移动端与PC端的触屏事件

由于移动端是触摸事件，所以要用到H5的属性touchstart/touchmove/touched,但是PC端只支持鼠标事件，所以此时可以这样转换

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
           var flag = true;
           for (var v = 0; v < Agents.length; v++) {
               if (userAgentInfo.indexOf(Agents[v]) != -1) { flag = false; break; }
           }
           return flag;   //true为pc端，false为非pc端

　　　　 }
    };