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[TOC]

#### 1.自定義指令詳解directive
	
  官方文檔：https://cn.vuejs.org/v2/guide/custom-directive.html
  
	<div id="hdcms">
        <span v-star="color">標題</span>
        <input type="text" v-model="color" v-focus>
        <h1 v-hide="false">hdphp</h1>
    </div>
    <script>
        new Vue({
            el: '#hdcms',
            data: {
                title: 'houdunren.com',
                color: 'red'
            },
            directives: {
                star(el, bind){
                    var color = bind.value ? bind.value : 'red';
                    el.style.cssText = "color:" + color;
                },
                //bind update
                focus: {
                    inserted(el, bind){
                        el.focus();
                    }
                },
                hide(el, bind){
                    console.log(bind);
                    if (bind.value) {
                        el.style.cssText = "display:none";
                    }
                }
            }
        });
    </script>
  
                    
                
        
                
            
        
                
    
                
    
                
        
                
    
                

                







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