parent-child

问题 I have an HTML code like this: <div id="content"> <div class="foobar"></div> </div> I want to append child elements inside div#content before the div.foobar element. How can do that? 回答1: Before I answer your question let me make something more clearer and easier to u so that you understand what your trying to Append means you can insert elements as child elements at the end of the selector example append() and appendTo() Prepend means you can insert elements as child elements at the

问题 Is there a way to make this work. I want to hover over the outer div and hide a child element without using javascript. Is something like this possible? .fullwrap:nth-child(1):hover { display: none; } 回答1: To hide a child element you need an structure like this: #parent:hover .yourchild { display:none; } Where #parent is your outer div and has the :hover action, then you just match the child element to make it hide. In this case I guess you have some structure like this: <div class="fullwrap"

问题 I have Main Form which contains a Panel which loads different Usercontrol into the panel. Now i need to access functions in the Main Form from the UserControl. Below i have given my code; This is my main Windows form class: public partial class Form1 : Form { public Form1() { InitializeComponent(); loadlogin(); } private void loadlogin() { login log = new login(); mainPannel.Controls.Clear(); mainPannel.Controls.Add(log); } public void mytest() { } } As you can see i am loading a usercontrol

问题 I'm looking for a way to create hierarchy in form of child parent relationship between two or more instances of same class. How would one go about creating such objects from nested dictionary like in example ? Is this even possible ? Is there some other way which would be recommended to do such task? # -*- coding: utf-8 -*- from sqlalchemy.ext.declarative import declarative_base from sqlalchemy import create_engine, exists from sqlalchemy.orm import relationship, sessionmaker from sqlalchemy

问题 This question already has answers here : Javascript objects: get parent [duplicate] (12 answers) Closed 2 years ago . I have an object variable a, which has an array associated with it, b. I am passing b to a function and need to check properties in a, the object it's associated with. How can I do this? Can I somehow use an event emitter? function ObjectB (stuff) { this.a = new a(); } function doSomething (s) { //need to get b from a } var b = new ObjectB(info); b.a.doSomething(5); 回答1: There

问题 Please have a look at this project, in this project I have two symbol, one of them create and add another symbol as child. Child symbol is drawn over parent as I expected. Parent symbol has two frames. When parent goes to second frame, child symbol drawn under parent. I mean depth order will change. Can somebody help me!!?? Sorry for poor language. Download link: https://drive.google.com/file/d/0B-KCX3wxRH-cOUk5YU1OUzNFN3M/view?usp=sharing 回答1: Yellow shape from the frame 1 move to the new

问题 Currently I have this JQuery script var img = $(this); img.wrap('<div class="photo"></div>'); img.parent().append("<p>" + img.attr("alt") + "</p>"); which successfully turns the following: <img src="photo.jpg" alt="caption"> into this <div class="photo"> <img src="photos.jpg" alt="caption"/> <p>caption</p> </div> All is well unless the image has a link as a parent; <a href="#"><img since I want it to be correct html (I'm fussy) improving the resulting outcome bellow would be satisfactory <a

问题 I'm working with the jQuery Tablesorter Filters plugin and I'm trying to hide certain <td> . This is what I'm looking to do: -If <td> contains <input class="tablesorter-filter disabled"> , hide the parent <td> <tr class="tablesorter-filter-row"> <td> <input class="tablesorter-filter"> </td> <td> <input class="tablesorter-filter disabled"> </td> <td> <input class="tablesorter-filter"> </td> </tr> <script> jQuery(function ($) { $(".tablesorter-filter-row td").filter(function(i) { return $(this)

问题 I'm writing a TCP server that functions very much like a chatroom and came across this question. When a user connects, a child process is created to serve the user. When a user logs in, I store his username into a text file, online.txt But when a user logs out, I need to remove the user from online.txt (PROBLEM), the parent then signals a reaper() and kills the child. My questions are: Q1: How I can squeeze in additional information to the reaper (such as the username that the user used to

问题 I already tried different solutions, but I can't get the href inside the <a> element. I can reach the div class with soup.select("div.quicklinks") but then I do not know how to take the href with title=Details . Thnaks for the help. 回答1: try using:- divElement.find("a", { "title" : "Details" }) 回答2: try this: link = soup.find('div').find('a').get('href') this should work without knowing the infos before the div 回答3: urls=[] result=driver.find_elements_by_class_name("quicklinks") for res in