answer:Sure! Based on your description, I have outlined the frontend structure of the application using Next.js, TypeScript, React Hooks, and functional programming. To make it easy to understand and manage, I have broken down the application into components and pages. 1. Create a new Next.js project with TypeScript: ``` npx create-next-app your-project-name --typescript cd your-project-name ``` 2. Install Firebase and other necessary dependencies: ``` npm install firebase npm install @types/firebase ``` 3. Set up pages: - Create an `index.tsx` page that displays the gallery of dining halls with their respective average ratings. - Create a `[id].tsx` page under a `reviews` directory that shows the reviews for each specific dining hall. 4. Create components: - `components/DiningHallCard.tsx`: displays a single dining hall card with its average rating and image. - `components/Review.tsx`: displays a single review. - `components/AddReviewForm.tsx`: contains a form for users to add a rating and review. - `components/Navbar.tsx`: a navigation bar component for switching pages and displaying the login status and actions. Here are the code snippets for each file: `components/DiningHallCard.tsx` ```tsx import React from 'react'; import Link from 'next/link'; type DiningHallCardProps = { id: string; name: string; imageUrl: string; avgRating: number; }; const DiningHallCard: React.FC<DiningHallCardProps> = ({ id, name, imageUrl, avgRating }) => { return ( <div className="dining-hall-card"> <img src={imageUrl} alt={name} /> <h3>{name}</h3> <p>Average Rating: {avgRating.toFixed(1)}</p> <Link href={`/reviews/{id}`}> <a>View Reviews</a> </Link> </div> ); }; export default DiningHallCard; ``` `components/Review.tsx` ```tsx import React from 'react'; interface ReviewProps { user: string; rating: number; description: string; } const Review: React.FC<ReviewProps> = ({ user, rating, description }) => { return ( <div className="review"> <h4>{user}</h4> <p>Rating: {rating} stars</p> <p>{description}</p> </div> ); }; export default Review; ``` `components/AddReviewForm.tsx` ```tsx import React, { useState } from 'react'; interface AddReviewFormProps { onSubmit: (rating: number, description: string) => void; } const AddReviewForm: React.FC<AddReviewFormProps> = ({ onSubmit }) => { const [rating, setRating] = useState(0); const [description, setDescription] = useState(''); const handleSubmit = (event: React.FormEvent<HTMLFormElement>) => { event.preventDefault(); onSubmit(rating, description); }; return ( <form onSubmit={handleSubmit}> <fieldset> <label> Rating: <input type="number" value={rating} onChange={(e) => setRating(parseInt(e.target.value, 10))} /> </label> <label> Description: <textarea value={description} onChange={(e) => setDescription(e.target.value)} /> </label> </fieldset> <button type="submit">Submit</button> </form> ); }; export default AddReviewForm; ``` `components/Navbar.tsx` ```tsx import React from 'react'; import Link from 'next/link'; interface NavbarProps { userLoggedIn: boolean; } const Navbar: React.FC<NavbarProps> = ({ userLoggedIn }) => { return ( <nav> <Link href="/"> <a>Home</a> </Link> {userLoggedIn ? ( <> <span>Welcome, User!</span> <button>Logout</button> </> ) : ( <button>Login</button> )} </nav> ); }; export default Navbar; ``` `pages/index.tsx` ```tsx import React from 'react'; import Navbar from '../components/Navbar'; import DiningHallCard from '../components/DiningHallCard'; const dummyDiningHalls = [ { id: '1', name: 'Dining Hall 1', imageUrl: '...', avgRating: 4.5 }, { id: '2', name: 'Dining Hall 2', imageUrl: '...', avgRating: 3.8 }, ]; const Home = () => { return ( <div> <Navbar userLoggedIn={false} /> <h1>Cornell Dining Halls</h1> <div className="dining-halls-container"> {dummyDiningHalls.map((hall) => ( <DiningHallCard key={hall.id} {...hall} /> ))} </div> </div> ); }; export default Home; ``` `pages/reviews/[id].tsx` ```tsx import React from 'react'; import { useRouter } from 'next/router'; import Navbar from '../../components/Navbar'; import Review from '../../components/Review'; import AddReviewForm from '../../components/AddReviewForm'; const dummyReviews = [ { id: '1', user: 'User 1', rating: 4, description: 'Good food!' }, { id: '2', user: 'User 2', rating: 3, description: 'Average experience.' }, ]; const DiningHallReviews = () => { const router = useRouter(); const { id } = router.query; const onSubmit = (rating: number, description: string) => { console.log('Add review:', rating, description); }; return ( <div> <Navbar userLoggedIn={false} /> <h1>Reviews for Dining Hall {id}</h1> {dummyReviews.map((review) => ( <Review key={review.id} {...review} /> ))} <AddReviewForm onSubmit={onSubmit} /> </div> ); }; export default DiningHallReviews; ``` This frontend structure should provide a solid starting point for your Cornell dining halls web app. You will require a login/signup system, for which you can use Firebase authentication, and you will need to connect the frontend to Firestore to load actual data instead of the dummy data used in the examples. Remember to add your Firebase configuration to your project as well.

