获取鼠标坐标 模拟 鼠标事件执行

function simulateClick(data){
    var sx= data['x'],sy= data['y'],cx=sx,cy=sy;
    //鼠标按下
        var eventDown = document.createEvent("MouseEvents");
        eventDown.initMouseEvent("mousedown",true,true,window,0,sx,sy,cx,cy,false,false,false,false,0,null);
       //鼠标放开 
        var eventUp = document.createEvent("MouseEvents");
        eventUp.initMouseEvent("mouseup",true,true,window,0,sx,sy,cx,cy,false,false,false,false,0,null);
      //鼠标点击  
        var eventclick = document.createEvent("MouseEvents");
        eventclick.initMouseEvent("click",true,true,window,0,sx,sy,cx,cy,false,false,false,false,0,null);
        
        document.elementFromPoint(sx, sy).dispatchEvent(eventDown);
        document.elementFromPoint(sx, sy).dispatchEvent(eventUp);
        document.elementFromPoint(sx, sy).dispatchEvent(eventclick);
	//鼠标移入ox，oy 鼠标上次的坐标
        var osx = data['ox'], osy = data['oy'], ocx = osx, ocy = osy;
        var eventout = document.createEvent("MouseEvents");
        eventout.initMouseEvent("mouseout", true, true, window, 0, osx, osy, ocx, ocy, false, false, false, false, 0, null);
       document.elementFromPoint(osx, osy).dispatchEvent(eventout);
       //鼠标移除
        var eventover = document.createEvent("MouseEvents");
        eventover.initMouseEvent("mouseover",true,true,window,0,sx,sy,cx,cy,false,false,false,false,0,null);
        document.elementFromPoint(sx, sy).dispatchEvent(eventover);

}