修复：目录导出后临时文件未删除的问题

shandan-browser/src/main/java/com/keyware/shandan/browser/service/ExportComponent.java

@@ -231,7 +231,7 @@ public class ExportComponent extends Thread {
     private void delete(String path) {
         File file = new File(path);
         if (file.exists()) {
-            file.delete();
+            FileUtil.del(file);
         }
     }