方法如下:
function toLogin(){ var topWin = getTopWin(window); topWin.location.href = "login.jsp"; } function getTopWin(obj){ var op = obj.opener; var pr = obj.parent; if(op){ obj.close(); return getTopWin(op); }else if(pr&&pr!=obj){ return getTopWin(pr); }else { return obj; } }