点赞

1.绑定事件

<img :src="item.like?'./images/zanhou.png':'./images/zanqian.png'" alt="" 
@click="handleClick(item._id)"/></td>

2.方法

  handleClick(id){
    var movies=this.movies;
    var item=movies.find(item=>item._id==id);
    if(item.like){
      item.like=false;
    }else{
      item.like=true;
    }
    this.movies=movies;
    $.ajax({
      url:"http://localhost:8080/doLike",
      method:"post",
      data:{
        id,
        like:item.like
      }
    }).then(res=>{
      console.log(res);
    })
  }

3.添加

4.处理点赞路由

router.post("/doLike",async ctx=>{
    console.log(ctx.request.body);
    var{id,like}=ctx.request.body;
    await Top250Model.updateOne({_id:id},{$set:{like:like}})
})