<div id="app">
            <div class="container">
                <span>
                    <input type="text" v-model="searchString" placeholder="请输入搜索内容" class="input-box" />
                    <input type="button" class="btn" @click="handleSearch" value="百度一下"/>
              //实现按钮的搜索功能
                </span>
                <br>
                <br>
                <div class="item" v-for="article in articles_array">
                    <a :href="article.url" class="item-title">
                        {{article.title}}
                    </a>

                    <div class="item-thumbnail">
                        <a :href="article.url" class="item-title">
                        <img :src="article.image">
                        </a>
                    </div>
                </div>
            </div>
        </div>
        <script type="text/javascript">
            // 实例化一个Vue对象
            var app = new Vue({
                el: '#app',
                data: {
                    searchString: "",
                    // 数据模型
                    articles: [{
                            "title": "堪称神器的3款在线工具，你一定用得上！",
                            "url": "https://www.jianshu.com/p/e83e7999346b",
                            "image": "https://upload-images.jianshu.io/upload_images/11438996-56b25f32c9307b4b?imageMogr2/auto-orient/strip%7CimageView2/2/w/640/format/webp"
                        },
                        {
                            "title": "经典面试题：从 URL 输入到页面展现到底发生什么？",
                            "url": "https://www.jianshu.com/p/45ba3e0d0c7e",
                            "image": "https://upload-images.jianshu.io/upload_images/3973862-d90954249a6f6ccd.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/1000/format/webp"
                        },
                        {
                            "title": "如何免翻墙使用谷歌搜索和Chrome应用商店",
                            "url": "https://www.jianshu.com/p/484f8e6c88f6",
                            "image": "https://upload-images.jianshu.io/upload_images/858154-015a4b083685a3d1.jpg?imageMogr2/auto-orient/strip%7CimageView2/2/w/800/format/webp"
                        },
                        {
                            "title": "四款前所未有好用的黑科技APP，绝对的良心实用，赶紧告诉家人",
                            "url": "https://www.jianshu.com/p/2aec84d269fe",
                            "image": "https://upload-images.jianshu.io/upload_images/16042993-168b2cb17fd7ec0c?imageMogr2/auto-orient/strip%7CimageView2/2/w/640/format/webp"
                        },
                        {
                            "title": "坚持学英语的方法有哪些",
                            "url": "https://www.jianshu.com/p/0a6a61b0933c",
                            "image": "https://upload-images.jianshu.io/upload_images/3525704-c7293758fc59e56b.jpg?imageMogr2/auto-orient/strip%7CimageView2/2/w/960/format/webp"
                        }
                    ],
                    articles_array: []  //该变量用来存放搜索结果
                },
                created: function() {
                    this.articles_array = this.articles;  //初始化加载页面的时候,先存放全部数据
                },
                methods: {
                    handleSearch: function() {
                        var searchString = this.searchString;
                        var len = this.articles.length;
                        if (!searchString) {
                            this.articles_array = this.articles;//关键词为空,返回全部数据
                        }
                        searchString = searchString.trim().toLowerCase();
                        this.articles_array = this.articles_array.filter(function(item) {
                            if (item.title.toLowerCase().indexOf(searchString) != -1) {
                                return item;
                            }
                        })
                    }
                }

再加上相关样式

结果如图：

结果.png