virtual

问题 What is the order of constructor call in virtual inheritance in c++? For the following two cases of multiple inheritance; (I) for the following code, without virtual inheritance; class a { public: a() { cout<<"\t a"; } }; class b: public a { public: b() { cout<<"\t b"; } }; class c: public b { public: c() { cout<<"\t c"; } }; class d: public c { public: d() { cout<<"\t d"; } }; class e: public c, public d { public: e() { cout<<"\t e"; } }; class f: public b, public e { public: f() { cout<<"\t

问题 I want to drop and drag object in A-Frame. I used <script src="https://unpkg.com/aframe-click-drag-component"></script> I also saw this problem has been answered in this post. However it is not working in my case. here is sample code between <a-scene> tag: <a-entity click-drag position="-2 -1 -1"> <a-obj-model checked="off" visible="false" id="deer1" src="#deer11" mtl="#deer11-material" scale="0.1 0.1 0.1" rotation=" 0 -40 0"> <a-animation attribute="scale" begin="mouseenter" to="0.2 0.2 0.2"

问题 I am developing an application which would redirect i/o from parallel port of, say, device A to the parallel port of device B . The two devices are connected on ethernet (LAN, WAN, internet, etc.). Device A has a physical parallel port attached to it but device B is a machine with no parallel port on it. This is what makes me emulate a parallel port on device B such that windows thinks that it has a parallel port and works in the very manner with it as it works with parallel ports on hardware

问题 I'm trying to swap out the contents of a method at runtime for the purposes of unit testing legacy code. I've been working with these SO answers; Dynamically replace the contents of a C# method? How to replace the pointer to the overridden (virtual) method in the pointer of my method? (Release x64 and x86) Here's a full code sample of what I have so far. using System; using System.Diagnostics; using System.Reflection; using System.Runtime.CompilerServices; namespace Foo.Bar { public interface

问题 There are a lot of questions about this. But they all talk about leaving the focus on a field. Here is my problem: I have a input type field. When the user clicks on it, it will open my custom mobiscroll feature. and in some cases like by Android 2.* or windows surface tablets it shows the virtual keyboard as well ! How can i code a case that the virtual keyboard will never appear ! Who can help me :) 回答1: To remove the keyboard you need to lose the focus on the active element. No other

问题 There are a lot of questions about this. But they all talk about leaving the focus on a field. Here is my problem: I have a input type field. When the user clicks on it, it will open my custom mobiscroll feature. and in some cases like by Android 2.* or windows surface tablets it shows the virtual keyboard as well ! How can i code a case that the virtual keyboard will never appear ! Who can help me :) 回答1: To remove the keyboard you need to lose the focus on the active element. No other

问题 I've installed XAMPP on Ubuntu in '/opt/lampp' directory and would like to set up some VirtualHosts. Apache Virtual Host tutorial instructs to place <VirtualHost *:80> ... </VirtualHost> code in '/etc/apache2/sites-available/[virtualhostname].conf'. The problem is that I don't have 'apache2' folder in '/etc'. I also don't have 'sites-available' directory in '/opt/lampp/apache2'. I have '/opt/lampp/etc/httpd.conf' and '/opt/lampp/etc/extra/httpd-vhosts.conf' files though. Which ones shall I

问题 I've installed XAMPP on Ubuntu in '/opt/lampp' directory and would like to set up some VirtualHosts. Apache Virtual Host tutorial instructs to place <VirtualHost *:80> ... </VirtualHost> code in '/etc/apache2/sites-available/[virtualhostname].conf'. The problem is that I don't have 'apache2' folder in '/etc'. I also don't have 'sites-available' directory in '/opt/lampp/apache2'. I have '/opt/lampp/etc/httpd.conf' and '/opt/lampp/etc/extra/httpd-vhosts.conf' files though. Which ones shall I

问题 I've installed XAMPP on Ubuntu in '/opt/lampp' directory and would like to set up some VirtualHosts. Apache Virtual Host tutorial instructs to place <VirtualHost *:80> ... </VirtualHost> code in '/etc/apache2/sites-available/[virtualhostname].conf'. The problem is that I don't have 'apache2' folder in '/etc'. I also don't have 'sites-available' directory in '/opt/lampp/apache2'. I have '/opt/lampp/etc/httpd.conf' and '/opt/lampp/etc/extra/httpd-vhosts.conf' files though. Which ones shall I

问题 I am using Selenium to open a web site, login and copy some information from one web site. However it is happening on my work station and have a display monitor. my IT team wants to move this process to a virtual server which does not have a monitor. 1.Will this work - even if we install Chrome of Firefox on the server 2. Can we Chrome - headless to make this happen 3. Any other way - we can think of using Xserver Please let me know. 回答1: Chrome headless should solve your problem here -- I've