<div id="root">
    <h2>當前的n值是<span v-text="n"></span></h2>
    <h2>放大10倍后的n值是：<span v-big="n"></span></h2>
    <button @click="n++">點我n+1</button>
</div>

<script type="text/javascript">
    Vue.config.productionTip = false

    //創(chuàng)建vue實例
    new Vue({
        el: "#root",
        data: {
            n:1
        },
        directives:{
            /*big:function () {
            }*/
            //big函數(shù)合適會被調(diào)用？
            //1、指令與函數(shù)成功綁定時（一上來）
            //2、指令所在的模板被重新解析時
            big(element,binding){
                element.innerHTML = binding.value * 10
            }
        }
    })
</script>

<div id="root">
    <input type="text" v-bind:value="n"><br/>
    <input type="text" v-fbind:value="n"><br/>
    <button @click="n++">點我n+1</button>
</div>

<script type="text/javascript">
    Vue.config.productionTip = false

    //創(chuàng)建vue實例
    new Vue({
        el: "#root",
        data: {
            n:1
        },
        directives:{
            fbind:{
                bind(element,binding){
                    //指令與函數(shù)成功綁定時（一上來）
                    console.log("bind");
                    element.value = binding.value
                },
                inserted(element,binding){
                    //指令所在元素被插入頁面時
                    console.log("inserted");
                    element.focus()
                },
                update(element,binding){
                    //指令所在元素被重新解析時
                    console.log("update");
                    element.value = binding.value
                }
            }
        }
    })
</script>

<h2>放大10倍后的n值是：<span v-big-number="n"></span></h2>

'big-number':function (element,binding){
	element.innerHTML = binding.value * 10
}

'big-number' (element,binding){
	element.innerHTML = binding.value * 10
}

directives:{
            fbind:{
                bind(element,binding){
                   	//此處的this是window
                    console.log("bind");
                    element.value = binding.value
                }
            }
        }

Vue.directive('big', function (element, binding) {
        element.innerHTML = binding.value * 10
    })

Vue.directive('fbind',{
        bind(element,binding){
            element.value = binding.value
        },
        inserted(element,binding){
            element.focus()
        },
        update(element,binding){
            element.value = binding.value
        }
    })

new Vue({
	directives:{
		指令名:配置對象
	}
})

new Vue({
	directives:{
		指令名:回調(diào)函數(shù)
	}
})