unless the ActiveX security settings on your client's machine are very low, it is not possible, otherwise, tryvar filespec = document.FormName.FileInputName.value;
var fso = new ActiveXObject("Scripting.FileSystemObject");
var f = fso.GetFile(filespec);
var n = f.Size;
if (n > 1000000)
alert("too large");
var fso = new ActiveXObject("Scripting.FileSystemObject");
var f = fso.GetFile(filespec);
var n = f.Size;
if (n > 1000000)
alert("too large");
解决方案 »
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