自定义文件名,会导致无扩展名
@ -252,7 +252,7 @@
private function setSeveName()
{
$this->saveName = $this->randomFileName();
$this->saveName = $this->randomFileName().".".$this->fileExt;
if($this->saveName == '') //如果没生成随机文件名,就保留原文件名