var ProgressBar = function (divObj,innerClass,outerClass,time) {    var _self = this;    //缓存宽度，以及内联Div    var _outerWidth,_innerDiv;    //div容器    _self._divObj = divObj;    //内围divClass    _self._innerClass = innerClass;    //外围DivClass    _self._outerClass = outerClass;    //总时间    _self._time = time;    //设置内围Class    _self.SetInnerClass = function (innerClass) {        _self._innerClass = innerClass;      }    //完成时回调    _self.completed = function (callback) {        if (typeof callback == 'function') {            _self._completed = callback;        } else {            throw new Error('callback must be a function type');        }    }    //间隔执行函数，每个interval回调一次    _self.intervalFn = function (interval, callback) {        if (typeof interval == 'number' && typeof callback == 'function') {            if (interval % 10 == 0) {                _self._intervalFn = callback;                _self._interval = interval;            } else {                throw new Error('interval must be divied with no remainder 10');            }        } else {            throw new Error('callback must be a function type and the interval must be a Number type');        }    }    if (typeof ProgressBar._initialized == 'undefined') {                //绘制div        ProgressBar.prototype._html = function () {            var html = [];            html.push('
     
      
 
      
      
');            return html.join('');        }        //初始化        ProgressBar.prototype.init = function () {            _self._divObj.append(_self._html());            _outerWidth = _self._divObj.find('div.' + _self._outerClass).width();            _innerDiv = _self._divObj.find('div.' + _self._innerClass);        }        //重置        ProgressBar.prototype.reset = function () {            _innerDiv.css('width', 0);        }        //执行间隔回调        ProgressBar.prototype._evalIntervalFn = function (curTime) {            if (typeof _self._intervalFn != 'undefined') {                if (curTime % _self._interval == 0) {                    _self._intervalFn(curTime);                }            }        }               //运行        ProgressBar.prototype.run = function () {            if (typeof _outerWidth == 'undefined') {                _self.init();            }            var evalRate = 10;//执行频率            var speed = _outerWidth / _self._time * evalRate;            var width = 0;            var curTime = 0;            var interval = window.setInterval(function () {                width = width + speed;                //执行间隔回调                curTime += evalRate;                _self._evalIntervalFn(curTime);                if (width < _outerWidth) {                    _innerDiv.css('width', width);                } else if(width>=_outerWidth){                    _innerDiv.css('width', _outerWidth);                    //完成回调                    if (typeof _self._completed != 'undefined') {                        _self._completed();                    }                    clearInterval(interval);                }            }, evalRate);        }        ProgressBar._initialized = true;    }}