1. import React,{FC} from "react"
    2. import "./cmtitem.scss"
    3. type IProps={
    4.     id:number,
    5.     user:string,
    6.     content:string
    7. }
    8. const Cmittem:FC<IProps>=(props)=>{
    9.     const clickHandler=(event:React.MouseEvent)=>{
    10.            console.log("事件触发了",event)
    11.     }
    12.     return <div className="item" key="item.id">
    13.     <h1 className="title">评论人：{props.user}</h1>
    14.     <div className="content">{props.content}</div>
    15.     <button onClick={clickHandler}>点击按钮触发事件e</button>
    16.     </div>
    17. }
    19. export default  Cmittem

    这里的关键是event对象的类型是event:React.MouseEvent