Merge branch 'wugg-dev' of wugg/phpstock into version1.5

app/common.php

@@ -977,7 +977,7 @@ if (!function_exists('excelSaveFile')) {
         if (!is_dir($dir)) mkdir($dir, 0777, true);
 
 //        foreach ($datas as $item) {
-
+        PHPExcel_Settings::setCacheStorageMethod();
         PHPExcel_CachedObjectStorageFactory::cache_in_memory_gzip;//单元格缓存为MemoryGZip
         $objPHPExcel = new PHPExcel();