獲取后台數據在高德地圖上畫線

        var data =  Iphone.data; //從后台獲取的所有數據
        var geocoder = new AMap.Geocoder(); //創建地圖
        var cityArr = data.data.citys;   //獲取城市名（一個數組）
        var lineArr =[];
        var obj = {};
        for(var i in cityArr) {
           //閉包渲染避免順序錯亂
            (function(index) {
                geocoder.getLocation(cityArr[i], function(status, result) {
                    if (status === 'complete' && result.info === 'OK') {
                        wlggIphone.methods.geocoder_CallBack(result);
                        lineArr.push(result.geocodes[0].location);
                        obj[cityArr[index]] = result.geocodes[0].location;
                        if(lineArr.length == cityArr.length) {
                            var arrSolid = [];
                            var arrDashed = [];
                            for(var j in cityArr) {
                                if(j < (cityArr.length - 2)) {
                                    arrSolid.push(obj[cityArr[j]]);
                                }else if(j == cityArr.length - 2) {
                                    arrSolid.push(obj[cityArr[j]]);
                                    arrDashed.push(obj[cityArr[j]]);
                                }else {
                                    arrDashed.push(obj[cityArr[j]]);
                                }
                            }
                            var polyline = new AMap.Polyline({   
                                path: arrSolid,  
                                strokeColor:"#66C5FF",//線顏色
                                strokeOpacity:1,//線透明度  
                                strokeWeight:3,//線寬
                                strokeStyle:"solid"//線樣式  
                            });  
                            polyline.setMap(map);
                            var polyline1 = new AMap.Polyline({   
                                path: arrDashed,  
                                strokeColor:"#66C5FF",//線顏色
                                strokeOpacity:1,//線透明度  
                                strokeWeight:1,//線寬
                                strokeStyle:"dashed"//線樣式  
                            });  
                            polyline1.setMap(map);
                           
                        } 
                    }
                });
            })(i)
        }