当页面初步加载时，显示数字滚动。
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html;charset=UTF-8"/>
<title>test</title>
<style type="text/css">
*{ margin:0; padding:0;}
body{font:12px/1 arial; background:#3f3f3f;}
.num{ width:500px; padding:10px 0;border-radius:15px;text-shadow:1px 1px 1px #999; color:#fff;text-align:center; margin:120px auto; font-size:62px; font-weight:bold; border:5px solid #ccc; background:#fff;}
.num strong{ font-weight:normal; border:1px solid #ccc; background:#333; padding:0 10px; text-align:center;}
</style>
</head>
<body>
<div id="num" class="num" style="display:none;">1000000</div>
<script type="text/javascript">
String.prototype.repeat = function(n){
return Array(n + 1).join(this);
};
var addFixed = 5, // 单次增加值
node = document.getElementById('num'),
emTotal = node && node.innerHTML;
function numAnim(){
var len = 1,
last = 0, // 最终值
n = 0; // 需要填充的空白0
if(addFixed < emTotal){ // 跳出setTimeout条件
addFixed += Math.ceil((emTotal - addFixed) / 3);
len = emTotal.length - (addFixed + '').length;
last = n + '' + addFixed;
n = '0'.repeat(10).slice(len);
if(len == 0){ // 如果等于0后删除首位
last = last.slice(1);
}
last = last.split('');
last = '<strong>' + last.join('</strong><strong>') + '</strong>';
node.innerHTML = last;
}
setTimeout(numAnim, 100);
}
node.style.display = 'block';
numAnim();
</script>
</body>
</html>
运行代码
