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统计数字限时增长效果实现：------------简单有效版(配合JQ使用)

2017-03-07 10:13 537 查看

废话不多说直接上代码

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>

</head>
<body>
<!---->
<p id="add_year" class="timer" data-to="3962" data-speed="500"></p>
<script src="jquery"></script>
<script>
$.fn.countTo = function(a) {
a = a || {};
return $(this).each(function() {
var c = $.extend({},
$.fn.countTo.defaults, {
from: $(this).data("from"),
to: $(this).data("to"),
speed: $(this).data("speed"),
refreshInterval: $(this).data("refresh-interval"),
decimals: $(this).data("decimals")
},
a);
var h = Math.ceil(c.speed / c.refreshInterval),
i = (c.to - c.from) / h;
var j = this,
f = $(this),
e = 0,
g = c.from,
d = f.data("countTo") || {};
f.data("countTo", d);
if (d.interval) {
clearInterval(d.interval)
}
d.interval = setInterval(k, c.refreshInterval);
b(g);
function k() {
g += i;
e++;
b(g);
if (typeof(c.onUpdate) == "function") {
c.onUpdate.call(j, g)
}
if (e >= h) {
f.removeData("countTo");
clearInterval(d.interval);
g = c.to;
if (typeof(c.onComplete) == "function") {
c.onComplete.call(j, g)
}
}
}
function b(m) {
var l = c.formatter.call(j, m, c);
f.html(l)
}
})
};
$.fn.countTo.defaults = {
from: 0,
to: 0,
speed: 1000,
refreshInterval: 100,
decimals: 0,
formatter: formatter,
onUpdate: null,
onComplete: null
};
function formatter(b, a) {
return b.toFixed(2)
}
$("#add_year").data("countToOptions", {
formatter: function(b, a) {
return b.toFixed(0).replace(/\B(?=(?:\d{3})+(?!\d))/g, "")
}
});
$(".timer").each(count);
function count(a) {
var b = $(this);
a = $.extend({},
a || {},
b.data("countToOptions") || {});
b.countTo(a)
};
</script>
</body>
</html>

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