如何让轮播图可以上下切换图片

function one (type){document.getElementById("a").innerHTML ='<img src="img/'+type+'">'}var d = 5;function two (type){document.getElementById("a").innerHTML = '<img src="img/'+d+'.jpg">';if(type=='shang'){d--;if(d==0){d=5;}}else if(type == 'xia'){d++;if(d==6){d=1;}}}

window.onload = function(){setInterval(function(){document.getElementById("a").innerHTML = '<img src="img/'+d+'.jpg">';d++;if(d==6){d=1;}},4000)}

转载于:https://www.cnblogs.com/gaowc/p/10701035.html

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