function randomNum(){var r = Math.floor(Math.random() * 8); var str = "崔濤|徐敏學|陳陽|殷佳美|崔濤|徐敏學|陳陽|殷佳美" var arr = str.split('|'); document.getElementById('in').value = arr[r];}var time;var a;var flag=0;document.getElementById('start') .addEventListener('click',function(){ ? ?if(flag==0) time = setInterval(randomNum,100); flag=1; });document.getElementById('end') .addEventListener('click',function(){ clearInterval(time); flag=0;});window.onkeydown=function(e){ console.log(e.keyCode); console.log(flag); if(e.keyCode==13&&flag==0) { time = setInterval(randomNum,100); flag=1; } else if(e.keyCode==13&&flag==1) { clearTimeout(time); flag=0; }}
請大家幫我看一下為什么我這段代碼在點擊開始和結束無法用鍵盤來打開和關閉定時器反之則可以
慕勒2552214
2017-07-19 16:10:51
