事件绑定

const App = props => {
  let alerts = () => {
    alert(props.time)
  }
  let is = {color:props.color? "red" : "blue"}
  return <div onClick={alerts} style={is}>{props.time},</div>;
}
let Apps = ()=>{
  return <div>
    {arrTime.map(item => <App key={item.time} time={item.time} color={item.color} />)}
  </div>
}