import React, { Component } from 'react'
class App extends Component {
constructor(props) {
super(props);
this.state = {
checkboxItems:[
{content:"吃",checked:false},
{content:"喝",checked:false},
{content:"玩",checked:false},
{content:"乐",checked:false},
]
}
}
render() {
return (
<div>
{
this.state.checkboxItems.map((ele,index)=>{
return (
<span key={index}>
<input type="checkbox" name="" value={index} checked={ele.checked} onChange={()=>this.getVal(index)}/><span>{ele.content}</span>
</span>
)
})
}
</div>
);
}
getVal = (index)=>{
//复制原来的数组
var items = [...this.state.checkboxItems]
//checked取反
items[index].checked =!items[index].checked
this.setState({
//更新checkboxItems全部选项
checkboxItems:items
})
}
}
export default App;