CI框架上传csv文件

今天遇到在用CI框架上传csv文件时报错问题：

The filetype you are attempting to upload is not allowed.

是类型不容许，想到CI框架的config/mimes.php的配置，发现已经有csv的mimes配置，并且在win7下是能够上传的

因而百度之，半天没结果，果真换google，找到以下的记录：

The answer to my problem was with MIME types—I’ll leave this comment up here in case it is related. My CSV was returning with a MIME type of text/plain instead of any of the many acceptable CSV MIME types, so I just added text/plain to the csv entry in application/config/mime.php

因而在config/mimes.php中的csv数组中加入  text/plain，问题解决