {
background: #666;
border-radius: 10px;
}
.code-div {
position: relative;
}
.copy-button {
position: absolute;
top: 5px;
right: 5px;
cursor: pointer;
background: none;
border: none;
padding: 0;
}
pre:hover.copy-button {
display: inline-block;
}
</style>
</head>
<body>
<div class="container">
<div class="chat-box"></div>
<div class="input-box">
<input type="text" placeholder="输入你的问题...">
<button>发送</button>
</div>
<label class="switch">
<input type="checkbox" id="night-mode-toggle">
<span class="slider round"></span>
</label>
</div>
<script>
// 切换夜间模式
document.getElementById('night-mode-toggle').addEventListener('change', function () {
document.body.classList.toggle('night-mode');
});
// 发送消息
document.querySelector('button').addEventListener('click', function () {
const input = document.querySelector('input[type="text"]');
const message = input.value;
if (message.trim()!== '') {
const chatBox = document.querySelector('.chat-box');
const userMessageDiv = document.createElement('div');
userMessageDiv.classList.add('message', 'user-message');
userMessageDiv.textContent = '你：' + message;
chatBox.appendChild(userMessageDiv);
input.value = '';
// 模拟回复 Java 代码，逐个字符输出
const botMessageDiv = document.createElement('div');
botMessageDiv.classList.add('message', 'bot-message');
let replyText = '回复：';
let index = 0;
const intervalId = setInterval(() => {
if (index < replyText.length) {
botMessageDiv.textContent += replyText[index];
index++;
} else {
clearInterval(intervalId);
// start code block
const codeDiv = document.createElement('div');
codeDiv.classList.add('code-div');
const codeBlock = document.createElement('pre');
const code = document.createElement('code');
code.classList.add('java');
codeBlock.appendChild(code);
codeDiv.appendChild(codeBlock);
botMessageDiv.appendChild(codeDiv);
chatBox.appendChild(botMessageDiv);
const codeContent = `public class HelloWorld {
public static void main(String[] args) {
System.out.println("Hello, World!");
}
}`;
let codeIndex = 0;
const codeIntervalId = setInterval(() => {
if (codeIndex < codeContent.length) {
code.textContent += codeContent[codeIndex];
codeIndex++;
hljs.highlightAll();
// 自动滚动到最后一行
chatBox.scrollTop = chatBox.scrollHeight;
} else {
clearInterval(codeIntervalId);
// 添加复制按钮
const copyButton = document.createElement('button');
copyButton.classList.add('copy-button');
copyButton.title = '复制';
copyButton.innerHTML = '📋';
codeDiv.appendChild(copyButton);
}
}, 10);
// end code block
}
}, 100);
chatBox.appendChild(botMessageDiv);
}
});
document.addEventListener('click', function (event) {
if (event.target.classList.contains('copy-button')) {
const codeBlock = event.target.parentNode;
const codeText = codeBlock.querySelector('code').textContent;
const tempInput = document.createElement('textarea');
tempInput.value = codeText;
document.body.appendChild(tempInput);
tempInput.select();
document.execCommand('copy');
document.body.removeChild(tempInput);
event.target.innerHTML = '✔';
}
});
// 初始化代码高亮
document.addEventListener('DOMContentLoaded', function () {
hljs.highlightAll();
});
// 监听 chat-box 的变化，实现自动滚动
const chatBox = document.querySelector('.chat-box');
const observer = new MutationObserver(() => {
chatBox.scrollTop = chatBox.scrollHeight;
});
observer.observe(chatBox, { childList: true });
</script>
</body>
</html>