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图片上传中,文件的校验(1)
图片上传中,文件的校验
来源：奥索网
图片上传中,文件的校验
作者：tonglw 这是我的一点心得，希望能对大家有所帮助。有不足之处请大家包涵，多多指教。
客户端校验
<html>
<head>
<meta http-equiv="Content-Language" content="zh-cn">
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<meta name="GENERATOR" content="Microsoft FrontPage 4.0">
<meta name="ProgId" content="FrontPage.Editor.Document">
<title>选择图片</title>
<SCRIPT ID=clientEventHandlersVBS LANGUAGE=vbscript>
<!--
Sub button1_onclick
if trim(window.form1.file1.value)="" then
alert "选择图片!"
exit sub
end if sfile=trim(window.form1.file1.value)
sfile=UCase(right(sfile,4))
if sfile=".JPG" or sfile=".GIF" then
window.form1.submit
else
alert "选择 *.JPG 或 *.GIF 文件!"
exit sub
end if
End Sub Sub file1_onfocus
sfile=window.form1.file1.value
sfile=ucase(right(sfile,4))
if sfile=".JPG" or sfile=".GIF" then
window.form1.photo.style.visibility="visible"
window.form1.photo.src =window.form1.file1.value
end if
End Sub
-->
</SCRIPT>
</head>
<body style="font-size: 9pt">
<p align="center">选择图片</p>
<FORM action="add.PHP" method=POST method=post enctype="multipart/form-data" id=form1 name=form1>
<div align="center">
<center>
<table border="1" cellspacing="0" width="354" style="font-size: 9pt" bordercolorlight="#000000" bordercolordark="#FFFFFF">
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