<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style>
table, td, th{
border:1px solid #ebebeb;
border-collapse:collapse;
text-align: center;
}
table {
width:500px;
}
</style>
<script src="https://cdn.jsdelivr.net/npm/vue"></script>
</head>
<body>
<div class="app">
<table>
<thead>
<tr>
<th style="line-height: 38px">全选
<input type="checkbox" v-model="allchecked" @click="changeState(allchecked)" style="zoom:200%;vertical-align: middle">
</th>
<th>name</th>
<th>age</th>
</tr>
</thead>
<tbody>
<tr v-for="item in list">
<td><input type="checkbox" v-model="item.checked" style="zoom:200%"></td>
<td>{{item.name}}</td>
<td>{{item.age}}</td>
</tr>
</tbody>
</table>
</div>
<script>
var list=[
{
name:'小明',
age: 23,
checked: false
},
{
name:'小红',
age: 2,
checked: true
},
{
name:'小蓝',
age: 23,
checked: true
},
{
name:'小bai',
age: 40,
checked: true
},
{
name:'王小二',
age: 18,
checked: false
}
]
new Vue({
el: '.app',
data: {
list,
allchecked:false
},
methods:{
changeState(val){
this.list.forEach(item => {
if (val === false) {
item.checked = true
} else {
item.checked = false
}
})
}
},
watch:{
list:{
handler(val) {
console.log('watch数组的变化',val)
var i = 0
this.list.forEach(item => {
if(item.checked === true) i++
})
if (i===this.list.length) {
this.allchecked = true
} else {
this.allchecked = false
}
},
deep:true
}
}
})
</script>
</body>
</html>
vue 实现选中和全选 小功能
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转载自blog.csdn.net/cofecode/article/details/79159827
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