<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Vue的方法_侠课岛(9xkd.com)</title>
<script src="https://unpkg.com/vue@next"></script>
</head>
<body>
<div id="counter" class="demo">
<p>Counter: {{ counter }}</p>
</div>
<script>
const app = Vue.createApp({
data() {
return { count: 4 }
}
})
const vm = app.mount('#counter')
console.log(vm.$data.count) // => 4
console.log(vm.count) // => 4
// 修改 vm.count 的值也会更新 $data.count
vm.count = 5
console.log(vm.$data.count) // => 5
// 反之亦然
vm.$data.count = 6
console.log(vm.count) // => 6
</script>
<style>
.demo {
font-family: sans-serif;
border: 1px solid
border-radius: 2px;
padding: 20px 30px;
margin-top: 1em;
margin-bottom: 40px;
user-select: none;
overflow-x: auto;
}
</style>
</body>
</html>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Vue的方法_侠课岛(9xkd.com)</title>
<script src="https://unpkg.com/vue@next"></script>
</head>
<body>
<div id="counter" class="demo">
<p>Counter: {{ counter }}</p>
</div>
<script>
const app = Vue.createApp({
data() {
return { count: 4 }
},
methods: {
increment() {
// `this` 指向该组件实例
this.count++
}
}
})
const vm = app.mount('#counter')
console.log(vm.count) // => 4
vm.increment()
console.log(vm.count) // => 5
</script>
<style>
.demo {
font-family: sans-serif;
border: 1px solid
border-radius: 2px;
padding: 20px 30px;
margin-top: 1em;
margin-bottom: 40px;
user-select: none;
overflow-x: auto;
}
</style>
</body>
</html>
