React 列表渲染与状态管理：实现单个卡片精准删除

import React, { useState } from 'react';
import styled from 'styled-components'; // 假设已导入 styled-components

function Cards() {
    const carddata = [/* 初始卡片数据数组，内容已在问题中给出 */];
    const [cardinfo, setCardinfo] = useState(carddata);

    // 错误的删除逻辑
    const handleClear = () => {
        setCardinfo([]); // 问题所在：将状态设置为一个空数组
    };

    return (
        <Main>
            <div className='whole-cards'>
                {cardinfo.map((cardItem) => ( // 建议使用更清晰的变量名，如 cardItem
                    <div className='card-body' key={cardItem.name}> {/* key 属性很重要 */}
                        {/* ... 卡片内容展示 */}
                        <button onClick={handleClear}>Not Interested</button> {/* 问题所在：所有按钮都调用相同的无参数函数 */}
                    </div>
                ))}
            </div>
        </Main>
    );
}
// ... styled-components 的样式定义和组件导出

import React, { useState } from 'react';
import styled from 'styled-components';

function Cards() {
    const carddata = [{
        name: "Best Of Paris In 7 Days Tour",
        image: "https://res.cloudinary.com/dgpmofizn/image/upload/v1684017660/img-1_xli1dp.jpg",
        description: "Paris is synonymous with the finest things that culture can offer — in art, fashion, food, literature, and ideas. On this tour, your Paris-savvy Rick Steves guide will immerse you in the very best of the City of Light: the masterpiece-packed Louvre and Orsay museums, resilient Notre-Dame Cathedral, exquisite Sainte-Chapelle, and extravagant Palace of Versailles. You'll also enjoy guided neighborhood walks through the city's historic heart as well as quieter moments to slow down and savor the city's intimate cafés, colorful markets, and joie de vivre. Join us for the Best of Paris in 7 Days!",
        price:"$1,995"
    },{
        name: 'Best Of Ireland In 14 Days Tour',
        image: "https://res.cloudinary.com/dgpmofizn/image/upload/v1684017660/img-3_tyhpum.jpg",
        description: "Rick Steves' Best of Ireland tour kicks off with the best of Dublin, followed by Ireland's must-see historical sites, charming towns, music-filled pubs, and seaside getaways — including Kinsale, the Dingle Peninsula, the Cliffs of Moher, the Aran Islands, Galway, Connemara, Giant's Causeway, and the compelling city of Belfast. All along the way, Rick's guides will share their stories to draw you in to the Emerald Isle, and the friendliness of the people will surely steal your heart. Join us for the Best of Ireland in 14 Days!",
        price:"$3,895"
    },{
        name: 'Best Of Salzburg & Vienna In 8 Days Tour',
        image: "https://res.cloudinary.com/dgpmofizn/image/upload/v1684017660/img-4_twyhns.jpg",
        description: "Let's go where classical music, towering castles, and the-hills-are-alive scenery welcome you to the gemütlichkeit of Bavaria and opulence of Austria's Golden Age. Your Rick Steves guide will bring this region's rich history and culture to life in festive Munich, Baroque Salzburg, sparkling Lake Hallstatt, monastic Melk, the blue Danube, and royal Vienna — with cozy villages and alpine vistas all along the way. Join us for the Best of Munich, Salzburg & Vienna in 8 Days",
        price:"$2,695"
    }, {
        name: 'Best Of Poland In 10 Days Tour',
        image: "https://res.cloudinary.com/dgpmofizn/image/upload/v1684017660/img-2_ss0wiu.jpg",
        description: "Starting in the colorful port city of Gdańsk, you'll escape the crowds and embrace the understated elegance of ready-for-prime-time Poland for 10 days. With an expert Rick Steves guide at your side, you'll experience mighty Malbork castle, the cobbly-cute village of Toruń, Poland's contemporary capital of Warsaw, the spiritual Jasna Góra Monastery, and charming Kraków — Poland's finest city. In this land of surprises — so trendy and hip, yet steeped in history — there's so much to discover. Join us for the Best of Poland in 10 Days!",
        price:"$2,595"
    }];

    const [cardinfo, setCardinfo] = useState(carddata);

    // 修正后的删除逻辑
    const handleClear = (cardToRemove) => {
        // 过滤掉匹配的卡片，返回一个新数组
        // 这里使用 cardToRemove.name 作为唯一标识进行过滤
        setCardinfo(cardinfo.filter(item => item.name !== cardToRemove.name));
    };

    return (
        <Main>
            <div className='whole-cards'>
                {cardinfo.map((cardItem) => ( // 使用 cardItem 变量名更清晰
                    <div className='card-body' key={cardItem.name}> {/* key 属性应是稳定且唯一的 */}
                        <img src={cardItem.image} alt={cardItem.name} /> {/* 添加 alt 属性提升可访问性 */}
                        <span>{cardItem.price}</span>
                        <h3>{cardItem.name}</h3>
                        <p>{cardItem.description}</p>
                        <button onClick={() => handleClear(cardItem)}>Not Interested</button>
                    </div>
                ))}
            </div>
        </Main>
    );
}

const Main = styled.