我用jquery 给层设高度
- JScript code
$(function () { alert($("#div_mian").height());//数值是1440 $("#div_mian").height($("#div_mian").height()); $(window.document.body).css("overflow-y", "hidden"); alert($("#div_mian").height());//数值是1440但是层没出滚动条。（样式中这样设置：overflow-y:auto;） });------解决方案--------------------------------------------------------
$(window.document.body).css("overflow-y", "hidden");
--->
$("body").css("overflow-y", "hidden");