在 ChatGPT 单个对话页面添加导出按钮，将聊天记录导出为 Markdown 文件
// ==UserScript==
// @name ChatGPT 导出聊天为 Markdown (.md)
// @namespace https://chat.openai.com/
// @version 1.0
// @description 在 ChatGPT 单个对话页面添加导出按钮，将聊天记录导出为 Markdown 文件
// @author GPT
// @match https://chatgpt.com/*
// @grant none
// @license MIT
// ==/UserScript==
(function () {
'use strict';
// 等待元素加载完毕
function waitForElement(selector, callback) {
const el = document.querySelector(selector);
if (el) {
callback(el);
} else {
setTimeout(() => waitForElement(selector, callback), 500);
}
}
// 提取聊天记录
function extractChatToMarkdown() {
const messages = document.querySelectorAll('[data-message-author-role]');
let md = '# ChatGPT 对话记录\n\n';
messages.forEach((msg) => {
const role = msg.getAttribute('data-message-author-role');
let content = msg.textContent.trim();
if (!content) return;
if (role === 'user') {
md += `\n\n## 🧑 用户提问\n\n${content}\n`;
} else if (role === 'assistant') {
// 检查是否含代码块
const preTags = msg.querySelectorAll('pre');
if (preTags.length > 0) {
preTags.forEach((pre) => {
const code = pre.textContent.trim();
content = content.replace(code, `\n\`\`\`\n${code}\n\`\`\`\n`);
});
}
md += `\n\n## 🤖 ChatGPT 回答\n\n${content}\n`;
}
});
return md;
}
// 创建按钮
function createExportButton() {
const btn = document.createElement('button');
btn.innerText = '📄 导出为 Markdown';
btn.style.position = 'fixed';
btn.style.bottom = '20px';
btn.style.right = '20px';
btn.style.zIndex = '9999';
btn.style.padding = '10px 15px';
btn.style.backgroundColor = '#10a37f';
btn.style.color = '#fff';
btn.style.border = 'none';
btn.style.borderRadius = '8px';
btn.style.cursor = 'pointer';
btn.style.boxShadow = '0 2px 10px rgba(0,0,0,0.2)';
btn.style.fontSize = '14px';
btn.onclick = () => {
const mdContent = extractChatToMarkdown();
const blob = new Blob([mdContent], { type: 'text/markdown;charset=utf-8' });
const url = URL.createObjectURL(blob);
const a = document.createElement('a');
a.href = url;
const timestamp = new Date().toISOString().slice(0, 19).replace(/[:T]/g, '-');
a.download = `ChatGPT-导出-${timestamp}.md`;
document.body.appendChild(a);
a.click();
document.body.removeChild(a);
URL.revokeObjectURL(url);
};
document.body.appendChild(btn);
}
waitForElement('main', createExportButton);
})();