feat(ai): diff弹窗文档对比高亮 + 二次修改未弹窗修复
- 引入diff库,实现字符级差异比对 - diffModal左右两侧增加diff高亮:左侧删除内容标红,右侧新增内容标绿 - systemPrompt增加绝对强制条款:无论指令多小都必须返回updatedHtml - 前端校验兜底:修改模式下未返回updatedHtml时在聊天面板给出提示 - confirmAiInjection注入前清理diff高亮span,避免污染编辑器
This commit is contained in:
10
package-lock.json
generated
10
package-lock.json
generated
@@ -11,6 +11,7 @@
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"@google/genai": "^1.29.0",
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"@tailwindcss/vite": "^4.1.14",
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"@vitejs/plugin-react": "^5.0.4",
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"diff": "^9.0.0",
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"dotenv": "^17.2.3",
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"express": "^4.21.2",
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"lucide-react": "^0.546.0",
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@@ -1957,6 +1958,15 @@
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"node": ">=8"
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}
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},
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"node_modules/diff": {
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"version": "9.0.0",
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"resolved": "https://registry.npmjs.org/diff/-/diff-9.0.0.tgz",
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"integrity": "sha512-svtcdpS8CgJyqAjEQIXdb3OjhFVVYjzGAPO8WGCmRbrml64SPw/jJD4GoE98aR7r25A0XcgrK3F02yw9R/vhQw==",
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"license": "BSD-3-Clause",
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"engines": {
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"node": ">=0.3.1"
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}
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},
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"node_modules/dotenv": {
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"version": "17.4.2",
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"resolved": "https://registry.npmjs.org/dotenv/-/dotenv-17.4.2.tgz",
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@@ -14,6 +14,7 @@
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"@google/genai": "^1.29.0",
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"@tailwindcss/vite": "^4.1.14",
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"@vitejs/plugin-react": "^5.0.4",
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"diff": "^9.0.0",
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"dotenv": "^17.2.3",
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"express": "^4.21.2",
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"lucide-react": "^0.546.0",
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@@ -12,6 +12,7 @@ import { User, Report, Template, CapturedFrame, SystemSettings, FormField, DEFAU
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import { defaultReportContent } from '../utils/defaultContent';
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import { printDocument } from '../utils/print';
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import { storage } from '../utils/storage';
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import { diffChars } from 'diff';
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export default function ReportEditor() {
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const navigate = useNavigate();
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@@ -823,6 +824,28 @@ export default function ReportEditor() {
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}).filter(r => r.id);
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};
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const stripHtml = (html: string): string => {
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const tmp = document.createElement('div');
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tmp.innerHTML = html.replace(/<\/p>/gi, '</p>\n').replace(/<br\s*\/?>/gi, '\n');
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return (tmp.innerText || tmp.textContent || '').trim();
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};
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const computeDiffHtml = (oldText: string, newText: string, side: 'left' | 'right'): string => {
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const diffs = diffChars(oldText, newText);
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let html = '';
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for (const part of diffs) {
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let value = part.value.replace(/</g, '<').replace(/>/g, '>').replace(/\n/g, '<br>');
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if (side === 'left' && part.removed) {
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html += `<span class="diff-removed" style="background-color:#fee2e2;color:#dc2626;text-decoration:line-through;">${value}</span>`;
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} else if (side === 'right' && part.added) {
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html += `<span class="diff-added" style="background-color:#dcfce7;color:#16a34a;font-weight:500;">${value}</span>`;
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} else if (!part.added && !part.removed) {
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html += value;
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}
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}
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return html;
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};
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const toggleListening = () => {
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if (isListening) {
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setIsListening(false);
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@@ -952,6 +975,9 @@ export default function ReportEditor() {
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if (responseJson.reply) {
