百度地图api 用闭包实现对多个覆盖物事件的保存

  //闭包实现保留面的事件 开始 =======================================================
            function qiuxu(){

var qiuxu_id = this_id;
var qiuxu_zhongxin = this_zhongxin;
var qiuxu_dian = this_dian;
var qiuxu_mingcheng = this_mingcheng;


//鼠标经过面的时候
                            xx_mian[qiuxu_id].addEventListener("mouseover", function(){  
                                xx_mian[qiuxu_id].setFillOpacity(0.1); 
                                xx_mian[qiuxu_id].setStrokeOpacity(1); 
//中心坐标显示
//marker[qiuxu_id].show(); 
                            });


//鼠标在面上移动的时候
                            xx_mian[qiuxu_id].addEventListener("mousemove", function(){  

var tishi_mingcheng = document.getElementById('tishi_mingcheng'); //将要弹出的层 
                                tishi_mingcheng.style.display="block";  
                                tishi_mingcheng.style.left=window.event.clientX+20; 
                                tishi_mingcheng.style.top=window.event.clientY; 
                                tishi_mingcheng.style.position="absolute";  
                                document.getElementById('tishi_mingcheng2').innerHTML = qiuxu_mingcheng;

                            });

//鼠标离开面的时候
                            xx_mian[qiuxu_id].addEventListener("mouseout", function(){  

                                xx_mian[qiuxu_id].setFillOpacity(0.01); 
                                xx_mian[qiuxu_id].setStrokeOpacity(0.01); 
                                marker[qiuxu_id].hide(); 
var tishi_mingcheng = document.getElementById('tishi_mingcheng'); //将要弹出的层 
                                tishi_mingcheng.style.display="none";  

                            });