props 在render中使用

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <script src="https://cdn.jsdelivr.net/npm/vue@2.5.17/dist/vue.js"></script>
</head>

    <body>
        <div id="demo">
           <button @click="switchshow">点击切换图片</button> {{show}}
                <child :show="show">
                </child>
        
        </div>
    
        <script>
            Vue.component('child',{
                props:['show'],
                render:function(createElement){
                        var imgsrc
                        if(this.show){
                            imgsrc='img/01.jpg'
                        }else{
                            imgsrc='img/02.jpeg'
                        }
                return createElement('img',{
                    attrs:{
                        src:imgsrc,
                        sss:"sss"
                    },
                    style:{
                        height:'200px',
                    }
                })        
                }
            })
            var app = new Vue({
                el: '#demo',
                data: {
                    show:true
                },
                methods:{
                    switchshow:function(){
                        this.show=!this.show
                    }
                }
            }) 
        </script>
    </body>

</html>
呈现结果