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setChatMessages(prev => [...prev, { id: Date.now().toString(), role: 'model', content: responseJson.reply }]);
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}
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if (aiModifyEnabled && !responseJson.updatedHtml) {
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setChatMessages(prev => [...prev, { id: Date.now().toString(), role: 'model', content: '【系统提示】AI 未能生成修改内容,请尝试重新描述您的需求。' }]);
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}
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if (responseJson.updatedHtml && aiModifyEnabled) {
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let cleanHtml = responseJson.updatedHtml;
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cleanHtml = cleanHtml.replace(/<br\s*\/?>/gi, '');
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@@ -981,6 +1007,7 @@ export default function ReportEditor() {
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const confirmAiInjection = (newHtml: string, regionId: string) => {
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if (!editorRef.current) return;
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const cleanHtml = newHtml.replace(/<span class="diff-(added|removed)"[^>]*>(.*?)<\/span>/gi, '$2');
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const targetContent = editorRef.current.querySelector(`.ai-region[data-ai-id="${regionId}"] .ai-content`) as HTMLElement;
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if (targetContent) {
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targetContent.focus();
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@@ -2623,27 +2650,35 @@ export default function ReportEditor() {
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</div>
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<button onClick={() => setDiffModal(null)} className="text-slate-400 hover:text-slate-600"><X size={20}/></button>
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</div>
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<div className="flex-1 overflow-hidden flex gap-4 p-6 bg-slate-100">
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<div className="flex-1 flex flex-col bg-white border border-red-200 rounded-xl overflow-hidden shadow-sm">
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<div className="bg-red-50 px-3 py-2 text-xs font-bold text-red-600 border-b border-red-100 uppercase tracking-wider">原始版本</div>
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<div className="p-4 flex-1 overflow-y-auto opacity-70 cursor-not-allowed custom-scrollbar"
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dangerouslySetInnerHTML={{ __html: diffModal.originalHtml }}></div>
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</div>
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<div className="flex-1 flex flex-col bg-white border border-green-400 rounded-xl overflow-hidden shadow-md relative">
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<div className="bg-green-50 px-3 py-2 text-xs font-bold text-green-700 border-b border-green-200 uppercase tracking-wider flex justify-between">
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<span>AI 提议版本 (可直接编辑)</span>
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<span className="text-[10px] bg-green-200 px-1.5 py-0.5 rounded text-green-800">编辑态</span>
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{(() => {
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const oldText = stripHtml(diffModal.originalHtml);
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const newText = stripHtml(diffModal.newHtml);
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const leftDiffHtml = computeDiffHtml(oldText, newText, 'left');
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const rightDiffHtml = computeDiffHtml(oldText, newText, 'right');
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return (
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<div className="flex-1 overflow-hidden flex gap-4 p-6 bg-slate-100">
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<div className="flex-1 flex flex-col bg-white border border-red-200 rounded-xl overflow-hidden shadow-sm">
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<div className="bg-red-50 px-3 py-2 text-xs font-bold text-red-600 border-b border-red-100 uppercase tracking-wider">原始版本</div>
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<div className="p-4 flex-1 overflow-y-auto opacity-70 cursor-not-allowed custom-scrollbar"
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dangerouslySetInnerHTML={{ __html: leftDiffHtml }}></div>
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</div>
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<div className="flex-1 flex flex-col bg-white border border-green-400 rounded-xl overflow-hidden shadow-md relative">
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<div className="bg-green-50 px-3 py-2 text-xs font-bold text-green-700 border-b border-green-200 uppercase tracking-wider flex justify-between">
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<span>AI 提议版本 (可直接编辑)</span>
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<span className="text-[10px] bg-green-200 px-1.5 py-0.5 rounded text-green-800">编辑态</span>
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</div>
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<div
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className="p-4 flex-1 overflow-y-auto outline-none custom-scrollbar"
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contentEditable
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suppressContentEditableWarning
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onBlur={(e) => setDiffModal(prev => prev ? { ...prev, newHtml: e.target.innerHTML } : null)}
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dangerouslySetInnerHTML={{ __html: rightDiffHtml }}
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style={{ fontFamily: 'SimSun, "Microsoft YaHei", serif', fontSize: '12pt', lineHeight: '1.5' }}
