大图轮播完整流程代码操作：
<style> * { margin: 0px; padding: 0px; } .stage { width: 500px; height: 300px; border: 5px solid black; margin: 200px; position: relative; overflow: hidden; } .to-left, .to-right { position: absolute; top: 0px; width: 50px; height: 300px; background-color: black; color: white; font-size: 30px; text-align: center; line-height: 300px; opacity: 0.3; } .to-left { left: 0px; } .to-right { right: 0px; } .to-left:hover, .to-right:hover { cursor: pointer; opacity: 0.5; } .banner { width: 3000px; height: 300px; } .items { float: left; width: 500px; height: 300px; background-color: blanchedalmond; font-size: 100px; text-align: center; line-height: 300px; } </style> </head><!--大图轮播特效--> <body> <div class="stage"> <div class="to-left"> <</div> <div class="to-right">></div> <div class="banner"> <div class="items">1</div> <div class="items" style="">2</div> <div class="items" style="">3</div> <div class="items" style="">4</div> <div class="items" style="">5</div> <div class="items">1</div> </div> </div> </body></html><script> var to_right = document.getElementsByClassName('to-right')[0]; var to_left = document.getElementsByClassName('to-left')[0]; var banner = document.getElementsByClassName('banner')[0]; var arr = []; var count = 1; to_right.onclick = function() { toRight(); } function toRight(){ arr.push(window.setInterval("moveLeft()", 30)); } to_left.onclick = function() { toLeft(); } function toLeft(){ arr.push(window.setInterval("moveRight()", 30)); } function moveLeft() { if(count < 5) { if(banner.offsetLeft > count * (-500)) { banner.style.marginLeft = banner.offsetLeft - 20 "px"; } else { for(var x in arr) { window.clearInterval(arr[x]); } count ; }// 连接点 }else{ if(banner.offsetLeft > count * (-500)) { banner.style.marginLeft = banner.offsetLeft - 20 "px"; } else { for(var x in arr) { window.clearInterval(arr[x]); } count = 1; banner.style.marginLeft = 0 'px'; } } } function moveRight() { if(count-1 >0) { if(banner.offsetLeft < (count-2) * (-500)) { banner.style.marginLeft = banner.offsetLeft 20 "px"; } else { for(var x in arr) { window.clearInterval(arr[x]); } count--; } } } window.setInterval("toRight()",1750); </script>
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