跳过了{APP_WAP_HOST}
<script language=javascript>
var str='<a href="http://...{A_PIC_SHOW}...">some_text</a>”或“<a href="http://...{APP_WAP_HOST}...">some_text</a>”或“<a href="http://...{A_VIDEO_SHOW}...">some_text</a>”或“<a href="http://...{A_KJAVA_SHOW}...">some_text</a>'
re=/<a(\s+)href=(["'])http:\/\/((.(?!({APP_WAP_HOST})))*?)\2(.*?)>(.+?)<\/a>/ig
alert(str.replace(re,'<font color="blue"><u>$7<\/u><\/font>'))
</script>