<脚本>varoBox=document.querySelector('.box');varoInner=document.querySelector('.inner');oBox.addEventListener('点击',function(e){console.log('点击外框');},false);oInner.addEventListener('click',function(e){console.log('clickedtheinner');},false);varbox3=document.querySelector('.box3');box3.addEventListener('click',function(e){console.log('box3被点击');},false);