25、html前端登录注册是获取验证码倒计时的简单代码

               <button @click="goto" class="djs">获取验证码</button>

               begin(){
                    $(".djs").attr("disabled","true")
                    var down = 5;
                    let djs=setInterval(function(){
                        if(down == 1){
                            down = 5;
                            clearInterval(djs)
                            $(".djs").attr("disabled","false")
                            $(".djs").html("获取验证码")
                        }else{
                            down--;
                            $(".djs").html(down+"秒后重新获取")
                        }
                    },1000)
                }