| 指令 | 描述 |
|---|
| v-if | 条件性的渲染某元素，判定为true时渲染,否则不渲染 |
| v-if-else | |
| v-else | |
| v-show | 根据条件展示某元素，区别在于切换的是display属性的值 |
案例需求
完整代码
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Vue-指令-案例</title>
<script src="js/vue.js"></script>
</head>
<body>
<div id="app">
<table border="1" 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 align="center" v-for="(user,index) in users">
<td>{{index + 1}}</td>
<td>{{user.name}}</td>
<td>{{user.age}}</td>
<td>
<span v-if="user.gender == 1">男</span>
<span v-if="user.gender == 2">女</span>
</td>
<td>{{user.score}}</td>
<td>
<span v-if="user.score >= 85">优秀</span>
<span v-else-if="user.score >= 60">及格</span>
<span style="color: red;" v-else>不及格</span>
</td>
</tr>
</table>
</div>
</body>
<script>
new Vue({
el: "#app",
data: {
users: [{
name: "Tom",
age: 20,
gender: 1,
score: 78
},{
name: "Rose",
age: 18,
gender: 2,
score: 86
},{
name: "Jerry",
age: 26,
gender: 1,
score: 90
},{
name: "Tony",
age: 30,
gender: 1,
score: 52
}]
},
methods: {
},
})
</script>
</html>
