如果出现: nested push animation can result in corrupted navigation bar Finishing up a navigation transition in an unexpected state. Navigation Bar subview tree might get corrupted. 一般这种情况是在自定义的tabbarController 的ViewWillAppera中没有调用superWillAppera, 调用父类方法就
3.页面中获取 iframe 中的值 var obj=document.getElementsByClassName(".ke-edit-iframe").contentWindow; var obj1=obj.document.getElementsByClassName(".ke-content"); var val=eval(obj1).html();