XMLHttpRequest 2 has a new thing. It can upload files. I got that working (it's super easy). Now I'm wondering if there's a way to get the upload progress of that file. I wouldn't be interested in this normally, but in Google Chrome (8) I saw that the onreadystatechange event is a has a new thing. It can upload
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使用Javascript上传进度（使用或不使用XMLHttpRequest 2）
来源：互联网
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