{dede:field.body runphp='yes'}
$content = @me;
$mode1 = "/<img/";
$mode2 = "/height=\"(\d+)\" /";
$str1 = "<img onload=\"javascript:ImgReSize(this)\"";
$content = preg_replace($mode1,$str1,$content);
$content = preg_replace($mode2,"",$content);
@me = $content;
{/dede:field.body}

<script language='javascript'>
function ImgReSize(e)
{

if(e.width>670) // 670可根據(jù)你文章的內(nèi)容區(qū)域大小，可調(diào)整
{
e.width=670; // 等同上面你設(shè)的那個(gè)數(shù)值
e.style.width="";
}
if(e.height>10)
{
e.style.height="";
}

}
</script>