屏幕截图 2024-04-07 003800

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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Vue前端框架练习</title>
<script src="./前端框架/vue.js"></script>

</head>
<body>
<div id="app">
<table border="1" align="center" cellspacing="0" width="60%">
<tr>
<th>编号</th>
<th>姓名</th>
<th>年龄</th>
<th>性别</th>
<th>成绩</th>
<th>等级</th>
</tr>
<tr v-for="(item,index) in user" >
<td>{{index+1}}</td>
<td>{{item.name}}</td>
<td>{{item.age}}</td>
<td v-if="item.gender==1"></td>
<td v-else></td>
<td>{{item.score}}</td>
<td v-if="item.score>80">优秀</td>
<td v-else>及格</td>
</tr>
</table>
</div>
</body>
<script>
new Vue({
el:"#app",
data: {
user:[{
name :"Tom",
age:20,
gender: 1,
score:78
},{
name :"Rose",
age:18,
gender: 2,
score:98
},{
name :"Jerry",
age:26,
gender: 2,
score:77
}]
},
})
</script>
</html>

Vue生命周期

image-20240407011438041

生命周期指一个程序从创建到销毁的整个过程