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Vue实现留言板（实现增删改查）注意：自己引入Vue.js哦

news 2025/7/13 3:58:05

代码：

<!DOCTYPE html>
<html lang="en">
<head><meta charset="UTF-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><title>Document</title><script src="https://code.jquery.com/jquery-3.7.1.min.js" integrity="sha256-/JqT3SQfawRcv/BIHPThkBvs0OEvtFFmqPF/lYI/Cxo=" crossorigin="anonymous"></script><script src="../js/Vue.js"></script><style>*{margin: 0;padding: 0;}.content{max-width: 500px;margin: 30px auto;border: 1px solid #e5cc7f;padding: 20px;border-radius: 15px ;text-align: center;box-shadow: 1px 1px 20px #e5cc7f;}.inputkuang {margin: 10px 0;display: flex;input{flex: 8;font-size: 20px;padding: 5px 10px;box-sizing: border-box;}button{flex: 1;}}ul{display: flex;flex-direction: column;align-items: flex-start;li{width: 100%;list-style: none;padding: 10px;display: flex; align-items: center;box-sizing: border-box;span{&:nth-child(1){flex: 2;font-size: 14px;}&:nth-child(2){flex: 9;overflow: hidden;display: -webkit-box;text-overflow: ellipsis;-webkit-box-orient: vertical;-webkit-line-clamp: 2;}&:nth-child(3){flex: 6;font-size: 12px;}&:nth-child(4){flex: 2;padding: 6px 10px;background-color: #ccc;font-size: 13px;cursor: pointer;}&:nth-child(5){flex: 1;cursor: pointer;font-size: 12px;}}.cha{cursor: pointer;}}}</style>
</head>
<body><div class="content" id="app"><h1>留言版</h1><div class="inputkuang"><input type="text" v-model="msg"><button @click="add()">添加</button></div><ul><li v-for="(item,index) in list" :key="index"><span>{{item.name}}说:</span><span>{{item.content}}</span><span>{{item.date}}</span><span @click="edit(item)">修改</span><span @click="del(item.id)">X </span></li></ul></div><script>let vm = new Vue({el:'#app',data() {return {msg:'',list:[{id:1,name:'张三',content:'1',date:this.sj(),},{id:2,name:'张三',content:'2',date:this.sj(),},{id:3,name:'张三',content:'3',date:this.sj(),},{id:4,name:'张三',content:'4',date:this.sj(),},{id:5,name:'张三',content:'5',date:this.sj(),},]}},// 在这事件处理函数methods: {sj(){let date  = new Date()let sj = date.toLocaleDateString().replace('/','-').replace('/','-')+ ' ' + date.toLocaleTimeString() return sj},add(){let date  = new Date()let sjc = date.getTime()this.list.push({id:sjc,name:'张三',content:this.msg,date:this.sj(),})},del(id){let index = this.list.findIndex(item=>item.id==id)this.list.splice(index,1)},edit(obj){let content = prompt('请输入要修改的值',`${obj.content}`)if (content == "") return alert("修改内容不能为空")this.list.forEach((item, i) => {if (item.id == obj.id && content!='') {item.content = content;}});}},})</script>
</body>
</html>

效果图：