收集了几种判断远程图片是否存在的方法
js判断:
<script language=javascript>
function IsExist(url)
{
x = new ActiveXObject("Microsoft.XMLHTTP")
x.open("HEAD",url,false)
x.send()
return x.status==200
}
alert(IsExist("
收集了几种判断远程图片是否存在的方法
js判断:
<script language=javascript>
function IsExist(url)
{
x = new ActiveXObject("Microsoft.XMLHTTP")
x.open("HEAD",url,false)
x.send()
return x.status==200
}
alert(IsExist("