jQuery attr方法-获得修改元素属性值

   <div>
    <span class="is-Attention" data-isAttention="'+item.isAttention+'" data-userid="'+item.userid+'" data-nickname="'+item.nickname+'" >'+(item.isAttention==1? "已关注" : "关注")+'</span>
   </div>
 
    //关注
            $(".is-Attention").click(function(){
              var that = this
              var AttentionVariable=$(that).attr("data-isattention")
              var userid=$(this).attr("data-userid")
              var nickname=$(this).attr("data-nickname")
              if(AttentionVariable==0){
                sendReq("addAttention","post","/shop/userAttention/query",{attentonuserid:userid,attentonusername:nickname},function(res){
                  // console.log(res)
                  if(res.status==1){
                    // $(that).addClass("ele-hidden")
                    // $(that).siblings(".revenue-ranking-followed").removeClass("ele-hidden")
                    $(that).text("已关注")
                    //把属性data-isattention的值修改为1
                    $(that).attr("data-isattention","1")
                    layer.msg("关注成功",{icon:1})
                  }else{
                    layer.msg("关注失败",{icon:2})
                  }
                })
              }else{
                //取消关注
                sendReq("cancelAttention","post","/shop/userAttention/query",{attentonuserid:userid},function(res){
                  // console.log(res)
                  if(res.status==1){
                    layer.msg("已取消关注",{icon:1})
                    //成功取消关注后 修改对应值
                    $(that).text("关注")
       //把属性data-isattention的值修改为0
                    $(that).attr("data-isattention","0")
                  }else{
                    layer.msg("取消关注失败",{icon:2})
                  }
                })
              }
            });
原文地址:https://www.cnblogs.com/chenshaoxiong/p/13410317.html