//可以通过 this.$refs将数据用子组件函数传递，在子组件函数接收数据，达到修改数据的目的
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
</head>
<body>
<div id="app">
<div>
<input type="text" v-model.number="num1" /> +
<input type="text" v-model.number="num2" />
<button @click="handlePlus">=</button>
</div>
<todo-input ref="todoInputRef"></todo-input>
</div>
<script src="./lib/vue.global.js"></script>
<script>
</script>
<script>
const todoInput = {
template: `
<div>两个数字相加之和: {{ sum }}</div>
<div class="input">
<input
type="text"
placeholder="请输入新待办事项"
ref="inputRef"
:value="modelValue"
@input="handleAdd"
>
<button class="add" @click="handleAdd">添加</button>
</div>
`,
data() {
return {
message: 'Hello',
hobbies: [1,2,3,4,5],
sum: 0,
}
},
methods: {
plus(num1, num2) {
this.sum = num1 + num2
},
},
}
Vue
.createApp({
data() {
return {
inputValue: '',
num1: 5,
num2: 7,
}
},
methods: {
handlePlus() {
this.$refs.todoInputRef.plus(this.num1, this.num2)
},
},
})
.component('todo-input', todoInput)
.mount('#app')
</script>
</body>
</html>
)
:Meanshift和Camshift算法)