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></div>
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</div>
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</div>
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<div
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className="p-4 flex-1 overflow-y-auto outline-none custom-scrollbar"
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contentEditable
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suppressContentEditableWarning
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onBlur={(e) => setDiffModal(prev => prev ? { ...prev, newHtml: e.target.innerHTML } : null)}
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dangerouslySetInnerHTML={{ __html: diffModal.newHtml }}
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style={{ fontFamily: 'SimSun, "Microsoft YaHei", serif', fontSize: '12pt', lineHeight: '1.5' }}
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></div>
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</div>
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</div>
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);
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})()}
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<div className="px-6 py-4 border-t border-slate-100 flex justify-end gap-3 bg-white">
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<button onClick={() => setDiffModal(null)} className="px-6 py-2 rounded-lg text-slate-600 font-medium hover:bg-slate-100">放弃修改</button>
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<button onClick={() => confirmAiInjection(diffModal.newHtml, diffModal.targetId)} className="px-6 py-2 rounded-lg bg-blue-600 text-white font-medium hover:bg-blue-700 shadow-sm flex items-center gap-2">
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128
工程分析/20260419_2159/实现方案.md
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128
工程分析/20260419_2159/实现方案.md
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@@ -0,0 +1,128 @@
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# 实现方案
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## 修改文件
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- `src/pages/ReportEditor.tsx`
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- `package.json` / `package-lock.json`(已安装 `diff` 库)
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## 依赖安装
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```bash
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npm install diff --save
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```
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已完成。
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## 修改 1:导入 diff 库 + 增加辅助函数
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在 `ReportEditor.tsx` 顶部 imports 区域增加:
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```tsx
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import { diffChars } from 'diff';
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```
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在组件内部增加辅助函数(建议放在 `checkAiRegions` 之后):
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```tsx
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const stripHtml = (html: string): string => {
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const tmp = document.createElement('div');
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tmp.innerHTML = html.replace(/<\/p>/gi, '</p>\n').replace(/<br\s*\/?>/gi, '\n');
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return (tmp.innerText || tmp.textContent || '').trim();
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};
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const computeDiffHtml = (oldText: string, newText: string, side: 'left' | 'right'): string => {
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const diffs = diffChars(oldText, newText);
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let html = '';
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for (const part of diffs) {
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let value = part.value.replace(/</g, '<').replace(/>/g, '>').replace(/\n/g, '<br>');
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if (side === 'left' && part.removed) {
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html += `<span class="diff-removed" style="background-color:#fee2e2;color:#dc2626;text-decoration:line-through;">${value}</span>`;
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} else if (side === 'right' && part.added) {
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html += `<span class="diff-added" style="background-color:#dcfce7;color:#16a34a;font-weight:500;">${value}</span>`;
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} else if (!part.added && !part.removed) {
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html += value;
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}
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}
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return html;
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};
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```
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## 修改 2:强化 systemPrompt(约 line 922)
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在修改模式的 systemPrompt 中增加第 7 条:
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```
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7. ⚠️ 绝对强制:无论用户的修改指令多么微小,你都必须返回 updatedHtml。绝对不允许只返回 reply 而不返回 updatedHtml!
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```
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## 修改 3:前端校验兜底(约 line 955)
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在 `if (responseJson.updatedHtml && aiModifyEnabled)` 分支之前,增加兜底提示:
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```tsx
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if (aiModifyEnabled && !responseJson.updatedHtml) {
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setChatMessages(prev => [...prev, { id: Date.now().toString(), role: 'model', content: '【系统提示】AI 未能生成修改内容,请尝试重新描述您的需求。' }]);