answer:Sure! I'll create a more detailed structure with an organized layout and better aesthetics. Let's start by updating the components with some CSS styles using `styled-jsx`. You may customize these styles further according to your design requirements. 1. Install `styled-jsx` package: ``` npm install styled-jsx ``` Next, create components and pages in the `/components` and `/pages` folders respectively. `components/DiningHallCard.tsx` ```tsx import React from 'react'; import Link from 'next/link'; interface DiningHallCardProps { id: string; name: string; imageUrl: string; avgRating: number; } const DiningHallCard: React.FC<DiningHallCardProps> = ({ id, name, imageUrl, avgRating }) => { return ( <div className="card"> <img src={imageUrl} alt={name} /> <h3>{name}</h3> <p>Average Rating: {avgRating.toFixed(1)}</p> <Link href={`/reviews/{id}`} passHref> <a className="review-link">View Reviews</a> </Link> <style jsx>{` .card { background-color: #f7f7f7; border-radius: 8px; border: 1px solid #eaeaea; box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1); padding: 16px; text-align: center; margin: 1rem; width: 240px; max-width: 100%; } img { height: 140px; border-radius: 8px; object-fit: cover; width: 100%; } .review-link { background-color: #0070f3; border-radius: 4px; color: white; display: inline-block; margin-top: 16px; padding: 8px 16px; text-decoration: none; } `}</style> </div> ); }; export default DiningHallCard; ``` `components/Review.tsx` ```tsx import React from 'react'; interface ReviewProps { user: string; rating: number; description: string; } const Review: React.FC<ReviewProps> = ({ user, rating, description }) => { return ( <div className="review"> <h4>{user}</h4> <p>Rating: {rating} stars</p> <p>{description}</p> <style jsx>{` .review { background-color: #f7f7f7; border-radius: 8px; border: 1px solid #eaeaea; box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1); padding: 16px; margin-bottom: 1rem; } `}</style> </div> ); }; export default Review; ``` `components/AddReviewForm.tsx` ```tsx import React, { useState } from 'react'; interface AddReviewFormProps { onSubmit: (rating: number, description: string) => void; } const AddReviewForm: React.FC<AddReviewFormProps> = ({ onSubmit }) => { const [rating, setRating] = useState(0); const [description, setDescription] = useState(''); const handleSubmit = (event: React.FormEvent<HTMLFormElement>) => { event.preventDefault(); onSubmit(rating, description); }; return ( <form onSubmit={handleSubmit}> <fieldset> <label htmlFor="rating-input

answer:吕布的三个义父的顺序是：丁原、董卓和袁绍。

answer:吕布的三个义父先后死亡顺序为：丁原、董卓和袁绍。