<HTML><HEAD>
<SCRIPT>
function getFileSize (fileName) {
if (document.all) {
window.oldOnError = window.onerror;
window.onerror = function (err) {
if (err.indexOf('utomation') != -1) {
alert('没有访问文件的权限');
return true;
}
else
return false;
};
var fso = new ActiveXObject('Scripting.FileSystemObject');
var file = fso.GetFile(fileName);
window.onerror = window.oldOnError;
return file.Size; }}
</SCRIPT>
</HEAD>
<BODY>
<FORM NAME="formName"><INPUT TYPE="file" NAME="fileName"><BR>
<INPUT TYPE="button" VALUE="查看文件字节大小" ONCLICK="alert(getFileSize(this.form.fileName.value)+'字节')"><BR>
</FORM></BODY>
</HTML>