react 怎么实现删除功能

<li key= {index} onClick={this.handleItemClick.bind(this, index)}>{value}</li>

// 列表点击事件
   handleItemClick(index) {
       const list = [...this.state.list];
       list.splice(index, 1);
       this.setState({
           list: list
       })
   }

import React, {Component, Fragment} from 'react';
class TodoList extends Component {
   constructor(props) {
       super(props);
       this.state = {
           inputValue: '',
           list: []
       }
   }
   handleInputChange(e) {
       this.setState({
           inputValue: e.target.value
       })
   }
   // 松开键盘会触发该事件
   handleKeyUp(e) {
       // 判断是不是点的回车键
       if (e.keyCode === 13) {
           const list = [...this.state.list, this.state.inputValue];
           this.setState({
               list: list,
               inputValue: ''
           })
       }
   }
   // 列表点击事件
   handleItemClick(index) {
       const list = [...this.state.list];
       list.splice(index, 1);
       this.setState({
           list: list
       })
   }
   render() {
       return(
           <Fragment>
           <input value={this.state.inputValue} onChange={this.handleInputChange.bind(this)} onKeyUp={this.handleKeyUp.bind(this)}/>
           <ul>
               {
                   this.state.list.map((value,index) => {
                       return (
                       <li key= {index} onClick={this.handleItemClick.bind(this, index)}>{value}</li>
                       )
                   })
               }
           </ul>
           </Fragment>
               
       )
   }
}
export default TodoList;