页面上有个HTML上传控件（ <input id= "File1 " type= "file " /> ），怎么像FileUpload的FileUpload1.PostedFile.FileName
来取得上传文件的路径？谢谢
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用一个隐藏按钮把然后把File1.value赋值给它
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（ <input id= "File1 " type= "file " runat= "server " /> ），
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用法与FileUpload差不多
.aspx:
<input id= "File1 " type= "file " runat= "server " />
.cs:
File1.PostedFile.FileName
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HttpFileCollection files = HttpContext.Current.Request.Files;
HttpPostedFile postedFile = files[0];
string path=postedFile.FileName