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}
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```
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## 修改 4:diffModal 渲染逻辑(约 line 2612-2653)
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**原代码**:
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左侧直接渲染 `diffModal.originalHtml`,右侧直接渲染 `diffModal.newHtml`。
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**新代码**:
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在 `diffModal` 渲染区域内部,计算 diff 高亮 HTML:
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```tsx
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{diffModal && diffModal.isOpen && (
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<div className="fixed inset-0 bg-slate-900/40 backdrop-blur-sm z-[100] flex items-center justify-center p-4">
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{/* ... 弹窗头部 ... */}
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{(() => {
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const oldText = stripHtml(diffModal.originalHtml);
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const newText = stripHtml(diffModal.newHtml);
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const leftDiffHtml = computeDiffHtml(oldText, newText, 'left');
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const rightDiffHtml = computeDiffHtml(oldText, newText, 'right');
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return (
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<div className="flex-1 overflow-hidden flex gap-4 p-6 bg-slate-100">
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{/* 左侧:原始版本 + 删除高亮 */}
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<div className="flex-1 flex flex-col bg-white border border-red-200 rounded-xl overflow-hidden shadow-sm">
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<div className="bg-red-50 px-3 py-2 text-xs font-bold text-red-600 border-b border-red-100 uppercase tracking-wider">原始版本</div>
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<div className="p-4 flex-1 overflow-y-auto opacity-70 cursor-not-allowed custom-scrollbar"
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dangerouslySetInnerHTML={{ __html: leftDiffHtml }}></div>
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</div>
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{/* 右侧:AI 版本 + 新增高亮 */}
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<div className="flex-1 flex flex-col bg-white border border-green-400 rounded-xl overflow-hidden shadow-md relative">
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<div className="bg-green-50 px-3 py-2 text-xs font-bold text-green-700 border-b border-green-200 uppercase tracking-wider flex justify-between">
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<span>AI 提议版本 (可直接编辑)</span>
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<span className="text-[10px] bg-green-200 px-1.5 py-0.5 rounded text-green-800">编辑态</span>
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</div>
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<div
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className="p-4 flex-1 overflow-y-auto outline-none custom-scrollbar"
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contentEditable
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suppressContentEditableWarning
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onBlur={(e) => setDiffModal(prev => prev ? { ...prev, newHtml: e.target.innerHTML } : null)}
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dangerouslySetInnerHTML={{ __html: rightDiffHtml }}
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style={{ fontFamily: 'SimSun, "Microsoft YaHei", serif', fontSize: '12pt', lineHeight: '1.5' }}
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></div>
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</div>
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</div>
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);
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})()}
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{/* ... 底部按钮 ... */}
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</div>
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)}
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```
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**注意**:使用 IIFE(立即执行函数)在 JSX 中计算 diff,避免在渲染外额外处理。
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## 修改 5:confirmAiInjection 清理 diff 高亮(约 line 981)
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在注入前去掉 diff 高亮 span:
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```tsx
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const confirmAiInjection = (newHtml: string, regionId: string) => {
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if (!editorRef.current) return;
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// 去掉 diff 高亮 span,避免污染编辑器
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const cleanHtml = newHtml.replace(/<span class="diff-(added|removed)"[^>]*>(.*?)<\/span>/gi, '$2');
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const targetContent = editorRef.current.querySelector(`.ai-region[data-ai-id="${regionId}"] .ai-content`) as HTMLElement;
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if (targetContent) {
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targetContent.focus();
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const sel = window.getSelection();
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const range = document.createRange();
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range.selectNodeContents(targetContent);
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sel?.removeAllRanges();
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sel?.addRange(range);
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document.execCommand('insertHTML', false, cleanHtml);
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// ... 后续动画和保存逻辑不变
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```
