这段js如何设置10秒后才会弹出窗口

Question

window.onload=function(){
        var oDiv=document.getElementById('mask');
        oDiv.onclick=function(){
            var iHeight=css(oDiv,'height');
            var iTarget=-iHeight;
            var timer=null;
            
            timer=setInterval(function(){
                var iTop=css(oDiv,'top');
                var iSpeed=Math.floor((iTarget-iTop)/1);
                var t=iTop+iSpeed;
                if(iTop<=iTarget){
                    clearInterval(timer);
                }else{
                    oDiv.style.top=t+'500px'; 
                }
            },10);
        }
    }

Answer 1

window.onload=function(){
        var oDiv=document.getElementById('mask');
            var iHeight=css(oDiv,'height');
            var iTarget=-iHeight;
            var timer=null;
            
            timer=setInterval(function(){
                var iTop=css(oDiv,'top');
                var iSpeed=Math.floor((iTarget-iTop)/1);
                var t=iTop+iSpeed;
                if(iTop<=iTarget){
                    clearInterval(timer);
                }else{
                    oDiv.style.top=t+'500px'; 
                }
            },10000);
      }

Answer 2

setTimeout(弹窗口的方法,10000);//只执行一次

Answer 3

楼上回答的都是对的，没生效，请看以下问题：1.排查点击事件是否生效，没生效请检查获取的dom是否存在
2.你这是计时器而不是延时器，因此每隔一段时间执行一次
3.计时器如果正常执行，想要的效果没出来，那就是要执行的代码有问题自己要学着排错，这种思维以后会有很多地方都是这样找问题的。

Answer 4

把oDiv.onclick=function........
改成setTimeout(function.........
window.onload=function(){
        var oDiv=document.getElementById('mask');
    setTimeout(function(){
            var iHeight=css(oDiv,'height');
            var iTarget=-iHeight;
            var timer=null;            timer=setInterval(function(){
                var iTop=css(oDiv,'top');
                var iSpeed=Math.floor((iTarget-iTop)/1);
                var t=iTop+iSpeed;
                if(iTop<=iTarget){
                    clearInterval(timer);
                }else{
                    oDiv.style.top=t+'500px'; 
                }
            },10);
    }, 10000);
    }