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//单个上传文件格式验证
function blurVali(fulid,imgId)
{
debugger;
var fulObj=document.getElementById(fulid);//获得上传控件的对象
var imgObj=document.getElementById(imgId);//获得图片对象;
var http=fuVali(fulid);
if(strVali(http))//判断格式
{
var path=fulObj.value;
imgObj.src=path;
return;
}
imgObj.src="";
}
function viewimg(Img)
{
var mine = Img.value;
if(mine!="")
{
mine=mine.toLowerCase().substring(mine.lastIndexOf('.'));
if(mine!=".jpg")
{
Img.focus();
document.execCommand("selectall");
document.execCommand("delete");
alert('头像必须是.jpg格式的');
document.getElementById('ctl00_ContentPlaceHolder1_imgUserFace').src="";
}
else
{
document.getElementById('ctl00_ContentPlaceHolder1_imgUserFace').src=Img.value;
}
}
}
<ul class="ul">
<li>上传案例大图片:<asp:FileUpload ID="fulMaxPic" onchange="blurVali('fulMaxPic','maxImg')"
CssClass="input" runat="server" />上传图片格式[jpg][gif] </li>
<li>原图:
<img id="maxImg" runat="server" src="~/admin/images/wehao_03.jpg" alt="" /></li>
<li>上传案例小图片:<asp:FileUpload ID="fulMinPic" onchange="blurVali('fulMinPic','minImg')"
CssClass="input" runat="server" />上传图片格式[jpg][gif]</li>
<li>原图:
<img id="minImg" runat="server" src="../images/wehao_03.jpg" alt="" /></li></ul>