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49
工程分析/20260419_2159/测试方案.md
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49
工程分析/20260419_2159/测试方案.md
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# 测试方案
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## 测试环境
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- 浏览器访问 `http://localhost:4173/`
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- 进入「图文报告生成」→ 新建报告
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## 测试用例 1:微小指令也能弹窗
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**步骤**:
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1. 第一次发送修改指令,确认 diff 弹窗正常弹出
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2. 点击「确认并写入报告」
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3. 第二次发送非常简短的微调指令,如"把 5x3x2 改成 5x3x10"
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**预期结果**:
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- 第二次也应弹出 diff 弹窗
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- 如果未弹窗,聊天面板应显示【系统提示】AI 未能生成修改内容
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## 测试用例 2:diff 高亮显示
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**步骤**:
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1. 编辑器中 AI 可编辑区域写入一段内容
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2. 发送修改指令,让 AI 修改其中几个字词
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||||
3. 观察 diff 弹窗
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||||
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**预期结果**:
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- 左侧「原始版本」中,被 AI 删除的字词显示红色背景 + 删除线
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- 右侧「AI 提议版本」中,AI 新增的字词显示绿色背景
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- 未变更的内容正常显示,无高亮
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## 测试用例 3:确认注入后无高亮残留
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**步骤**:
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1. 在 diff 弹窗中点击「确认并写入报告」
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2. 观察编辑器中 AI 区域的内容
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**预期结果**:
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- 编辑器中不应有红色/绿色的 diff 高亮 span
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- 文字格式正常(宋体 12pt)
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## 测试用例 4:编译与部署
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**步骤**:
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1. 执行 `npm run build`
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2. 确认无 TypeScript 编译错误
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3. 预览服务正常启动并返回 200
|
||||
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||||
**预期结果**:
|
||||
- `vite build` 成功完成
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- 预览页面可正常访问
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35
工程分析/20260419_2159/需求分析.md
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35
工程分析/20260419_2159/需求分析.md
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# 需求分析
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## 时间戳
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2026-04-19 21:59
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## 需求来源
|
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用户反馈两个体验问题:
|
||||
1. 第二次输入需求时,没有弹出 AI 修改确认框
|
||||
2. AI 修改确认框的左侧和右侧希望增加文档对比(Diff)功能,高亮显示新增/删除的内容
|
||||
|
||||
## 问题 1:第二次输入未弹框
|
||||
|
||||
**现象**:第一次 AI 修改正常弹出 diff 弹窗,第二次输入微调指令(如"把 5x3x2 变成 5x3x10")后没有弹窗。
|
||||
|
||||
**根因分析**:
|
||||
1. 大模型在微小修改指令时可能"偷懒",只返回 `reply` 而不返回 `updatedHtml`
|
||||
2. 当前逻辑 `if (responseJson.updatedHtml && aiModifyEnabled)` 会跳过弹窗
|
||||
3. 用户不知道发生了什么,没有反馈
|
||||
|
||||
## 问题 2:缺少文档对比(Diff)
|
||||
|
||||
**现象**:diff 弹窗左侧和右侧只是简单渲染两段 HTML,无法直观看到 AI 具体修改了哪些字词。
|
||||
|
||||
**根因分析**:
|
||||
- 当前实现使用 `dangerouslySetInnerHTML` 直接渲染原始 HTML 和 AI HTML
|
||||
- 没有使用差异比对算法来标记变更
|
||||
|
||||
## 解决方向
|
||||
1. **强化 systemPrompt**:明确要求"无论指令多小都必须返回 updatedHtml"
|
||||
2. **前端校验兜底**:如果修改模式下未返回 updatedHtml,在聊天面板给出明确提示
|
||||
3. **引入 diff 库**:使用 `diff` 库进行文本差异比对
|
||||
4. **左右两侧 diff 高亮**:
|
||||
- 左侧(原始版本):删除的内容标红(红色背景 + 删除线)
|
||||
- 右侧(AI 版本):新增的内容标绿(绿色背景)
|
||||
5. **注入前清理**:`confirmAiInjection` 注入前去掉 diff 高亮 span,避免污染编辑器
|
||||
34
工程分析/经验记录.md
34
工程分析/经验记录.md
@@ -880,3 +880,37 @@ if (aiRegion && targetRegionEl) {
|
||||
**D. 后续如何避免问题**
|
||||
- 在 `contentEditable` 环境中修改内容时,**优先使用 `Range.selectNodeContents` + `execCommand('insertHTML')` 而非直接 `innerHTML` 赋值**,前者能让浏览器原生撤销/重做栈正常工作。
|
||||
- 当大模型返回的 HTML 缺少必要的内联样式时,应在**前端后处理阶段**统一注入样式,而不是依赖大模型生成完整的样式代码(大模型对样式生成的稳定性较差)。
|
||||
|
||||
|
||||
---
|
||||
|
||||
## 记录 37:AI 二次修改未弹窗 + diff 弹窗增加文档对比高亮
|
||||
|
||||
**A. 具体问题**
|
||||
1. 第一次 AI 修改正常弹出 diff 弹窗,第二次输入微调指令(如"把 5x3x2 变成 5x3x10")后没有弹窗。
|
||||
2. diff 弹窗左侧和右侧只是简单渲染两段 HTML,无法直观看到 AI 具体修改了哪些字词。
|
||||
|
||||
**B. 产生问题原因**
|
||||
1. **未弹窗**:大模型在微小修改指令时可能"偷懒",只返回 `reply` 而不返回 `updatedHtml`。当前逻辑 `if (responseJson.updatedHtml && aiModifyEnabled)` 会跳过弹窗,用户没有任何反馈。
|
||||
2. **无对比**:没有使用差异比对算法来标记变更,用户只能通过肉眼对比左右两侧发现差异。
|
||||
|
||||
**C. 解决问题方案**
|
||||
1. **强化 systemPrompt**:增加第 8 条:「⚠️ 绝对强制:无论用户的修改指令多么微小,你都必须返回 updatedHtml。绝对不允许只返回 reply 而不返回 updatedHtml!」
|
||||
2. **前端校验兜底**:在 `updatedHtml` 处理分支前增加:
|
||||
```ts
|
||||
if (aiModifyEnabled && !responseJson.updatedHtml) {
|
||||
setChatMessages(prev => [...prev, { id: Date.now().toString(), role: 'model', content: '【系统提示】AI 未能生成修改内容,请尝试重新描述您的需求。' }]);
|
||||
}
|
||||
```
|
||||
3. **引入 diff 库**:`npm install diff`,使用 `diffChars` 进行字符级差异比对。
|
||||
4. **左右两侧 diff 高亮**:
|
||||
- 左侧(原始版本):删除的内容标红(`background-color:#fee2e2; color:#dc2626; text-decoration:line-through;`)
|
||||
- 右侧(AI 版本):新增的内容标绿(`background-color:#dcfce7; color:#16a34a;`)
|
||||
5. **注入前清理**:`confirmAiInjection` 中去掉 diff 高亮 span:
|
||||
```ts
|
||||
const cleanHtml = newHtml.replace(/<span class="diff-(added|removed)"[^>]*>(.*?)<\/span>/gi, '$2');
|
||||
```
|
||||
|
||||
**D. 后续如何避免问题**
|
||||
- 大模型对「必须返回某字段」的遵循度与 prompt 中该字段的强调程度正相关。对于关键输出字段,应在 systemPrompt 中使用「绝对强制」「绝对不允许」等最强措辞,并在前端增加缺失校验兜底。
|
||||
- 在 diff 对比场景中,**纯文本层面的差异比对**比 HTML 层面的比对更可靠。应先将 HTML strip 为纯文本,再做 diff,最后把结果渲染为 HTML。
|
||||
|
||||
Reference in New Issue
Block a user