代码如下:
(function ($) {
$.extend({
timer: function (action,context,time) {
var _timer;
if ($.isFunction(action)) {
(function () {
_timer = setInterval(function () {
if (!action(context)) {
clearInterval(_timer);
}
}, time);
})();
}
}
});
})(jQuery);
代码如下:
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>画布</title>
<script src="../script/jquery.min.js"></script>
<script src="../script/jTimer.js"></script>
<style type="text/css">
#wrap
{
display: table;
margin: 0 auto;
}
#cvs
{
display: table-cell;
vertical-align: middle;
}
</style>
<script type="text/javascript">
function drawRound(context) {
if (context.counterclockwise) {
draw(context.x, context.y, context.r, context.start, context.start - Math.PI / 50, context.counterclockwise);
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