<Fragment>
<div>
<label htmlFor="insertArea">input value</label>
<input
value={this.state.inputValue}
id="insertArea"
className='input'
onChange={this.handleInputChange.bind(this)}/>
<button onClick={this.handleBtnClick.bind(this)}>submit</button>
</div>
<ul>
{
this.state.list.map((item, index) => {
return <li key={index}
onClick={this.handleItemDelete.bind(this, index)}
dangerouslySetInnerHTML={{__html: item}}
>
</li>
})
}
</ul>
</Fragment>
label中的聚焦使用，htmlFor(id)
dangerouslySetInnerHTML，网页显示语义化标签
