Vue组件渲染与更新实现过程浅析

`<p>{<!--{cke_protected}{C}%3C!%2D%2D%20%2D%2D%3E-->{message}}</p>`

with(this){return _c('p',[_v(_s(message))])}
// _c 表示 createElement   也就是h函数  返回vnode 
// _v 表示 createTextVNode
// _s 表示 toString

`<p>{<!--{cke_protected}{C}%3C!%2D%2D%20%2D%2D%3E-->{flag ? message : 'no message found'}}</p>`

with(this){<!--{cke_protected}{C}%3C!%2D%2D%20%2D%2D%3E-->return _c('p',[_v(_s(flag ? message : 'no message found'))])}

`<div id="div1" class="container">
	<img :src="imgUrl"/>
</div>`

with(this){
	return _c('div',
			{staticClass:"container",attrs:{"id":"div1"}},
			[_c('img',{attrs:{"src":imgUrl}})]
			)
}

`<div>
    <p v-if="flag === 'a'">A</p>
    <p v-else>B</p>
</div>`

with(this){
	return _c('div',[(flag === 'a')?_c('p',[_v("A")]):_c('p',[_v("B")])])
}

`<ul>
    <li v-for="item in list" :key="item.id">{{item.title}}</li>
</ul>`

with(this){
	return _c('ul',_l((list),
		function(item){return _c('li',{key:item.id},
		[_v(_s(item.title))])}),0
		)
}

`<button @click="clickHandler">submit</button>`

with(this){return _c('button',{on:{"click":clickHandler}},[_v("submit")])}

`<input type="text" v-model="name">`

with(this){
return _c('input',
	{directives:[{name:"model",rawName:"v-model",value:(name),expression:"name"}],attrs:{"type":"text"},domProps:{"value":(name)},on:{"input":function($event){if($event.target.composing)return;name=$event.target.value}}}
	)
}