fileupload
- 网络文件上传;控件
fileupload-
The update () method is called automatically by the FileUpload package to refresh the latest information about how many bytes are transferred .
update（）方法自动由FileUpload包调用以刷新有关所传输字节数的最新信息。
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One of the biggest problems with the FileUpload control is getting it to handle large files which are bigger than the default4MB .
其中一个很常见的问题就是如何处理超过4MB的大文件上传。