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})

                  }

                })

              }

            });