//用流读取图片 清空之后再次关联地址
//设置FileShare.ReadWrite权限之后 不会提示占用进程异常 item是物理路径
DiscussionImageList = new InterviewDiscussionApiModel();
FileInfo MyFile = new FileInfo(item);
MyStream=MyFile.Open(FileMode.Open,FileAccess.Read,FileShare.ReadWrite);
DiscussionImageList.DISCUSSION_IMAGES = MyStream.Name;
ImageListBox.Add(DiscussionImageList);