html
<body onload="blinklink()" onunload="stoptimer()">
<a href="javascript:;" class="iforeginbtn" id="flashit">马上注册领取</a>
</div>
js
var flashit=document.getElementById('flashit'); function blinklink(){ if(flashit.style.backgroundColor=='rgb(232, 83, 63)'){ //注意:这里拿到的是rgb格式的 flashit.style.backgroundColor='#485fbd'; }else{ flashit.style.backgroundColor='rgb(232, 83, 63)'; } timer=setTimeout("blinklink()",300); } function stoptimer(){ clearTimeout(timer); }