1、上传系统调用的都是文本框的ID值和NAME值无关；

2、根据文件名上传文件的时候，某些浏览器对中文不支持，将加密中文命名；

3、每次上传成功后，如果您点击重新上传，再次上传的文件将覆盖上次上传成功的文件；

4、使用加水印和缩略图功能必须空间支持ASPJEPG组件，可以同时完成缩图加水印功能。-1, upload system calls are the ID value of the text box and NAME

2, according to the file name to upload files, some browsers do not support the Chinese, will be encrypted Chinese name

3, after each successful upload, if you click to re upload, upload files will overwrite the last successful file upload

4, the use of watermarking and thumbnails must support the use of ASPJEPG space, can be completed at the same time thumbnail watermark function.