$scope.exportToCsv = function(){
var blobObj = "省份ID,省份名称,城市ID,城市名称,存量项目数,存量屏幕数,可售屏幕数"+"\n";
for(var i = 0; i < $scope.dataList.length;i++){
var data = $scope.dataList[i];
var obj = "";
obj += data.provinceId+",";
obj += data.provinceName+",";
obj += data.cityId+",";
obj += data.cityName+",";
obj += data.buildingCount+",";
obj += data.deviceCount+",";
obj += data.saleDeviceCount+",";
blobObj = blobObj+obj+"\n";
}
var BOM = "\uFEFF";
var blob = new Blob([BOM+blobObj],{type:"text/plain;charset=utf-8"});
var objectUrl = URL.createObjectURL(blob);
var a = document.createElement('a');
document.body.appendChild(a);
a.setAttribute('style', 'display:none');
a.setAttribute('href', objectUrl);
var filename="导出结果.csv";
a.setAttribute('download', filename);
a.click();
URL.revokeObjectURL(objectUrl);
}