1  if (iframe.get(0).attachEvent) { 2             iframe.get(0).attachEvent("onload", function () { 3                 var new_h = iframe.get(0).contentWindow.document.documentElement.offsetHeight + document.getElementsByClassName('nav')[0].offsetHeight; 4                 iframe.get(0).height = h >= new_h ? (h - 34) : (new_h - 34);; 5  6             }); 7             return; 8         } else { 9             iframe.get(0).onload = function () {
   //将子iframe的高度设置为子页面的高度10 11                 var new_h = iframe.get(0).contentDocument.body.offsetHeight + document.getElementsByClassName('nav')[0].offsetHeight;12 13                 iframe.get(0).height = h >= new_h ? (h) : (new_h);14                 //iframe.get(0).height = new_h;15             }16         };