我自己电脑上测试并没有问题
var myUrl = "http://" + hostIP + ":8080/pm4h2/help/PM4H Operation Guide(V100R001V4.5_01).doc";
window.open(myUrl,'', 'height='+height+', width='+width+',depended=yes, resizable=yes, top=0,left=0' )