场景：在开发APP端时，常用的一个touch事件，在PC端如何将其转换？

措施：代码如下：

        var pcFlag=true;
        //pc端的touch事件转换成mouse事件
        var touchEvents = {
            touchstart:"touchstart",
            touchmove:"touchmove",
            touchend:"touchend",
            initTouchEvents:function () {
                var self = this;
                if (self.isPC()) {
                    self.touchstart = "mousedown";
                    self.touchmove = "mousemove";
                    self.touchend = "mouseup";
                }
            },
            isPC:function(){  //判断pc端与移动端
                var userAgentInfo = navigator.userAgent;
                var Agents = new Array("Android", "iPhone", "SymbianOS", "Windows Phone", "iPad", "iPod");  //判断用户代理头信息
                for (var v = 0; v < Agents.length; v++) {
                    if (userAgentInfo.indexOf(Agents[v]) != -1) { pcFlag = false; break; }
                }
                return pcFlag;   //true为pc端，false为非pc端
            }
        };
        touchEvents.initTouchEvents();

绑定事件的时候，将原来的on('touchstart',function(){})，替换成on('touchEvents.touchstart',function(){}).