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发布时间:2022-04-22 03:43
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时间:2022-04-23 08:18
<FORM method="POST" enctype="multipart/form-data" action="" name="form1">
图片:<img src="" ID="DoImgName1" width="300" height="200"><br>
选择:<INPUT type="file" name="ImgFile1" size="38" OnPropertyChange="dochange1();" value="">
</FORM>
<script language="javascript">
function dochange1() {
var thissrc;
thissrc=this.form1.ImgFile1.value;
strs=thissrc.toLowerCase();
lens=strs.length;
extname=strs.substring(lens-4,lens);
if(extname==".jpg" || extname==".gif" || extname==".swf"){
document.all.DoImgName1.src=thissrc;
}
}
</script>