```
namespace think;
use think\PHPExcel;
class Csv{
//导出csv文件
public function put_csv($file_name,$list,$title){
header('Content-type: application/octet-stream; charset=utf8');//下载动作的关键
// header ( 'Content-Type: application/vnd.ms-excel' );
header ("Accept-Ranges: bytes" );
header ('Content-Disposition: attachment;filename='.$file_name );
header ('Cache-Control: max-age=0' );
$file = fopen('php://output',"a");
$limit=1000;
$calc=0;
foreach ($title as $k=> $v){
$tit[]=iconv('UTF-8', 'GB2312//IGNORE',$v);
}
fputcsv($file,$tit);
foreach ($list as $v){
$calc++;
if($limit==$calc){
ob_flush();
flush();
$calc=0;
}
foreach ($v as $t){
$tarr[]=iconv('UTF-8', 'GB2312//IGNORE',$t);
}
fputcsv($file,$tarr);
unset($tarr);
}
unset($list);
fclose($file);
exit();
}
}
```
