javascript循环定时问题

<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>循环计时</title> </head> <body> <div>10</div> <div>9</div> <div>8</div> <script type="text/javascript"> var list = document.getElementsByTagName('div'); console.log(list); setInterval(function(){ for(var i = 0;i < list.length;i++){ console.log(list[i].innerHTML); if(list[i].innerHTML != 0){ list[i].innerHTML = parseInt(list[i].innerHTML) -1; }else{ list[i].innerHTML = 0; } } },1000) </script> </body> </html>大概是这样的效果吧

javascript循环定时问题

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